Microsoft Word - STD1242 FR.doc
File No: STD/1242
June 2007
NATIONAL INDUSTRIAL CHEMICALS NOTIFICATION AND ASSESSMENT SCHEME
(NICNAS)
FULL PUBLIC REPORT
Chemical B in Bonjet Black 818
This Assessment has been compiled in accordance with the provisions of the Industrial Chemicals (Notification and
Assessment) Act 1989 (Cwlth) (the Act) and Regulations. This legislation is an Act of the Commonwealth of Australia.
The National Industrial Chemicals Notification and Assessment Scheme (NICNAS) is administered by the Department
of Health and Ageing, and conducts the risk assessment for public health and occupational health and safety. The
assessment of environmental risk is conducted by the Department of the Environment and Water Resources.
For the purposes of subsection 78(1) of the Act, this Full Public Report may be inspected at our NICNAS office by
appointment only at 334-336 Illawarra Road, Marrickville NSW 2204.
This Full Public Report is also available for viewing and downloading from the NICNAS website or available on
request, free of charge, by contacting NICNAS. For requests and enquiries please contact the NICNAS Administration
Coordinator at:
Street Address: 334 - 336 Illawarra Road MARRICKVILLE NSW 2204, AUSTRALIA.
Postal Address: GPO Box 58, SYDNEY NSW 2001, AUSTRALIA.
TEL: + 61 2 8577 8800
FAX + 61 2 8577 8888
Website: www.nicnas.gov.au
Director
NICNAS
TABLE OF CONTENTS
FULL PUBLIC REPORT....................................................................................................................................... 3
1. APPLICANT AND NOTIFICATION DETAILS ................................................................................... 3
2. IDENTITY OF CHEMICAL ................................................................................................................... 3
3. COMPOSITION ...................................................................................................................................... 3
4. PHYSICAL AND CHEMICAL PROPERTIES ...................................................................................... 4
Discussion of Observed Effects ............................................................................................................... 4
5. INTRODUCTION AND USE INFORMATION..................................................................................... 4
6. HUMAN HEALTH IMPLICATIONS..................................................................................................... 5
6.1. Exposure assessment ...................................................................................................................... 5
6.1.1. Occupational exposure............................................................................................................... 5
6.1.2. Public exposure.......................................................................................................................... 6
6.2. Human health effects assessment.................................................................................................... 6
6.3. Human health risk characterisation................................................................................................. 8
6.3.1. Occupational health and safety .................................................................................................. 8
6.3.2. Public health .............................................................................................................................. 9
7. ENVIRONMENTAL IMPLICATIONS .................................................................................................. 9
7.1. Environmental Exposure & Fate Assessment................................................................................. 9
7.1.1 Environmental Exposure ................................................................................................................ 9
7.1.2 Environmental fate........................................................................................................................ 10
7.1.3 Predicted Environmental Concentration (PEC) ............................................................................ 10
7.2. Environmental effects assessment ................................................................................................ 10
7.2.1 Predicted No-Effect Concentration............................................................................................... 10
7.3. Environmental risk assessment..................................................................................................... 11
8. CONCLUSIONS ?SUMMARY OF RISK ASSESSMENT FOR THE ENVIRONMENT AND
HUMAN HEALTH ......................................................................................................................................... 11
8.1. Hazard classification..................................................................................................................... 11
8.2. Human health risk assessment ...................................................................................................... 11
8.2.1. Occupational health and safety ................................................................................................ 11
8.2.2. Public health ............................................................................................................................ 11
8.3. Environmental risk assessment..................................................................................................... 11
9. MATERIAL SAFETY DATA SHEET.................................................................................................. 12
10. RECOMMENDATIONS .................................................................................................................. 12
11. REGULATORY OBLIGATIONS .................................................................................................... 13
12 . BIBLIOGRAPHY ............................................................................................................................. 13
Appendix A: Physico-Chemical Properties .......................................................................................................... 16
Appendix B: Toxicological Investigations ........................................................................................................... 19
B.1. Acute toxicity ?oral ..................................................................................................................... 19
B.2. Acute toxicity ?dermal................................................................................................................. 19
B.3. Irritation ?skin ............................................................................................................................. 19
B.4. Irritation ?eye .............................................................................................................................. 20
B.5. Skin sensitisation .......................................................................................................................... 21
B.6. Repeat dose toxicity (14 day) ....................................................................................................... 21
B.7. Repeat dose toxicity (28 day) ....................................................................................................... 22
B.8. Genotoxicity ?bacteria................................................................................................................. 24
B.9. Genotoxicity ?in vitro.................................................................................................................. 25
B.10. Genotoxicity ?in vivo................................................................................................................... 25
Appendix C: Environmental Fate and Ecotoxicological Investigations ............................................................... 27
C1. Environmental Fate....................................................................................................................... 27
C.1.1. Ready biodegradability ....................................................................................................... 27
C.1.2. Bioaccumulation ................................................................................................................. 27
C2. Ecotoxicological Investigations.................................................................................................... 27
C.2.1. Acute toxicity to fish ........................................................................................................... 27
C.2.2. Acute/chronic toxicity to aquatic invertebrates................................................................... 28
C.2.3. Algal growth inhibition test ................................................................................................ 29
C.2.4. Inhibition of microbial activity ........................................................................................... 30
Created on 13/06/2007 1:17 PM Last Saved 21/06/2007 12:09 PM
June 2007 NICNAS
FULL PUBLIC REPORT
Chemical B in Bonjet Black 818
1. APPLICANT AND NOTIFICATION DETAILS
APPLICANT(S)
Epson Australia Pty Ltd (ABN 91 002 625 783) of 3 Talavera Rd, North Ryde NSW 2113
NOTIFICATION CATEGORY
Standard: Chemical other than polymer.
EXEMPT INFORMATION (SECTION 75 OF THE ACT)
Data items and details claimed exempt from publication:
Chemical names, CAS number, Molecular formula, Structural formula, Molecular weight,
Spectral data, Methods of detection and determination, Purity, % Weight of Impurities,
Confidential use details and Import volume
VARIATION OF DATA REQUIREMENTS (SECTION 24 OF THE ACT)
Variation to the schedule of data requirements is claimed as follows:
Dissociation constant, Flash Point, and Bioaccumulation
PREVIOUS NOTIFICATION IN AUSTRALIA BY APPLICANT(S)
None
NOTIFICATION IN OTHER COUNTRIES
UK (2002)
2. IDENTITY OF CHEMICAL
MARKETING NAME(S)
Bonjet Black 818
OTHER NAME(S)
Bonjet Black 817-E
MOLECULAR WEIGHT
>500 Da
ANALYTICAL DATA
Reference 1H-NMR, IR, and UV spectra were provided.
3. COMPOSITION
DEGREE OF PURITY
>85% ?for the mixture of two chemicals in Bonjet Black 818
NON HAZARDOUS IMPURITIES/RESIDUAL MONOMERS (>1% by weight)
None
ADDITIVES/ADJUVANTS
The notified chemical is Chemical B in Bonjet Black 818. A second major component of this dye,
"Chemical A", is notified as STD/1036. These two chemicals are synthesised in the same mixture to
form the dye product Bonjet Black 818.
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June 2007 NICNAS
4. PHYSICAL AND CHEMICAL PROPERTIES
The physicochemical properties (except where otherwise noted with an asterisk) were determined for a mixture
of two chemicals, Bonjet Black 817-E, equivalent to Bonjet Black 818. For full details of tests for physical and
chemical properties, please refer to Appendix A.
Appearance at 20oC and 101.3 kPa Dark brown powder
Property Value Data Source/
Justification
Melting Point/Boiling Point Decomposed without melting from 175篊 Measured
1,420 kg/m3 at 21篊
Density Measured
5.2?0-5 kPa at 25篊 Measured
Vapour Pressure
Water Solubility 54.2 g/L at 20篊 Measured*
Hydrolysis as a Function of pH t?> 1 year at 25篊 (pH 4, 7, 9) Estimated*
log Pow = -1.89 at 45篊 Measured*
Partition Coefficient (n-octanol/water)
Surface Tension 60.1 mN/m at 22.0篊 Measured
log Koc <1.25 at 40篊 Measured*
Adsorption/Desorption
Dissociation Constant Not determined. QSAR estimates: Numerous ionisable
pKa = -0.53-11.74. groups*
Inhalable fraction (<100 祄): 54.3%
Particle Size Measured
Respirable fraction (<10 祄): 19.3%
Flash Point Not determined Solid with low vapour
pressure
Flammability Not highly flammable Measured
Autoignition Temperature 342篊 Measured
Explosive Properties Not expected to be explosive Estimated*
Oxidising Properties Not oxidising Measured
Moisture Content Mean moisture content = 8.368% (w/w) Measured
* Value determined for the notified chemical, not for the mixture Bonjet Black 817-E.
Discussion of Observed Effects
Reactivity
The notified chemical is not oxidising, and it is stable under normal conditions. It is expected to burn if
involved in a fire, evolving noxious fumes (eg oxides of carbon, nitrogen, sulfur and phosphorus).
5. INTRODUCTION AND USE INFORMATION
MODE OF INTRODUCTION OF NOTIFIED CHEMICAL (100%) OVER NEXT 5 YEARS
The notified chemical will be imported as a component of inkjet printer inks (<5%), contained within
individually packaged inkjet printer cartridges.
MAXIMUM INTRODUCTION VOLUME OF NOTIFIED CHEMICAL (100%) OVER NEXT 5 YEARS
Year 1 2 3 4 5
Tonnes <1 <1 <1 <1 <1
PORT OF ENTRY
Sydney
IDENTITY OF MANUFACTURER/RECIPIENTS
None known at this time. Potentially, the inkjet printer cartridges containing the notified chemical will
be supplied to offices and retailers nationwide.
TRANSPORTATION AND PACKAGING
The notified chemical will be imported as a component of ready-to-use sealed plastic inkjet cartridges
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June 2007 NICNAS
of 5-100 mL volumes. The cartridges are individually wrapped in plastic and cardboard packaging,
and these will be imported in bulk in cardboard cartons. The cartridges will be transported by road.
USE
The notified chemical will be used in inkjet printer inks as a component of the dye product Bonjet
Black 818. Both it and "Chemical A in Bonjet Black 818" (STD/1036) will each be present in the inks
at <5%. The inks will be imported within inkjet printer cartridges, which will be used for office and
general printing work by the public. Sealed ink cartridges containing the notified chemical will be used
as necessary to replace spent cartridges in inkjet printers.
OPERATION DESCRIPTION
No reformulation or repackaging of the notified chemical will occur in Australia. The products
containing the notified chemical will be delivered to the end-user in the same form that they will be
imported.
The cartridges will be transported and stored prior to national distribution where they will be used in
office or home printing equipment. The cartridges will be installed or replaced into the inkjet printer
by office workers, service technicians or consumers.
6. HUMAN HEALTH IMPLICATIONS
6.1. Exposure assessment
6.1.1. Occupational exposure
Number and Category of Workers
Category of Worker Number Exposure Exposure
Duration Frequency
Importation/Waterside workers 10 4 hrs per day 70 days per year
Storage and transport 100 6 hrs per day 240 days per year
Office workers, service technicians, consumers 10,000 <0.1 hrs per day 20 days per day
Exposure Details
Exposure to the notified chemical during the importation, transport and storage of the printer
cartridges is not expected, except in the unlikely event of an accident where the cartridge and its
packaging may be breached. The cartridges will be distributed to a number of outlets, where the
cardboard cartons will be opened and boxes containing individual cartridges will be stacked on
shelves.
There is low potential for office workers to be exposed to the notified chemical in inks (<5%
concentration) when replacing spent cartridges. Both office workers and service technicians may be
exposed to the notified chemical in ink while changing printer cartridges. Replacement of printer
cartridges involves removal of the old printer cartridge from the printing machine and directly loading
the new cartridge. Dermal exposure to small quantities of the notified chemical may occur if the print
heads are touched while replacing the cartridges, but workers are expected to avoid direct contact with
inks to avoid staining of their skin and/or clothing. In addition, dermal and possibly ocular exposure
could occur when handling faulty or ruptured cartridges. Overall, the design of the cartridges is
expected to be such that they can be easily replaced without dermal exposure to ink. Accidental
contact is expected to be minimal.
Dermal exposure of office workers to the notified chemical from dried inks on printed paper is
expected to be minimal, as the dye will be largely bound to the paper within the matrix of the dried
ink. The extent of binding of the notified chemical within the ink matrix on media is expected to be
based on the other components of the ink (eg polymers) and the components and properties of the
media (eg absorbency, hydrophobicity, paper coatings or other ingredients). The binding is therefore
likely to be a combination of how well integrated the notified chemical will become with these
components upon drying of the ink.
The most probable exposure of office workers to the notified chemical will be to wet ink on freshly
printed media, especially when printing on non-absorbent materials. The extent of dermal exposure of
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June 2007 NICNAS
workers to wet ink on paper or other non-absorbent substrate has been estimated by the notifier:
One kilogram of pure dye would be expected to print several million A4 paper sheets of text or
graphics. Under worst-case conditions, each piece of A4 paper could be assumed to incorporate 1 mg
of notified chemical. Based on a 50% transfer on contact when handling printed paper or other
substrate (assuming partially dry ink), and the relative contact area of fingertips and paper size:
Area of contact with finger ends (four fingers on one hand) = 8 cm2
A4 sized paper = ~600 cm2
% Removal = (8/600) ?0.5 ?100 = <1%
Exposure to fingertips per event = <1% of 1 mg = <0.01 mg per event.
For extensive contact with wet ink on paper or other substrate (i.e. >10 events per day) the daily
exposure to the notified chemical, assuming no washing between events, a 70 kg person and
conservative estimate of 100% absorption, would be:
Daily exposure = (<0.01 (mg/event)?0) ?70 = ~0.0014 mg/kg bw/day.
It is not possible to estimate the level of exposure that is expected for the smaller arylamine species
that may be derived from the notified chemical.
Service technicians may occasionally experience skin contact with the notified chemical (<5% in the
ink) during maintenance of inkjet printers. The exposure of these workers is likely to be limited to
contact of inks with their fingertips during the handling and cleaning of printer components.
Therefore, the exposure of these workers is expected to be minimal and infrequent.
6.1.2. Public exposure
The exposure of the public to the notified chemical through the use of inkjet printer inks is expected
to be identical to that experienced by office workers during the changing of cartridges, printing onto
paper and other media, and handling dried, printed pages. Members of the public may be expected to
change inkjet printer cartridges less frequently than would office workers, as domestic applications
are often smaller.
Public exposure through importation, transportation or storage is expected to be negligible. Such
exposure could only occur in the extremely unlikely event of an accident where crates, boxes,
packaging and cartridges were ruptured, liberating inks containing the notified chemical.
6.2. Human health effects assessment
The results from toxicological investigations conducted on the notified chemical are summarised in the
table below. Details of these studies can be found in Appendix B.
Endpoint Result and Assessment Conclusion
Rat, acute oral toxicity LD50 300-600 mg/kg bw: Harmful
Rat, acute dermal toxicity LD50 >2,000 mg/kg bw: Low toxicity
Rabbit, skin irritation Slightly irritating
Rabbit, eye irritation Slightly irritating
Guinea pig, skin sensitisation ?adjuvant test No evidence of sensitisation
Rat, repeat dose oral toxicity ?28 days. NOEL 15 mg/kg bw/day
Genotoxicity ?bacterial reverse mutation Non-mutagenic
Genotoxicity ?in vitro chromosome aberration Genotoxic
Genotoxicity ?in vivo mouse micronucleus test Non-genotoxic
Toxicokinetics, metabolism and distribution:
The notified chemical is likely to be absorbed via the oral route, as indicated by the deaths in the 14-
day oral toxicity study, the signs of toxicity observed in the 28-day repeated dose oral study and the
deaths in the mouse micronucleus assay at the highest dose level. It is not clear if the notified chemical
is absorbed intact or degraded prior to gastrointestinal absorption, perhaps through the action of
intestinal microflora (SCCNFP, 2002). Observations of black urine would support the hypothesis that
it is absorbed and excreted largely unchanged. Significant dermal absorption of the notified chemical
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June 2007 NICNAS
via the dermal route is not expected, based on its low partition coefficient (logPow = -1.89).
The azo linkage is the most labile portion of an azo dye molecule, and it is readily metabolised in
mammals, including man (SCCNFP, 2002). Liver azo reductase enzymes reductively cleave the
molecule into component amines. Some metabolism may also occur in other cells, in particular those
of the bladder wall, and during percutaneous absorption. Anaerobic intestinal bacteria are also capable
of catalysing reductive cleavage of the azo bond. On this basis, azo dyes should be assessed for
toxicity and classified similarly to their component amines (DFG, 1988, quoted in Golka et al, 2004).
Bacterial skin microflora have been reported to be able to break down azo dyes into smaller amine
species through azo reduction, and these may be more readily absorbed through the skin than would
the parent dye (SCCNFP, 2002).
The notified chemical is likely to have only limited potential for broad physiological distribution once
absorbed, due to its polarity. Ultimately, the metabolites of azo dyes are excreted in the urine and bile
(Brown and DeVito, 1993, referenced in 豯lgaard et al, 1998). Supporting this prediction for the
notified chemical is the black-stained urine and faeces that were observed in both of the oral gavage
studies.
General toxicity:
The notified chemical displayed moderate acute oral toxicity (LD50 = 300-600 mg/kg bw), inferred
from the result of the 14-day rat oral gavage study, and a dose of 750 mg/kg bw killed two of seven
mice within 24 hours during the micronucleus assay. Low dermal toxicity (LD50 >2,000 mg/kg bw)
was observed in rats.
The NOEL in a 28-day oral repeat dose study in rats was 15 mg/kg bw/day, based on the absence of
any treatment-related effects at this dose level. In this study, the adverse effects of the notified
chemical at 150 mg/kg bw/day on the spleen persisted until the end of the 14-day treatment-free
period. Treatment-related effects in the two oral gavage studies either caused death within 24 hours
(600 mg/kg bw) or took several days of treatment to manifest (150 mg/kg bw), which appears to
indicate a dose-dependent mode of toxicity.
Toxicity for reproduction:
In the rat 28-day oral repeat dose study, a slow-onset testicular atrophy was observed in male rats
treated with 150 mg/kg bw/day Bonjet Black 817-E. This was observed in only two males of the
treatment group (at the end of the treatment period), but in all males of the corresponding 14-day
recovery group, with worsening severity. This suggests that continuing testicular damage, possibly
irreversible, was initiated during treatment that was not apparent until weeks later in the majority of
exposed individuals. The nature of the testicular damage that was induced by the notified chemical is
not known.
Irritation and Sensitisation:
The notified chemical was slightly irritating to both rabbit eye and rabbit skin.
The notified chemical was not found to be sensitising in a guinea pig maximisation test. Supporting
this finding is the absence of structural moieties within the notified chemical that are known alerts for
sensitisation (Barratt et al, 1994), and it lacks of similarity with other azo dyes that are known to be
skin sensitisers in humans (豯lgaard et al, 1998).
Mutagenicity:
Azo dyes as a class are a concern for their potential induction of mutagenicity and carcinogenicity
(Combes and Haveland-Smith, 1982). Reductive cleavage or degradation into component aromatic
amines is one of the mechanisms leading to the genotoxicity of azo dyes (SCCNFP, 2002). The
aromatic amines that arise from the azo reduction and cleavage of azo dyes are thought to be activated
as mutagens through their N-oxidation by cytochrome P450 isozymes. The N-hydroxylarylamines that
are formed may be further glucuronated (activated) or acetylated (inactivated), which may influence
their mutagenicity (Bartsch, 1981). Under acidic pH, they form reactive nitrenium ions that can
alkylate bases in DNA, particularly the nucleophilic centres in guanine. This mechanism is thought to
contribute to the carcinogenicity of many azo dyes, and as a result, azo dyes should be assessed for
toxicity and classified similarly to their component amines (DFG, 1988, quoted in Golka et al, 2004).
The notified chemical is not expected to be reductively cleaved to release any of the restricted
aromatic amines specified in either the Appendix to EC Directive 76/769/EEC (EC, 2004) or the
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June 2007 NICNAS
annexes of EU SCCNFP/0495/01 (SCCNFP, 2002). However, the notified chemical can be broken by
azo reduction into arylamine species which resemble these, and which could potentially be mutagenic.
The structure of one of these arylamine species resembles a known human carcinogen (SCCNFP,
2002; RoC, 2005). The structural modification of this species does not indicate that it may be of lower
concern as potential carcinogen (SCCNFP, 2002; US EPA, 2002). In addition, a second azo reduction
product may have the potential to be genotoxic, based on a plethora of published mutagenicity data for
analogous chemicals.
The notifier supplied test results showing that Bonjet Black 817-E was found to be non-mutagenic in
bacteria (under the conditions of the Ames test used), but it induced chromosomal aberrations in
mammalian cells in vitro. In an in vivo mouse micronucleus study, Bonjet Black 817-E did not
significantly increase the formation of micronuclei in bone marrow polychromatic erythrocytes.
Azo dyes are renowned for their content of impurities, particularly for the presence of component
arylamines (SCCNFP, 2002; 豯lgaard et al, 1998). The identity of these species is known for Bonjet
Black 818. The identified impurities are likely either to display similar genotoxic properties to the
notified chemical, or to have a lower propensity for genotoxicity.
Overall, the available data does not rule out the notified chemical as a possible carcinogen. In general,
the degree of correlation between mutagenicity study results and the carcinogenicity of azo dyes as a
class is poor, likely due to their complex metabolism in vivo (Brown and DeVito, 1993, referenced in
豯lgaard et al, 1998).
Hazard classification:
Based on the 14-day and 28-day oral gavage studies, the notified chemical is classified as hazardous
under the NOHSC Approved Criteria for Classifying Hazardous Substances.
R22 Harmful if swallowed
R48/22 Harmful: Danger of serious damage to health by prolonged exposure if swallowed
R62 Possible risk of impaired fertility
6.3. Human health risk characterisation
6.3.1. Occupational health and safety
The notified chemical will be imported in pre-packed sealed cartridges. In addition, the notified
chemical is present in the ink at <5%, and is not likely to be toxic at the highest levels of probable
exposure (worst-case exposure estimate of ~0.0014 mg/kg bw/day, compared with a NOEL of
15 mg/kg bw/day). Therefore, discounting any possibility of a risk from carcinogenicity, the
expected risk of the notified chemical to the health and safety of workers is expected to be minimal.
During most operations, the probable exposure of workers to the notified chemical is expected to be
low, and thus the probable OHS risk is likely to be low. Transport, storage and retail workers are
unlikely to be exposed to the notified chemical except when cartridges are accidentally breached.
There is low potential for office workers to be exposed to the notified chemical when replacing spent
cartridges, as the notified chemical is sealed within the cartridge, and the cartridges are designed to
prevent leakage. Service technicians will generally experience only infrequent exposure to the
notified chemical, at levels below the levels of exposure indicated by the worst-case estimate above.
Likewise, the exposure of workers to the notified chemical on dried, printed paper is expected to be
low, as the dye should remain bound within the ink matrix. Therefore, the risk to workers handling
dried inkjet prints containing the notified chemical is expected to be minimal if not negligible.
However, the OHS risk of the notified chemical cannot be established without a consideration of its
likelihood of degradation into potentially carcinogenic aromatic amines. Breakdown of similar azo
dyes to the notified chemical has been reported, following their exposure to heat or sunlight (Brown
and DeVito, 1993, referenced in 豯lgaard et al 1998). Given that inkjet prints are likely to be
exposed to light for prolonged periods, and that preparations of the notified chemical may already
contain traces of aromatic amine species, the risk presented by these species must be considered.
Chemicals which may release specific carcinogenic amines (as specified the Appendix of EU
SCCNFP/0495/01) upon azo reduction are restricted in the EU (SCCNFP, 2002):
"Azo-dyes that may release, by reductive cleavage of one or more azo groups, one or
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June 2007 NICNAS
more of the aromatic amines listed in Appendix, in concentrations above 30 ppm in the
finished articles, according to the testing method specified in Appendix, may not be used
in textile and leather articles which have the potential of coming into direct and
prolonged contact with the human skin or oral cavity."
While the notified chemical is not expected to break down into one of the SCCNFP-specified
arylamines, it is expected to break down into species that resemble these arylamines. These species
may have very different properties to the notified chemical, and they may not be as readily bound,
for example, within the matrices of a dried inkjet print. It is not possible to derive any conclusions
without greater knowledge of their properties. Nevertheless, the expected exposure to these species is
expected to be less than that specified by the SCCNFP (30 ppm), and is likely to be less frequent
than "direct and prolonged". Therefore, the risk from these breakdown species is expected to be low.
6.3.2. Public health
The exposure and hazard of the notified chemical to the members of the public during the use of
inkjet printers are expected to be identical or similar to that experienced by office workers.
Therefore, the risk of the notified chemical to the health of the public is assessed to be low. The
unlikely but potential public exposure through accidents during importation, transportation or
storage is assessed as negligible.
7. ENVIRONMENTAL IMPLICATIONS
7.1. Environmental Exposure & Fate Assessment
7.1.1 Environmental Exposure
RELEASE OF CHEMICAL AT SITE
The chemical is imported and sold within a printer cartridge, with no reformulation or repackaging
in Australia. No release of the notified chemical will occur except in the unlikely event of spills,
where the cartridge is ruptured.
RELEASE OF CHEMICAL FROM USE
During use, the notified chemical will be fixed to the paper substrate. At the end of the paper
substrate's useful life, it will be disposed of or recycled. During paper recycling it will be de-inked
with some of the notified chemical being adsorbed to the pulp and the remainder released to trade
waste sewers. The pulp containing some of the ink will be manufactured into lower grade paper and
cardboard products, which will likewise be disposed of or recycled.
It is expected that up to 0.5% (5 kg per annum) of the ink containing the notified chemical will
remain in the printer cartridge. Most will be disposed as household waste, however approximately
20% is expected to be sent for cartridge recycling. The inks may be incorporated into low-grade
inks for colouring items such as recycled plastic products. At the end of these plastic products'
useful lives, they will likely be discarded.
RELEASE OF CHEMICAL FROM DISPOSAL
Paper substrates having the notified chemical fixed thereon will be disposed of to landfill, recycled
or possibly incinerated. During recycling, some of the notified chemical will be released to sewer.
In the sewage treatment plant (STP) some will adsorbed to sludge for disposal by landfill or
possibly incineration, with the remainder going to sewage outfall. Most of the residue in empty
cartridges will be disposed to landfill. If the ink is recycled to low-grade ink and incorporated into
recycled products, then it is likely to be disposed of to landfill at the end of the recycled products'
useful lives.
FULL PUBLIC REPORT: STD/1242 Page 9 of 30
June 2007 NICNAS
7.1.2 Environmental fate
For the details of the environmental fate studies please refer to Appendix C.
The notified chemical as a component of ink is expected to remain fixed to the paper for its useful life.
Assuming that 0.5% of the chemical will remain in empty cartridges, then 99.5% (995 kg per annum)
will be used for its intended purpose as ink. Approximately 50% of paper (NOLAN-ITU, 2001) is
recycled meaning ~500 kg will be disposed during paper recycling. This is likely to occur at recycling
plants throughout Australia over 260 working days. Assuming a worse case scenario where none of
the chemical adsorbs to pulp or sludge, then a Predicted Environmental Concentration (PEC) is
calculated as 0.47 礸/L at sewage outfall (see table below). The remainder of the paper products will
be landfilled or possibly incinerated. Residual chemical in the empty cartridges will be landfilled or
recycled, with any recycled product likely to also be landfilled and the end of its useful life. In
landfill, the notified chemical is likely to be mobile based on its Koc value, once the paper substrate or
cartridge has degraded. It is expected to eventually degrade by biotic and abiotic processes to landfill
gases including methane, ammonia, hydrogen sulphide, oxides of carbon, nitrogen and sulphur; and
phosphates and water vapour. During incineration, the notified chemical is expected to be combusted
to phosphates, oxides of sulphur, nitrogen and carbon, and water vapour.
7.1.3 Predicted Environmental Concentration (PEC)
Predicted Environmental Concentration (PEC) for the Aquatic Compartment
Total Annual Import/Manufactured Volume 1,000 kg/year
Proportion expected to be released to sewer 50 %
Annual quantity of chemical released to sewer 500 kg/year
Days per year where release occurs 260 days/year
Daily chemical release: 1.92 kg/day
Water use 200 L/person/day
Population of Australia (Millions) 20.496 million
Removal within STP 0 %
Daily effluent production: 4,099 ML
Dilution Factor - River 1.0
Dilution Factor - Ocean 10.0
PEC - River: 0.47 礸/L
PEC - Ocean: 0.05 礸/L
7.2. Environmental effects assessment
Details of these studies can be found in Appendix C.
Endpoint Result Assessment Conclusion
Fish Toxicity EC50 >100 mg/L Non-toxic
Daphnia Toxicity EC50 >100 mg/L Non-toxic
Algal Toxicity ErC50 11 mg/L Moderately toxic
Inhibition of Bacterial Respiration EC50 >1,000 mg/L Non-toxic
7.2.1 Predicted No-Effect Concentration
A PNEC of 110 礸/L was calculated from the lowest EC50 for algae and dividing by a safety
(assessment) factor of 100, as toxicity data are available for three trophic levels.
Predicted No-Effect Concentration (PNEC) for the Aquatic Compartment
Assessment Factor 100
PNEC 110 礸/L
FULL PUBLIC REPORT: STD/1242 Page 10 of 30
June 2007 NICNAS
7.3. Environmental risk assessment
Risk Assessment PEC (礸/L) PNEC (礸/L) Q
Q - River: 0.47 110 <0.01
Q - Ocean: 0.05 110 <0.01
The risk quotient for sewage outfall is <0.01. Although some of the notified chemical may be
released from landfill into waterways, due the chemical's low ecotoxicity, it is unlikely to pose a risk
to the aquatic environment. Consequently, the notified chemical is not expected to pose an
unacceptable risk to the environment.
8. CONCLUSIONS ?SUMMARY OF RISK ASSESSMENT FOR THE ENVIRONMENT AND
HUMAN HEALTH
8.1. Hazard classification
Based on the available data the notified chemical is classified as hazardous under the NOHSC
Approved Criteria for Classifying Hazardous Substances. The classification and labelling details are:
R2 Risk of explosion by shock, friction, fire or other sources of ignition
R22 Harmful if swallowed
R48/22 Harmful: Danger of serious damage to health by prolonged exposure if swallowed
R51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
environment
R62 Possible risk of impaired fertility
S35 This material and its container must be disposed of in a safe way.
S36/37 Wear suitable protective clothing and gloves
S61 Avoid release to the environment. Refer to special instructions/safety data sheets.
and
As a comparison only, the classification of the notified chemical using the Globally Harmonised
System for the Classification and Labelling of Chemicals (GHS) (United Nations 2003) is presented
below. This system is not mandated in Australia and carries no legal status but is presented for
information purposes.
Hazard category Hazard statement
Human Health 4 Harmful if swallowed
Human Health 1B May damage fertility
Environment Acute 3 Hazardous to the aquatic environment
8.2. Human health risk assessment
8.2.1. Occupational health and safety
Under the conditions of the occupational settings described, the risk to workers is considered
acceptable.
8.2.2. Public health
When used in the proposed manner the risk to the public is considered acceptable.
8.3. Environmental risk assessment
On the basis of the PEC/PNEC ratio, the chemical is not considered to pose a risk to the environment
based on its reported use pattern.
FULL PUBLIC REPORT: STD/1242 Page 11 of 30
June 2007 NICNAS
9. MATERIAL SAFETY DATA SHEET
The MSDS of the notified chemical and product containing the notified chemical provided by the
notifier were reviewed by NICNAS and are published here as a matter of public record. The
accuracy of the information on the MSDS remains the responsibility of the applicant. The MSDS
were found to be in accordance with the NOHSC National Code of Practice for the Preparation of
Material Safety Data Sheets (NOHSC 2003).
10. RECOMMENDATIONS
REGULATORY CONTROLS
Hazard Classification and Labelling
? The Office of the ASCC, Department of Employment and Workplace Relations (DEWR),
should consider the following health, environmental and physicochemical hazard
classifications for the notified chemical:
- R2 Risk of explosion by shock, friction, fire or other sources of ignition
- R22 Harmful if swallowed
- R48/22 Harmful: Danger of serious damage to health by prolonged exposure if
swallowed
- R51/53 Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic
environment
- R62 Possible risk of impaired fertility
- S35 This material and its container must be disposed of in a safe way.
- S36/37 Wear suitable protective clothing and gloves
- S61 Avoid release to the environment. Refer to special instructions/safety data
sheets.
CONTROL MEASURES
Occupational Health and Safety
? A copy of the MSDS should be easily accessible to employees.
? Service personnel should wear cotton or disposable gloves during routine maintenance and
repairs of inkjet printers.
? If products and mixtures containing the notified chemical are classified as hazardous to
health in accordance with the NOHSC Approved Criteria for Classifying Hazardous
Substances, workplace practices and control procedures consistent with provisions of State
and Territory hazardous substances legislation must be in operation.
Public Health
? Products containing the notified chemical should be labelled with the following safety
direction:
- Avoid skin or eye contact with ink.
Disposal
? The notified chemical should be disposed of by as domestic waste.
Emergency procedures
? Spills or accidental release of the notified chemical should be handled by soaking up with
damp cloth and placing in a suitable container for disposal. For large spills physically
contain (by diking, etc.) and adsorb with inert material (sand, vermiculite etc) and place in
suitable container for disposal.
FULL PUBLIC REPORT: STD/1242 Page 12 of 30
June 2007 NICNAS
11. REGULATORY OBLIGATIONS
This risk assessment is based on the information available at the time of notification. The Director
may call for the reassessment of the chemical under secondary notification provisions based on
changes in certain circumstances. Under Section 64 of the Industrial Chemicals (Notification and
Assessment) Act (1989) the notifier, as well as any other importer or manufacturer of the notified
chemical, have post-assessment regulatory obligations to notify NICNAS when any of these
circumstances change. These obligations apply regardless of whether the notified chemical has been
listed on the Australian Inventory of Chemical Substances (AICS).
Therefore, the Director must be notified in writing within 28 days by the notifier, other importer or
manufacturer:
(1) Under Section 64(1) of the Act; if
- the importation volume exceeds one tonne per annum notified chemical; or
- if the notified chemical is imported in any fashion other than within an inkjet ink
cartridge.
- any additional mutagenicity test data is to be provided to NICNAS when it is available.
(2) Under Section 64(2) of the Act; if
- the function or use of the chemical as a component of inkjet printer inks has changed,
or is likely to change significantly;
- the amount of chemical being introduced has increased, or is likely to increase,
significantly;
- if the chemical has begun to be manufactured in Australia;
- additional information has become available to the person as to an adverse effect of the
chemical on occupational health and safety, public health, or the environment.
The Director will then decide whether a reassessment (i.e. a secondary notification and assessment)
is required.
12 . BIBLIOGRAPHY
Bartsch H (1981) Metabolic Activation of Aromatic Amines and Azo Dyes. IARC Sci Publ. (40):13-30.
Barratt MD, Basketter DA, Chamberlain M, Admans GD and Langowski JJ (1994) An Expert System Rulebase
For Identifying Contact Allergens. Toxic. in vitro. 8(5):1053-1060.
Brown MA and DeVito SC (1993). Predicting Azo Dye Toxicity. Critical Reviews in Environmental Science
and Technology. 23(3):249-324.
Combes RD, Haveland-Smith RB (1982) A Review of the Genotoxicity of Food, Drug and Cosmetic Colours
and Other Azo, Triphenylmethane and Xanthene dyes. Mutat Res. 98(2):101-248.
DFG (1988) Deutsche Forschungsgemeinschaft. List of MAK and BAT Values 1988. VCH Publishers,
Weinheim.
EC (2004) EC Directive 76/769/EEC, Office for Official Publications of the European Communities
http://europa.eu.int/comm/enterprise/chemicals/legislation/markrestr/consolid_1976L0769_en.pdf
EHC 51 (1982) Environmental Health Criteria 51, International Programme on Chemical Safety, Guide to Short-
Term Tests for Detecting Mutagenic and Carcinogenic Chemicals. World Health Organization, Geneva.
http://www.inchem.org/documents/ehc/ehc/ehc51.htm.
FORS (Federal Office of Road Safety) (1998) Australian Code for the Transport of Dangerous Goods by Road
and Rail (ADG code), 6th Edition, Canberra, Australian Government Publishing Service
Golka K, Kopps S and Myslak ZW (2004). Carcinogenicity of Azo Colorants: Influence of Solubility and
Bioavailability. Toxicol Lett. 151(1):203-10.
NOHSC (1994) National Code of Practice for the Labelling of Workplace Substances [NOHSC:2012(1994)].
National Occupational Health and Safety Commission, Canberra, Australian Government Publishing
Service.
FULL PUBLIC REPORT: STD/1242 Page 13 of 30
June 2007 NICNAS
NOHSC (2004) Approved Criteria for Classifying Hazardous Substances, 3rd edition [NOHSC:1008(2004)].
National Occupational Health and Safety Commission, Canberra, AusInfo.
NOHSC (2003) National Code of Practice for the Preparation of Material Safety Data Sheets, 2nd edition
[NOHSC:2011(2003)]. National Occupational Health and Safety Commission, Canberra, Australian
Government Publishing Service.
NOLAN-ITU (2001) National Packaging Covenant Council, Independent Assessment of Kerbside Recycling in
Australia Revised Final Report - Volume I, NOLAN-ITU Pty Ltd.
豯lgaard H, Frost L, Galster J and Hansen OC (1998). Survey Of Azo-Colorants In Denmark: Consumption,
Use, Health And Environmental Aspects. Danish Technological Institute, Environment, Danish
Environmental Protection Agency.
Prival MJ and Mitchell VD (1982) Analysis Of A Method For Testing Azo Dyes For Mutagenic Activity In
Salmonella Typhimurium In The Presence Of Flavin Mononucleotide And Hamster Liver S9. Mutat Res.
97(2): 103-16.
RoC (2005) Report on Carcinogens, Eleventh Edition; U.S. Department of Health and Human Services, Public
Health Service, National Toxicology Program.
Safepharm (1997a) Bonjet Black 817-E: Twenty-eight Day Repeat Dose Oral (Gavage) Toxicity Study in the
Rat. Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/208) (unpublished
report provided by the notifier)
Safepharm (1997b) Bonjet Black 817-E: Acute Eye Irritation Test in the Rabbit. Safepharm Laboratories
Limited, Derby, United Kingdom (Project Number: 370/206) (unpublished report provided by the notifier)
Safepharm (1997c) Bonjet Black 817-E: Magnusson & Kligman Maximisation Study in the Guinea Pig.
Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/207) (unpublished report
provided by the notifier)
Safepharm (2000a) Bonjet Black 817-E: Determination of General Physico-chemical Properties. Safepharm
Laboratories Limited, Derby, United Kingdom (Project Number: 370/260) (unpublished report provided by
the notifier)
Safepharm (2000b) Bonjet Black 817-E: Determination of Vapour Pressure. Safepharm Laboratories Limited,
Derby, United Kingdom (Project Number: 370/261) (unpublished report provided by the notifier)
Safepharm (2000c) Bonjet Black 817-E: Determination of Hazardous Physico-chemical Properties. Safepharm
Laboratories Limited, Derby, United Kingdom (Project Number: 370/262) (unpublished report provided by
the notifier)
Safepharm (2000d) Bonjet Black 817-E: Acute Dermal Toxicity (Limit Test) in the Rat. Safepharm Laboratories
Limited, Derby, United Kingdom (Project Number: 370/264) (unpublished report provided by the notifier)
Safepharm (2000e) Bonjet Black 817-E: Acute Dermal Irritation Test in the Rabbit. Safepharm Laboratories
Limited, Derby, United Kingdom (Project Number: 370/265) (unpublished report provided by the notifier)
Safepharm (2000f) Bonjet Black 817-E: Reverse Mutation Assay "Ames Test" Using Salmonella typhimurium
and Escerichia coli. Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/267)
(unpublished report provided by the notifier)
Safepharm (2000g) Bonjet Black 817-E: Assessment of Ready Biodegradability; CO2 Evolution Test.
Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/271) (unpublished report
provided by the notifier)
Safepharm (2000h) Bonjet Black 817-E: Acute Toxicity to Rainbow Trout (Oncorhynchus mykiss). Safepharm
Laboratories Limited, Derby, United Kingdom (Project Number: 370/268) (unpublished report provided by
the notifier)
Safepharm (2000i) Bonjet Black 817-E: Acute Toxicity to Daphnia Magna. Safepharm Laboratories Limited,
Derby, United Kingdom (Project Number: 370/269) (unpublished report provided by the notifier)
Safepharm (2000j) Bonjet Black 817-E: Inhibition of Algal Growth Caused by Coloured Substances. Safepharm
Laboratories Limited, Derby, United Kingdom (Project Number: 370/270) (unpublished report provided by
the notifier)
FULL PUBLIC REPORT: STD/1242 Page 14 of 30
June 2007 NICNAS
Safepharm (2000k) Bonjet Black 817-E: Assessment of the Inhibitory Effect on the Respiration of Activated
Sewage Sludge. Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/272)
(unpublished report provided by the notifier)
Safepharm (2001) Bonjet Black 817-E: Chromosome Aberration Test in Human Lymphocytes In Vitro.
Safepharm Laboratories Limited, Derby, United Kingdom (Project Number: 370/266) (unpublished report
provided by the notifier)
Safepharm (2005) Bonjet Black 817-E: Micronucleus Test in the Mouse. Safepharm Laboratories Limited,
Derby, United Kingdom (Project Number: 370/336) (unpublished report provided by the notifier)
SCCNFP (2002) The Safety Review Of The Use Of Certain Azo-Dyes In Cosmetic Products: Opinion Of The
Scientific Committee On Cosmetic Products And Non-Food Products Intended For Consumers..
SCCNFP/0495/01 (prepared in the context of Directive 76/768/EEC).
United Nations (2003) Globally Harmonised System of Classification and Labelling of Chemicals (GHS).
United Nations Economic Commission for Europe (UN/ECE), New York and Geneva.
US EPA (2002). TSCA New Chemicals Program (NCP) Chemical Categories.
http://www.epa.gov/opptintr/newchems/pubs/cat02.htm.
FULL PUBLIC REPORT: STD/1242 Page 15 of 30
June 2007 NICNAS
Appendix A: Physico-Chemical Properties
All physicochemical properties (except where otherwise noted) were determined for a mixture of two chemicals,
Bonjet Black 817-E, equivalent to Bonjet Black 818. Where a property was determined for the notified chemical
alone, HPLC was used to separate the isomers.
Decomposed without melting from 175篊
Melting Point/Boiling Point
OECD TG 102 Melting Point/Melting Range.
METHOD
EC Directive 92/69/EEC A.1 Melting/Freezing Temperature.
Remarks Measured using differential scanning calorimetry.
TEST FACILITY Safepharm (2000a)
1,420 kg/m3 at 21?.5篊
Density
OECD TG 109 Density of Liquids and Solids.
METHOD
EC Directive 92/69/EEC A.3 Relative Density.
Remarks Measured using a gas comparison pycnometer.
TEST FACILITY Safepharm (2000a)
5.2?0-8 kPa at 25篊
Vapour Pressure
OECD TG 104 Vapour Pressure.
METHOD
EC Directive 92/69/EEC A.4 Vapour Pressure.
Remarks Determined using a vapour pressure balance. The balance readings were low and
variable. Consequently, the reading, which gave the highest reliable vapour
pressure, was chosen. (A slope of -1500 K was imposed for that run which was
most likely to have been fully degassed).
TEST FACILITY Safepharm (2000b)
54.2 g/L at 20?.5篊
Water Solubility
OECD TG 105 Water Solubility.
METHOD
EC Directive 92/69/EEC A.6 Water Solubility.
Remarks Flask Method. Determined for the notified chemical, not for the mixture, Bonjet
Black 817-E. The solution pH was determined to be 7.14-7.18.
TEST FACILITY Safepharm (2000a)
t?>1 year at 25篊 (pH 4, 7, 9)
Hydrolysis as a Function of pH
OECD TG 111 Hydrolysis as a Function of pH.
METHOD
EC Directive 92/69/EEC C.7 Degradation: Abiotic Degradation: Hydrolysis as a
Function of pH.
t?br>
pH T (癈)
4 25 >1 year
7 25 >1 year
9 25 >1 year
Remarks A preliminary test at 50癈 showed less than 10% hydrolysis after 5 days. This is
equivalent to a half-life of >1 year at 25癈.
Determined for the notified chemical, not for the mixture Bonjet Black 817-E.
TEST FACILITY Safepharm (2000a)
log Pow = -1.89 at 24?.5篊
Partition Coefficient (n-octanol/water)
OECD TG 117 Partition Coefficient (n-octanol/water).
METHOD
EC Directive 92/69/EEC A.8 Partition Coefficient.
Remarks Shake Flask Method. The pH of the solution was 6.95.
Determined for the notified chemical, not for the mixture Bonjet Black 817-E.
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June 2007 NICNAS
TEST FACILITY Safepharm (2000a)
60.1 mN/m at 22.0篊
Surface Tension
OECD TG 115 Surface Tension of Aqueous Solutions.
METHOD
EC Directive 92/69/EEC A.5 Surface Tension.
Remarks Determined using the ring method and a notified chemical concentration of
1.02 g/L. The notified chemical was not considered to be surface-active.
TEST FACILITY Safepharm (2000a)
Adsorption/Desorption log Koc <1.25 at 40癈
OECD TG 106 Adsorption - Desorption Using a Batch Equilibrium Method.
METHOD
Remarks Determined for the notified chemical, not for the mixture Bonjet Black 817-E. The
notified chemical eluted before the reference substances.
TEST FACILITY Safepharm (2000a)
Not determined. QSAR estimates provided.
Dissociation Constant
Remarks The notified chemical contains numerous ionisable groups, making direct
measurement of its dissociation constants impractical. The notifier has provided
estimates derived using QSAR modelling (method unspecified), and the pKa values
for different groups ranged from ?.53 to 11.74.
Particle Size
OECD TG 110 Particle Size Distribution/Fibre Length and Diameter
METHOD
Distributions.
Mass (%)
Range (祄)
<100 祄 54.3
<10 祄 19.3
The inhalable fraction (<100 祄) was determined by sieve, and the respirable
Remarks
fraction was determined using a cascade impactor. Too few particles were present
to allow accurate assessment of the mass median aerodynamic diameter (MMAD).
TEST FACILITY Safepharm (2000a)
Not highly flammable
Flammability
EC Directive 92/69/EEC A.10 Flammability (Solids).
METHOD
Remarks The pile of Bonjet Black 817-E failed to ignite during 2 minutes' application of a
bunsen flame.
TEST FACILITY Safepharm (2000c)
342篊
Autoignition Temperature
92/69/EEC A.16 Relative Self-Ignition Temperature for Solids.
METHOD
Remarks The test cube contained black charred material at the conclusion of the test.
TEST FACILITY Safepharm (2000c)
Not expected to be explosive
Explosive Properties
Estimated, based on the structural formula.
METHOD
TEST FACILITY Safepharm (2000c)
Not oxidising
Oxidising Properties
EC Directive 92/69/EEC A.17 Oxidizing Properties (Solids).
METHOD
FULL PUBLIC REPORT: STD/1242 Page 17 of 30
June 2007 NICNAS
Remarks Mixtures of the notified chemical and cellulose failed to support combustion.
TEST FACILITY Safepharm (2000c)
Mean moisture content = 8.368% (w/w)
Moisture Content
Measured gravimetrically. ~1 g of the notified chemical was weighed into loss
METHOD
bottles and heated to 105篊. The loss of mass was considered due to lost moisture.
TEST FACILITY Safepharm (2000c)
FULL PUBLIC REPORT: STD/1242 Page 18 of 30
June 2007 NICNAS
Appendix B: Toxicological Investigations
All toxicological investigations were performed using a mixture of two chemicals, Bonjet Black 817-E,
equivalent to Bonjet Black 818.
B.1. Acute toxicity ?oral
The notified chemical displayed moderate acute oral toxicity, inferred from the result of the 14-
day rat oral gavage study (see below; Safepharm, 1997a). In this study, an LD50 of 300-600
mg/kg bw was implied in rats, based on less than 50% survival after a single dose of 600 mg/kg
bw, and >50% survival at 300 mg/kg bw/day. From these results, Bonjet Black 817-E is
considered harmful following an acute oral exposure.
B.2. Acute toxicity ?dermal
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 402 Acute Dermal Toxicity ?Limit Test.
METHOD
EC Directive 92/69/EEC B.3 Acute Toxicity (Dermal) ?Limit Test.
Species/Strain Rat/Sprague-Dawley Crl:CD BR
Vehicle Distilled water
Type of dressing Semi-occlusive.
Remarks - Method No significant protocol deviations.
RESULTS
Group Number and Sex of Animals Dose (mg/kg bw) Mortality
1 5M, 5F 2,000 0
LD50 >2,000 mg/kg bw
Signs of Toxicity - Local Very slight erythema and small superficial scattered scabs were observed
in female animals only. Black-stained fur was noted in all animals one to
four days after dosing.
Signs of Toxicity - Systemic No signs of systemic toxicity were noted.
Effects in Organs No abnormalities were noted at necropsy.
Remarks - Results None.
The test substance is of low toxicity via the dermal route.
CONCLUSION
TEST FACILITY Safepharm (2000d)
B.3. Irritation ?skin
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 404 Acute Dermal Irritation/Corrosion.
METHOD
EC Directive 92/69/EEC B.4 Acute Toxicity (Skin Irritation).
Species/Strain Rabbit/New Zealand White
Number of Animals Three males
Vehicle Distilled water
Observation Period 7 days
Type of Dressing Semi-occlusive
Remarks - Method No significant protocol deviations.
FULL PUBLIC REPORT: STD/1242 Page 19 of 30
June 2007 NICNAS
RESULTS
Mean Score* Maximum
Maximum Maximum Value at End
Lesion Animal No. Duration of Any
Value of Observation Period
Effect
1 2 3
Erythema/Eschar 0 1 0 1 72 hours 0
Oedema 0 0 0 0 - 0
* Calculated on the basis of the scores at 24, 48, and 72 hours for EACH animal.
Remarks - Results Very slight erythema was observed in all animals 1 hour after treatment.
Grey/green skin staining was observed at all treated sites. Loss of skin
elasticity was observed in one animal at 72 hours, but this had reversed
by 7 days. No corrosive effects were observed.
The test substance was slightly irritating to the skin.
CONCLUSION
TEST FACILITY Safepharm (2000e)
B.4. Irritation ?eye
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 405 Acute Eye Irritation/Corrosion.
METHOD
EC Directive 92/69/EEC B.5 Acute Toxicity (Eye Irritation).
Species/Strain Rabbit/New Zealand White
Number of Animals Three (2 males, 1 female)
Observation Period 7 days
Remarks - Method A significant initial pain reaction was observed upon instillation of the
test substance into the eye of Animal No. 1. Therefore, one drop of local
anaesthetic eye drops was administered to both eyes of the following two
animals before the test substance was administered.
RESULTS
Mean Score* Maximum
Maximu Maximum Value at End
Lesion Animal No. Duration of Any
m Value of Observation Period
Effect
1 2 3
Conjunctiva: redness 1.3 1.0 1.0 2 72 hours 0
Conjunctiva: chemosis 0.3 0.3 0.3 2 24 hours 0
Conjunctiva: discharge 0 0 0 2 1 hour 0
Corneal opacity 0 0 0 0 - 0
Iridial inflammation 0 0 0 0 - 0
* Calculated on the basis of the scores at 24, 48, and 72 hours for EACH animal.
Remarks - Results Residual test material was observed around the treated eyes of all animals
throughout the study.
Dark purple-coloured staining was observed in all treated eyes during the
study, which prevented accurate evaluation of corneal or iridial effects
one hour after treatment. This staining also prevented scoring of
conjunctival redness in two treated eyes one hour after treatment.
The test substance was slightly irritating to the eye.
CONCLUSION
TEST FACILITY Safepharm (1997b)
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June 2007 NICNAS
B.5. Skin sensitisation
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 406 Skin Sensitisation ?Maximisation Study.
METHOD
EC Directive 96/54/EC B.6 Skin Sensitisation - Maximisation Study.
Species/Strain Guinea pig/albino Dunkin Hartley
Maximum Non-irritating Concentration:
PRELIMINARY STUDY
intradermal: 5% (w/v) in distilled water
topical: 25% (w/v) in distilled water
MAIN STUDY
Number of Animals Test Group: 10 males Control Group: 5 males
Induction Concentration:
INDUCTION PHASE
intradermal: 5% (w/v) in distilled water or 1:1 distilled water/FCA mix
topical: 10% (w/v) in distilled water
Signs of Irritation The intradermal injection sites could not be evaluated due to the degree of
staining induced by the test material. Very slight erythema was noted at
the intradermal injection site of one control animal at 24 hours.
CHALLENGE PHASE
1st challenge topical: 10% and 5% in water
Remarks - Method No significant protocol deviations.
RESULTS
Challenge Number of Animals Showing Skin Reactions from challenge after:
Animal
Concentration
24 h 48 h
Test Group 10% 0 0
5% 0 0
Control Group 10% 0 0
5% 0 0
Remarks - Results No skin reactions were observed at the 24- or 48-hour observations.
There was no evidence of reactions indicative of skin sensitisation to the
CONCLUSION
test substance under the conditions of the test.
TEST FACILITY Safepharm (1997c)
B.6. Repeat dose toxicity (14 day)
TEST SUBSTANCE Bonjet Black 817-E
14-day oral (gavage) range-finding toxicity study of the 28-day oral
METHOD
toxicity study.
Species/Strain Rat/Sprague-Dawley Crl:CD BR
Vehicle Distilled water
Exposure Information Total exposure days: 14 days
Dose regimen: 7 days per week
Post-exposure observation period: None
Remarks - Method The test material (10 mL at various concentrations) was administered to
each animal for up to 14 consecutive days, by gavage. Control animals
were treated with only 10 mL distilled water. An additional control group
was used as a preliminary study, concurrently with the 150 mg/kg bw/day
group.
At the end of the treatment period, all surviving animals were sacrificed
and subjected to an external and internal macroscopic examination.
FULL PUBLIC REPORT: STD/1242 Page 21 of 30
June 2007 NICNAS
RESULTS
Group Number and Sex of Dose Mortality
Animals (mg/kg bw/day)
1 (control) 3M, 3F 0 0
2 3M, 3F 150 0
3 (control) 3M, 3F 0 0
4 3M, 3F 300 1F (day 5), 1F (day 8)*
5 3M, 3F 600 1M, 3F (day 2)**
* After the second death at 300 mg/kg bw/day, the surviving animals of this group were sacrificed on day
8.
** The two surviving animals treated with 600 mg/kg bw/day were sacrificed on day 2.
LD50 300-600 mg/kg bw (based on less than 50% survival after a single dose
of 600 mg/kg bw, and >50% survival at 300 mg/kg bw/day)
Signs of Toxicity No clinical signs were observed in animals treated at 150 mg/kg bw/day.
Black-stained or dark faeces were observed in animals of both 150 and
300 mg/kg bw/day dose groups, but this was considered to be due to the
coloured test material and thus not of toxicological significance.
With the exception of the two female decedents, all animals treated with
300 mg/kg bw/day appeared normal until day 7, when hunched posture
developed. Bodyweight loss was observed in these animals by day 7.
The two females found dead on days 5 and 8 showed a deterioration in
physical condition prior to their deaths, including bodyweight loss,
stained external fur, hunched posture, lethargy, piloerection, laboured
respiration, decreased respiratory rate, dehydration, emaciation, tiptoe
gait and swelling of the snout.
Effects in Organs The four animals found dead after a single dose of 600 mg/kg bw/day
were found to have swelling of the tongue, enlarged salivary glands, dark
staining of the glandular gastric epithelium and dark gastrointestinal
contents. Female decedents at 300 mg/kg bw/day showed similar changes
at necropsy, while also showing black staining of the uterus and/or non-
glandular gastric epithelium. All surviving animals at 300 or 600 mg/kg
bw/day showed no macroscopic abnormalities.
Males treated with 150 mg/kg bw/day showed enlarged and/or dark
spleens, and one showed patchy pallor and accentuated lobular pattern of
the kidneys. One female also showed a dark spleen at this dose level.
Remarks - Results The results were sufficient to indicate that test substance should be
considered as harmful via the oral route.
On the basis of this study, the dose levels for the 28-day repeat-dose oral
CONCLUSION
toxicity study were chosen to be 1.5, 15 and 150 mg/kg bw/day.
TEST FACILITY Safepharm (1997a)
B.7. Repeat dose toxicity (28 day)
TEST SUBSTANCE Bonjet Black 817-E
EC Directive 92/69/EEC B.7 Repeated Dose (28 Days) Toxicity (Oral).
METHOD
Japanese Ministry of Health and Welfare (MHW) Guidelines (1986) for a
twenty-eight day repeat dose oral toxicity study.
Species/Strain Rat/Sprague-Dawley Crl:CD BR
Route of Administration Oral ?gavage
Exposure Information Total exposure days: 28 days
Dose regimen: 7 days per week
Post-exposure observation period: 14 days
FULL PUBLIC REPORT: STD/1242 Page 22 of 30
June 2007 NICNAS
Vehicle Distilled water
Remarks - Method No significant protocol deviations. The dose levels for this study were
selected on the basis of a 14-day oral range-finding toxicity study (above
under B.6. Repeat dose toxicity (14 day)).
RESULTS
Group Number and Sex of Dose Mortality
Animals (mg/kg bw/day)
I (control) 5M, 5F 0 0
II (control recovery) 5M, 5F 0 0
III (low dose) 5M, 5F 1.5 0
IV (mid dose) 5M, 5F 15 0
V (high dose) 5M, 5F 150 0
VI (high dose recovery) 5M, 5F 150 0
Mortality and Time to Death
No deaths occurred during the study.
Clinical Observations
No clinical signs of toxicity were observed during the study. Black-stained urine and faeces were
observed throughout the treatment period, but these were considered due to the coloured test substance,
and not toxicologically relevant. Stained urine was not observed during the recovery period.
Animals treated with 150 mg/kg bw/day showed a reduction in bodyweight gain during week 3 (males)
and week 4 (males and females) of treatment. Females at this dose showed reduced food intake during
week 4. These findings were reversible during the 14-day recovery treatment-free period.
Laboratory Findings ?Clinical Chemistry, Haematology, Urinalysis
Haematology: Animals treated with 150 mg/kg bw/day showed a reduction in haemoglobin,
erythrocyte count and haematocrit, and increases in mean corpuscular volume, total leucocyte count,
reticulocyte count, methaemoglobin, mean corpuscular haemoglobin (females only) and elevated
neutrophil count (males only). Many of these changes persisted up to 14 days of recovery, including
the reduced erythrocyte count and increased mean corpuscular volume, mean corpuscular haemoglobin
and reticulocyte count.
Clinical chemistry: Slight increases in plasma bilirubin concentrations were observed in animals treated
with 150 mg/kg bw/day, and females at this dose showed increased potassium and plasma aspartate
aminotransferase activity. These effects were reducible after 14 days of recovery.
Urinalysis: No adverse effects on urinary parameters were found.
Effects in Organs
Animals of both sexes treated with 150 mg/kg bw/day showed significant increases in spleen weight,
both absolute and relative to terminal bodyweight. This effect persisted in females after 14 days
recovery. Microscopic examination revealed increased severity of splenic extramedullary haemopoiesis
and haemosiderin deposition relative to controls. Haemosiderin deposition was also observed in the
liver and renal tubules of females treated with 150 mg/kg bw/day. All occurrences of haemosiderin
deposition persisted until the end of the recovery period.
Males of the 150 mg/kg bw/day recovery group showed reduced absolute and relative testes weight at
the end of the recovery period. Upon microscopic examination, testicular atrophy was observed in two
males of the 150 mg/kg bw/day treatment group and in all males of the corresponding recovery group,
indicating it was a progressive, irreversible effect.
Remarks ?Results
No adverse effects were observed in animals of either sex treated with 1.5 or 15 mg/kg bw/day.
It was considered that the evidence of haemolytic anaemia observed in high dose animals led to the
spleen functioning as an additional site for red blood cell formation and this hypothesis explains the
increased spleen weights and extramedullary haematopoiesis.
FULL PUBLIC REPORT: STD/1242 Page 23 of 30
June 2007 NICNAS
CONCLUSION
The No Observed Effect Level (NOEL) was established as 15 mg/kg bw/day in this study, based on the
absence of treatment-related effects at this dose level.
TEST FACILITY Safepharm (1997a)
B.8. Genotoxicity ?bacteria
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 471 Bacterial Reverse Mutation Test.
METHOD
EC Directive 2000/32/EC B.13/14 Mutagenicity ?Reverse Mutation Test
using Bacteria.
Plate incorporation procedure
Species/Strain S. typhimurium: TA1535, TA1537, TA98, TA100
E. coli: WP2uvrA
Metabolic Activation System Phenobarbitone/-naphthoflavone-induced rat liver S9 mix
Concentration Range in a) With metabolic activation: 50, 150, 500, 1500 and 5000
Main Test 礸/plate
b) Without metabolic activation: 50, 150, 500, 1500 and 5000 礸/plate
Vehicle Distilled, sterile water
Remarks - Method Positive controls used:
-S9: N-ethyl-N'-nitro-N-nitrosoguanidine, 9-aminoacridine and 4-
nitroquinoline-1-oxide.
+S9: 2-Aminoanthracene and benzo[a]pyrene.
RESULTS
Metabolic Test Substance Concentration (礸/plate) Resulting in:
Activation Cytotoxicity in Cytotoxicity in Precipitation Genotoxic Effect
Preliminary Test Main Test
Absent Test 1 >5000 >5000 >5000 Negative
Test 2 >5000 >5000 >5000 Negative
Present Test 1 >5000 >5000 >5000 Negative
Test 2 >5000 >5000 >5000 Negative
Remarks - Results A grey colour in the plates was observed at doses of 50 礸/plate, which
became intense purple at 500 礸/plate, but this did not interfere with the
scoring of the revertant colonies. The positive controls yielded positive
results, indicating that the test system was functioning appropriately.
As a reductive pre-incubation step was not used in this study, the result
(non-mutagenic) is indicative only of the conditions of this particular
Ames test. It has been observed that many azo compounds are found to
be non-mutagenic in standard Ames tests, but mutagenic when a
modified test is used (豯lgaard et al, 1998). Therefore, this negative
result is considered inconclusive as a modified test (eg Prival and
Mitchell, 1982) was not used.
The test substance was not mutagenic to bacteria under the conditions of
CONCLUSION
the test.
TEST FACILITY Safepharm (2000f)
FULL PUBLIC REPORT: STD/1242 Page 24 of 30
June 2007 NICNAS
B.9. Genotoxicity ?in vitro
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 473 In vitro Mammalian Chromosome Aberration Test.
METHOD
EC Directive 2000/32/EC B.10 Mutagenicity - In vitro Mammalian
Chromosome Aberration Test.
Cell Type/Cell Line Human lymphocytes
Metabolic Activation System Phenobarbitone/-naphthoflavone-induced rat liver S9 mix
Vehicle Minimal Essential Medium (MEM)
Remarks - Method A continuous 24-hour exposure without S9 was not performed, as a clear
positive response was observed using a 4-hour exposure. Likewise, a
second experiment was not performed because a clear response was
observed in the first test.
Metabolic Exposure Harvest
Test Substance Concentration (礸/mL)
Activation Period Time
Absent 0*, 78.13, 156.25, 312.5, 625*, 1250*, 2500* 4 24
Present 0*, 78.13, 156.25, 312.5, 625*, 1250*, 2500* 4 24
*Cultures selected for metaphase analysis.
RESULTS
Test Substance Concentration (礸/mL) Resulting in:
Metabolic
Cytotoxicity in Cytotoxicity in
Activation Precipitation Genotoxic Effect
Preliminary Test Main Test
Absent >2500 1250 >2500 Positive
Present >2500 1250 >2500 Positive
Remarks - Results The test substance induced dose-related, statistically significant increases
in the frequency of cells with chromosomal aberrations, in both the
presence and absence of metabolic activation. Without activation, a
positive response was seen only at the top dose; with activation a dose-
response was observed at 1,250 and 2,500 礸/mL.
The test substance was clastogenic to human lymphocytes treated in vitro
CONCLUSION
under the conditions of the test.
TEST FACILITY Safepharm (2001)
B.10. Genotoxicity ?in vivo
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 474 Mammalian Erythrocyte Micronucleus Test.
METHOD
EC Directive 2000/32/EC B.12 Mutagenicity ?in vivo Mammalian
Erythrocyte Micronucleus Test.
Species/Strain Mouse/albino Crl:CD-1(ICR)BR
Route of Administration Oral ?gavage
Vehicle Distilled water
Remarks - Method A dose range-finding test was performed using doses of 500-1000 mg/kg
bw, and a maximum tolerated dose (MTD) of 750 mg/kg bw was
selected. Due to a lack of differences in toxic response between sexes of
animals in the range-finding test, the main test was performed using only
male mice.
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June 2007 NICNAS
Number and Sex Dose Sacrifice Time
Group
of Animals (mg/kg bw) (hours)
I (vehicle control) 7M 0 24
II (vehicle control) 7M 0 48
III (low dose) 7M 187.5 24
IV (mid dose) 7M 375 24
V (high dose) 7M 750 24
VI(high dose) 7M 750 48
V (cyclophosphamide) 5M 50 24
RESULTS
Doses Producing Toxicity Premature deaths were observed in the 24-hour 750 mg/kg bw test
material treatment group, where two animals died prior to sampling of
their bone marrow. The only clinical sign observed was hunched posture,
seen in the surviving animals at 750 mg/kg bw of both the 24- and 48-
hour test groups.
Genotoxic Effects There was a small but statistically significant increase in the frequency of
micronucleated polychromatic erythrocytes (mPCE) in the 24-hour, 750
mg/kg bw group when compared with its control. This was attributed to a
low concurrent control value, and the frequency of mPCE obtained at this
dose was thought to be within the upper limit of the historical vehicle
control range. Indeed, the level of mPCEs found after treatment with the
test substance is in fact below the expected 0.2% rate of spontaneous
mPCE formation in mouse bone marrow (EHC 51, 1982).
Remarks - Results The reduced PCE/NCE ratio seen in this group may also indicate bone
marrow toxicity, which is known to stimulate erythropoiesis and increase
the spontaneous frequency of mPCE.
The statistical power of the analysis was reduced in the 24-hour,
750 mg/kg bw test group, due to the two premature deaths. The impact of
this on the analyses performed is uncertain.
The negative test result, while requiring justification, is reasonably
convincing. There is no evidence of a strongly positive clastogenic test
result.
The test substance was not clastogenic under the conditions of this in vivo
CONCLUSION
mouse micronucleus test, although the test data have some weaknesses.
TEST FACILITY Safepharm (2005)
FULL PUBLIC REPORT: STD/1242 Page 26 of 30
June 2007 NICNAS
Appendix C: Environmental Fate and Ecotoxicological Investigations
All environmental fate and ecotoxicological investigations were performed using a mixture of two chemicals,
Bonjet Black 817-E, equivalent to Bonjet Black 818.
C1. Environmental Fate
C.1.1. Ready biodegradability
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 301 B Ready Biodegradability: CO2 Evolution Test.
METHOD
Inoculum Sewage Sludge from sewage treatment plant (STP) at Belper Derbyshire,
UK treating predominantly domestic sewage.
Exposure Period 28 Days
Auxiliary Solvent None specified
CO2 analyser
Analytical Monitoring
Remarks - Method Duplicate test samples were run with a final concentration of 10 mg
carbon/L. Duplicate blanks and reference material (sodium benzoate) were
run. A further single toxicity test was run containing the test substance and
reference substance. Two CO2 absorbers were connected in series.
Samples were taken on days 0, 1, 2, 3, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24,
27, 28 and 29 for the first absorber and days 0 and 29 for the second.
RESULTS
Test substance Sodium benzoate
Day % Degradation Day % Degradation
1 0 1 11
3 5 3 50
10 3 10 76
14 4 14 79
28 7 28 91
29* 10 29 94
* Day 29 values corrected to include any carry over of CO2 detected in absorber 2.
Remarks - Results The toxicity control attained 36% degradation after day 28 thereby
confirming that the test material was non-toxic to sewage sludge
organisms.
The test substance cannot be regarded as readily biodegradable.
CONCLUSION
TEST FACILITY Safepharm (2000g)
C.1.2. Bioaccumulation
The notified chemical has a low log Kow value and is therefore unlikely to bioaccumulate.
C2. Ecotoxicological Investigations
C.2.1. Acute toxicity to fish
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 203 Fish, Acute Toxicity Test
METHOD
EC Directive 92/69/EEC C.1 Acute Toxicity for Fish 璼emi static.
Species Rainbow Trout (Oncorhynchus mykiss)
Exposure Period 96 hours
FULL PUBLIC REPORT: STD/1242 Page 27 of 30
June 2007 NICNAS
Auxiliary Solvent None
~100 mg CaCO3/L
Water Hardness
Analytical Monitoring Visual; HPLC
Remarks ?Method A preliminary range finding study was conducted using three fish per test
concentration of 1.0, 10 and 100 mg/L of test substance. A control was
also run. Based on the findings of the range finding test a "Limit Test"
was run by subjecting duplicates of ten fish to 100 mg/L of test
substance. A single control was also run. The test solutions were changed
daily.
Temperature: 14.0癈
pH: 7.4-8.0
Dissolved oxygen: 9.2-9.7 mg O2/L
Light 16 hours light, 8 hours dark with 20 minute transition.
RESULTS
Mortality
Nominal Concentration (mg/L) Number of Fish
3h 24 h 48 h 72 h 96 h
0 10 0 0 0 0 0
100 20 0 0 0 0 0
LC50 >100 mg/L at 96 hours.
NOEC (or LOEC) 100 mg/L at 96 hours.
Remarks ?Results The recovery of solutions was between 98-108% of the nominal
concentration. No abnormal behaviour was observed in any of the test
concentrations.
The test substance is practically non-toxic to fish.
CONCLUSION
TEST FACILITY Safepharm (2000h)
C.2.2. Acute/chronic toxicity to aquatic invertebrates
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 202 Daphnia sp. Acute Immobilisation and Reproduction Test
METHOD
EC Directive 92/69/EEC C.2 Acute Toxicity for Daphnia - static.
Species Daphnia magna
Exposure Period 48 hours
Auxiliary Solvent None
~250 mg CaCO3/L
Water Hardness
Analytical Monitoring Visual Observation; HPLC
Remarks - Method A preliminary range finding study was conducted using ten daphnia per
test concentration of 0.010, 0.10, 1.0, 10 and 100 mg/L of test substance.
A control was also run. Based on the findings of the range finding test a
"Limit Test" was run by subjecting four replicates of ten daphnids to
100 mg/L of test substance. A duplicate control was also run.
Temperature: 21.0癈
pH: 7.7-8.0
Dissolved oxygen: 8.1-8.4 mg O2/L
Light 16 hours light, 8 hours dark with 20 minute transition.
RESULTS
Number Immobilised
Nominal Concentration (mg/L) Number of D. magna
24 hour 48 hour
0 20 0 0
100 40 0 0
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June 2007 NICNAS
LC50 >100 mg/L at 48 hours [acute]
NOEC 100 mg/L at 48 hours [acute]
Remarks - Results The recovery of solutions was between 100-103% of the nominal
concentration. No abnormal behaviour was observed in any test.
The test substance is practically non-toxic to Daphnia.
CONCLUSION
TEST FACILITY Safepharm (2000i)
C.2.3. Algal growth inhibition test
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 201 Alga, Growth Inhibition Test
METHOD
EC Directive 92/69/EEC C.3 Algal Inhibition Test.
Species Green Alga (Scenedesmus subspicatus)
Exposure Period 7.2 hours
Concentration Range Nominal: 0.10-10 mg/L
Actual: 0.071-11 mg/L
Auxiliary Solvent None
~ 4 mg CaCO3/L based on culture medium.
Water Hardness
Analytical Monitoring Particle Counter and haemocytometer
Remarks - Method A range finding study was conducted by exposing algal cells (in
duplicate) to 0.10, 1.0, 10 and 100 mg/L of test substance and a control.
On the basis of the range finding test, three replicate cultures of nominal
cell density of 1?04 per mL in direct contact with 0.10, 0.32, 1.0, 3.2
and 10 mg/L of test substance were prepared (Test A). Further single
tests of the same concentrations were prepared but the alga was only
shaded by the test substance but not in direct contact (Test B). A control
was also run in triplicate.
pH 7.3 ?7.4
Temperature 24 ?1癈
Light Intensity ~ 7,000 Lux
RESULTS
Test A (in direct contact and shaded)
Biomass Growth
EbC50 (mg/L) at 72 h ErC50 (mg/L) at 72 h
1.2 >11
Test B (shaded only)
Biomass Growth
EbC50 (mg/L) at 72 h ErC50 (mg/L) at 72 h
10 >11
Remarks - Results The results were based on the time-weighted average mean of the
measured test concentrations. The percentage recovery of the nominal
concentrations was between 71 and 113%. The 95% confidence interval
(CI) was not calculated as the data did not fit the models available
(Litchfield & Willcoxon, Probit Logistic and Weillbulls). Tests A and B
show that there is a real toxic effect from the test substance and that the
toxicity cannot be solely attributed to shading.
The test substance is moderately toxic to algae.
CONCLUSION
TEST FACILITY Safepharm (2000j)
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June 2007 NICNAS
C.2.4. Inhibition of microbial activity
TEST SUBSTANCE Bonjet Black 817-E
OECD TG 209 Activated Sludge, Respiration Inhibition Test
METHOD
EC Directive 88/302/EEC C.11 Biodegradation: Activated Sludge
Respiration Inhibition Test
Inoculum Sewage Sludge from STP at Belper Derbyshire, UK treating
predominantly domestic sewage.
Exposure Period 3 hours
Concentration Range Nominal: 10- 1,000 mg/L
Remarks ?Method A range finding test was conducted by subjecting sewage sludge to 10,
100 and 1,000 mg/L of test substance. Control and reference substances
(3,5-dichlorophenol) were used at 3.2 and 32 mg/L.
On the basis of the range finding test a limit test was conducted by
subjecting triplicate samples of sewage sludge to 1,000 mg/L of test
substance. Control and reference substance concentrations of 3.2, 10 and
32 mg/L were used.
RESULTS
IC50 >1,000 mg/L
NOEC 1,000 mg/L
Remarks ?Results The IC50 of 3,5-dichlorophenol was 8.3 mg/L. The test substance
solutions appeared as a dark purple solution with no observed
undissolved material. Less than 10% inhibition was observed in all test
samples.
The test substance is practically non-inhibitory to sewage sludge
CONCLUSION
microorganisms.
TEST FACILITY Safepharm (2000k)
FULL PUBLIC REPORT: STD/1242 Page 30 of 30
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