Safety Data Sheet
1. IDENTIFICATION OF THE MATERIAL AND SUPPLIER
Product Name: WATKINS HARD TO KILL WEEDKILLER
Recommended Use: Herbicide for the control of bamboo, couch, wild onion and other difficult weeds.
Supplier: Yates New Zealand, a division of DuluxGroup (New Zealand) Pty Ltd
ABN 55 133 404 118
Co. 2355191
Street Address: The Gate Industrial Park,
373 Neilson St, Onehunga
Auckland, New Zealand
Telephone Number: +64 9 636 2800
Facsimile: +64 9 636 2802
Emergency Telephone: CHEMCALL 0800 243 622 (ALL HOURS)
2. HAZARDS IDENTIFICATION
Not classified as a Dangerous Good under NZS 5433:2007 Transport of Dangerous Goods on Land.
Classified as hazardous according to criteria in the HS (Minimum Degrees of Hazard) Regulations 2001.
Subclasses:
Subclass 6.1 Category E - Substances which are acutely toxic.
Subclass 6.4 Category A - Substances that are irritating to the eye.
Subclass 6.8 Category B - Substances that are suspected human reproductive or developmental toxicants.
Subclass 6.9 Category A - Substances that are toxic to human target organs or systems.
Subclass 9.1 Category B - Substances that are ecotoxic in the aquatic environment.
Subclass 9.2 Category A - Substances that are very ecotoxic in the soil environment.
Hazard and Precautionary Information:
May be harmful if swallowed. Causes serious eye irritation. Suspected of damaging fertility or the unborn child.
Causes damage to organs through prolonged or repeated exposure. Toxic to aquatic life with long lasting effects. Very
toxic to the soil environment. If medical advice is needed, have product container or label at hand. Keep out of reach of
children. Read label before use. Read Safety Data Sheet before use. Obtain special instructions before use. Do
not handle until all safety precautions have been read and understood. Do not breathe
dust/fume/gas/mist/vapours/spray. Wash hands, arms and face thoroughly after handling. Do not eat, drink or smoke
when using this product. Wear protective gloves/protective clothing/eye protection/face protection. Avoid release to the
environment. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy
to do. Continue rinsing. If eye irritation persists: Get medical advice/attention. Call a POISON CENTER or
doctor/physician if you feel unwell. IF exposed or concerned: Get medical advice/attention. Do NOT induce vomitting.
Collect spillage. Store locked up. In case of a substance that is in compliance with a HSNO approval other than a Part
6A (Group Standards) approval, a label must provide a description of one or more appropriate and achievable methods
for the disposal of a substance in accordance with the Hazardous Substances (Disposal) Regulations 2001. This may
also include any method of disposal that must be avoided.
3. COMPOSITION/INFORMATION ON INGREDIENTS
Product Name: WATKINS HARD TO KILL WEEDKILLER Issued: 18/03/2010
Substance No: 000000020780 Version: 2
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Safety Data Sheet
Components CAS Number Proportion Risk Phrases
Amitrole 61-82-5 400 g/L R48/22 R63 R51/53
Sulfamic acid 5329-14-6 185 g/L R36/38, R52/53
Ammonium thiocyanate 1762-95-4 100 g/L R22
Water 7732-18-5 to 100% -
4. FIRST AID MEASURES
For advice, contact a Poisons Information Centre (e.g. phone Australia 131 126; New Zealand 0800 764 766) or a doctor.
Inhalation:
Remove victim from area of exposure - avoid becoming a casualty. Seek medical advice if effects persist.
Skin Contact:
If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.
Eye Contact:
If in eyes, hold eyelids apart and flush the eye continuously with running water. Continue flushing until advised to stop by
a Poisons Information Centre or a doctor, or for at least 15 minutes.
Ingestion:
If swallowed, do NOT induce vomiting. Give a glass of water. Seek immediate medical assistance.
Medical attention and special treatment:
Treat symptomatically.
5. FIRE FIGHTING MEASURES
Hazards from combustion products:
Non-combustible material.
Precautions for fire fighters and special protective equipment:
Decomposes on heating emitting toxic fumes. Fire fighters to wear self-contained breathing apparatus and suitable
protective clothing if risk of exposure to products of decomposition.
Suitable Extinguishing Media:
Not combustible, however, if material is involved in a fire use: Fine water spray, normal foam, dry agent (carbon dioxide,
dry chemical powder).
6. ACCIDENTAL RELEASE MEASURES
Methods and materials for containment and clean up:
Wear protective equipment to prevent skin and eye contact and breathing in vapours. Contain - prevent run off into drains
and waterways. Use absorbent (soil, sand or other inert material). Collect and seal in properly labelled containers. If
contamination of sewers or waterways has occurred advise local emergency services.
7. HANDLING AND STORAGE
Precautions for safe handling: Avoid contact during pregnancy. Keep out of reach of children. Avoid skin and eye
contact and breathing in vapour, mists and aerosols.
Product Name: WATKINS HARD TO KILL WEEDKILLER Issued: 18/03/2010
Substance No: 000000020780 Version: 2
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Safety Data Sheet
Conditions for safe storage: Store in the closed, original container in a dry, cool, well-ventilated area out of direct
sunlight. Store in a locked room or place away from children, animals, food, feedstuffs, seed and fertilisers. Keep
containers closed when not in use - check regularly for leaks.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Occupational Exposure Limits: No value assigned for this specific material by the New Zealand Occupational Safety
and Health Service (OSH). However, Workplace Exposure Standard(s) for constituent(s):
Amitrole: WES-TWA = 0.2 mg/m3, A3 Carcinogen
As published by the New Zealand Occupational Safety and Health Service (OSH).
WES - TWA (Workplace Exposure Standard - Time Weighted Average) - The eight-hour, time-weighted average
exposure standard is designed to protect the worker from the effects of long-term exposure.
Carcinogen Category A3 - Confirmed animal carcinogen with unknown relevance to humans.
These Exposure Standards are guides to be used in the control of occupational health hazards. All atmospheric
contamination should be kept to as low a level as is workable. These exposure standards should not be used as fine
dividing lines between safe and dangerous concentrations of chemicals. They are not a measure of relative toxicity.
Engineering controls:
Natural ventilation should be adequate under normal use conditions. Keep containers closed when not in use.
Personal Protective Equipment:
Avoid contact with eyes and skin and breathing in spray mist. Wear gloves and eye protection when mixing or using. Use
with adequate ventilation. Wash hands and exposed skin thoroughly after use.
9. PHYSICAL AND CHEMICAL PROPERTIES
Physical state: Liquid
Colour: Pale Yellow
Solubility: Soluble in water.
Specific Gravity: 1.24
Relative Vapour Density (air=1): N Av
Flash Point (癈): N App
Boiling Point/Range (癈): 100 (water)
pH: N Av
Viscosity: N Av
Evaporation Rate: N Av
Product Name: WATKINS HARD TO KILL WEEDKILLER Issued: 18/03/2010
Substance No: 000000020780 Version: 2
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Safety Data Sheet
10. STABILITY AND REACTIVITY
Chemical stability: Stable under normal conditions of use.
Conditions to avoid: Avoid contact with foodstuffs. Avoid exposure to heat.
Incompatible materials: Incompatible with oxidising agents.
Hazardous decomposition Oxides of carbon. Oxides of sulfur. Oxides of nitrogen. Ammonia.
products:
Hazardous reactions: None known.
11. TOXICOLOGICAL INFORMATION
No adverse health effects expected if the product is handled in accordance with this Safety Data Sheet and the product
label. Symptoms or effects that may arise if the product is mishandled and overexposure occurs are:
Ingestion: No information available.
Eye contact: An eye irritant.
Skin contact: Contact with skin may result in irritation.
Inhalation: Breathing in mists or aerosols may produce respiratory irritation.
Long Term Effects:
Available evidence from animal studies indicate that repeated or prolonged exposure to this material could result in
effects on the reproductive system. Possible risk of harm to the unborn child.
Toxicological Data: No LD50 data available for the product. However, for constituent(s) (1):
Oral LD50 (rat): >10000 mg/kg (amitrole)
Dermal LD50 (rat): >2500 mg/kg (amitrole)
For Amitrole (1) : This material has been classified by the International Agency for Research on Cancer (IARC) as a
Group 2B. Group 2B - The agent is possibly carcinogenic to humans.
12. ECOLOGICAL INFORMATION
Ecotoxicity Avoid contaminating waterways and fishponds. Do not allow spray to drift onto
aquatic environments, other crops or desirable plants or outside the target area.
Aquatic toxicity: Toxic to aquatic organisms. For Amitrole (1) :
48hr EC50 (Daphnia magna): 6.1 mg/L
96hr LC50 (rainbow trout): >1000 mg/L
Terrestrial toxicity: Very ecotoxic in the soil environment.
13. DISPOSAL CONSIDERATIONS
Disposal methods:
Refer to local government authority for disposal recommendations. Rinse empty container, puncture and recycle or
dispose of safely with domestic rubbish.
Product Name: WATKINS HARD TO KILL WEEDKILLER Issued: 18/03/2010
Substance No: 000000020780 Version: 2
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Safety Data Sheet
14. TRANSPORT INFORMATION
Road and Rail Transport
Not classified as a Dangerous Good under NZS 5433:2007 Transport of Dangerous Goods on Land.
Marine Transport
Not classified as Dangerous Goods by the criteria of the International Maritime Dangerous Goods Code (IMDG Code) for
transport by sea; NON-DANGEROUS GOODS.
Air Transport
Not classified as Dangerous Goods by the criteria of the International Air Transport Association (IATA) Dangerous Goods
Regulations for transport by air; NON-DANGEROUS GOODS.
15. REGULATORY INFORMATION
Classification:
Classified as hazardous according to criteria in the HS (Minimum Degrees of Hazard) Regulations 2001.
Subclasses:
Subclass 6.1 Category E - Substances which are acutely toxic.
Subclass 6.4 Category A - Substances that are irritating to the eye.
Subclass 6.8 Category B - Substances that are suspected human reproductive or developmental toxicants.
Subclass 6.9 Category A - Substances that are toxic to human target organs or systems.
Subclass 9.1 Category B - Substances that are ecotoxic in the aquatic environment.
Subclass 9.2 Category A - Substances that are very ecotoxic in the soil environment.
16. OTHER INFORMATION
(1) In: 'The Pesticide Manual'. 13th Edition. Ed. CDS Tomlin. British Crop Protection Society, 2003.
Reason(s) for Issue:
5 Yearly Revised Primary MSDS
This safety data sheet has been prepared by SH&E Shared Services.
This SDS summarises to our best knowledge at the date of issue, the chemical health and safety hazards of the material
and general guidance on how to safely handle the material in the workplace. Since DuluxGroup Limited cannot anticipate
or control the conditions under which the product may be used, each user must, prior to usage, assess and control the
risks arising from its use of the material.
If clarification or further information is needed, the user should contact their DuluxGroup representative or DuluxGroup
Limited at the contact details on page 1.
DuluxGroup Limited's responsibility for the material as sold is subject to the terms and conditions of sale, a copy of which
is available upon request.
Product Name: WATKINS HARD TO KILL WEEDKILLER Issued: 18/03/2010
Substance No: 000000020780 Version: 2
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