Search    ENTER KEYWORD
MSDS Material Safety Data Sheet
CAS

1317-65-3 107-21-1 107-13-1

File Name: 1317-65-3_107-21-1_107-13.asp

         |-------------------------------------------------------|
| MATERIAL SAFETY DATA SHEET |
|-------------------------------------------------------|

|-------------------------------------------------------------------------|
| SECTION 1 - CHEMICAL PRODUCT AND COMPANY IDENTIFICATION |
|-------------------------------------------------------------------------|

THIS MATERIAL SAFETY DATA SHEET IS AVAILABLE IN SPANISH UPON REQUEST.

LOS DATOS DE SEGURIDAD DEL PRODUCTO PUEDEN OBTENERSE EN ESPANOL SI LO
REQUIERE.

PRODUCT NAME : DYNAFLEX 230 - ALL COLORS
UPC NUMBER : 18275, 18280, 18286, 18288, 18298, 18412, 18410,
18420
PRODUCT USE/CLASS : Latex caulk

MANUFACTURER: 24 HOUR EMERGENCY:
DAP INC. TRANSPORTATION: 1-800-535-5053
2400 Boston Street MEDICAL : 1-800-327-3874
Baltimore MD 21224

PREPARE DATE : 09/03/1997 GENERAL INFORMATION:
REVISION NO. : 9 DAP INC.: 1-800-543-3840
REVISION DATE: 08/30/2002

|-------------------------------------------------------------------------|
| SECTION 2 - COMPOSITION/INFORMATION ON INGREDIENTS |
|-------------------------------------------------------------------------|
WT/WT %
ITEM ------------ CHEMICAL NAME ------------- CAS NUMBER RANGE
---------------------------------------------------------------------------

01 Calcium Carbonate 1317-65-3 40.0-50.0 %
02 Phthalate Esters Proprietary 1.0-5.0 %
03 Ethylene glycol 107-21-1 0-1.0 %
04 Acrylonitrile 107-13-1 <0.0004 %

---------------------- EXPOSURE LIMITS --------------------
ACGIH OSHA COMPANY
ITEM TLV-TWA TLV-STEL PEL-TWA PEL-CEILING TLV-TWA SKIN
--------------------------------------------------------------------------

01 10 mg/m3 N.E. 15 mg/m3 N.E. N.E. NO
02 N.E. N.E. N.E. N.E. N.E. NO
03 N.E. 100 mg/m3 N.E. 125 mg/m3 N.E. NO
04 2 ppm N.E. 2 ppm 10 ppm N.E. NO

(See Section 16 for abbreviation legend), * - TLV-Ceiling Value
Remaining ingredients are not considered hazardous per the OSHA Hazard
Communication Standard.

Listed Permissible Exposure Levels (PEL) are from the U.S. Dept. of Labor
OSHA Final Rule Limits (CFR 29 1910.1000); limits may vary between states.

(Continued on Page 2)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 2
|-------------------------------------------------------------------------|
| SECTION 2 - COMPOSITION/INFORMATION ON INGREDIENTS |
|-------------------------------------------------------------------------|


|-------------------------------------------------------------------------|
| SECTION 3 - HAZARDS IDENTIFICATION |
|-------------------------------------------------------------------------|

EMERGENCY OVERVIEW: A thick, white or variously colored pastes with a mild
sweet odor.

WARNING! May cause eye, skin, nose, throat and respiratory tract
irritationHarmful if swallowed or absorbed through the skin. Presents
little or no hazard (if spilled) and / or no unusual hazard if involved in
a fire.

POTENTIAL HEALTH EFFECTS:

EFFECTS OF OVEREXPOSURE - EYE CONTACT: May cause eye irritation.

EFFECTS OF OVEREXPOSURE - SKIN CONTACT: May cause allergic skin reaction or
sensitization. Prolonged or repeated contact with skin may cause
irritation.

EFFECTS OF OVEREXPOSURE - INHALATION: Vapor may cause nose, throat and
respiratory tract irritation.

EFFECTS OF OVEREXPOSURE - INGESTION: Harmful if swallowed.

EFFECTS OF OVEREXPOSURE ?CHRONIC HAZARDS: Repeated or prolonged exposure
may cause skin, respiratory, kidney, cardiovascular and liver damage.
Ethylene glycol has been shown to cause birth defects in laboratory
animals.

MEDICAL CONDITIONS WHICH MAY BE AGGRAVATED BY CONTACT: None known.

PRIMARY ROUTE(S) OF ENTRY: SKIN CONTACT, INHALATION, EYE CONTACT

|-------------------------------------------------------------------------|
| SECTION 4 - FIRST AID MEASURES |
|-------------------------------------------------------------------------|

EYE CONTACT: Immediately flood with large quantities of water for at least
15 minutes until irritation subsides. Get medical attention immediately.

SKIN CONTACT: Wash thoroughly with soap and water.

INHALATION: Remove to fresh air. If you experience difficulty in
breathing, leave the area to obtain fresh air. If continued breathing
difficulty is experienced, get medical attention immediately.

INGESTION: DO NOT INDUCE VOMITING. Get medical attention immediately.



(Continued on Page 3)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 3
|-------------------------------------------------------------------------|
| SECTION 4 - FIRST AID MEASURES |
|-------------------------------------------------------------------------|

COMMENTS: Call Medical Emergency 1-800-327-3874 if any irritation or
complications arise from any of the above routes of entry.

|-------------------------------------------------------------------------|
| SECTION 5 - FIRE FIGHTING MEASURES |
|-------------------------------------------------------------------------|

FLASH POINT: >200 F LOWER EXPLOSIVE LIMIT: N.A.
(SETAFLASH CLOSED CUP) UPPER EXPLOSIVE LIMIT: N.A.

AUTOIGNITION TEMPERATURE: N.A.

EXTINGUISHING MEDIA: CO2 DRY CHEMICAL FOAM WATER FOG

UNUSUAL FIRE AND EXPLOSION HAZARDS: None known.

SPECIAL FIREFIGHTING PROCEDURES: As in any fire, wear self-contained
breathing apparatus pressure-demand (NIOSH approved or equivalent) and
full protective gear. Use water spray to cool exposed surfaces.

|-------------------------------------------------------------------------|
| SECTION 6 - ACCIDENTAL RELEASE MEASURES |
|-------------------------------------------------------------------------|

SPILL OR LEAK PROCEDURES: Use absorbent material or scrape up dried
material and place into containers.

|-------------------------------------------------------------------------|
| SECTION 7 - HANDLING AND STORAGE |
|-------------------------------------------------------------------------|

HANDLING INFORMATION: KEEP OUT OF REACH OF CHILDREN. DO NOT TAKE
INTERNALLY. Avoid contact with skin. Avoid contact with eyes. Do not get
on clothing. Use only with adequate ventilation. Avoid breathing vapors.
Ensure fresh air entry during application and drying by opening windows and
doors. Keep container closed when not in use. Wash thoroughly after
handling.

STORAGE INFORMATION: Store away from caustics and oxidizers. Keep
containers tightly closed when not in use. Keep containers from excessive
heat and freezing. Do not store at temperatures above 120 degrees F.

OTHER PRECAUTIONS: None known.

|-------------------------------------------------------------------------|
| SECTION 8 - EXPOSURE CONTROLS/PERSONAL PROTECTION |
|-------------------------------------------------------------------------|

ENGINEERING CONTROLS: Good general ventilation should be sufficient to
control airborne levels. A NIOSH-approved air purifying respirator with an
organic vapor cartridge or canister may be necessary under certain

(Continued on Page 4)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 4
|-------------------------------------------------------------------------|
| SECTION 8 - EXPOSURE CONTROLS/PERSONAL PROTECTION |
|-------------------------------------------------------------------------|
circumstances where airborne concentrations are expected to exceed exposure
limits.

RESPIRATORY PROTECTION: A respiratory protection program that meets OSHA
1910.134 and ANSI Z88.2 requirements must be followed whenever workplace
conditions warrant a respirator's use.

EYE PROTECTION: Wear safety glasses with side shields.

SKIN PROTECTION: Rubber gloves.

OTHER PROTECTIVE EQUIPMENT: None.

HYGIENIC PRACTICES: Remove contaminated clothing and wash before reuse.

|-------------------------------------------------------------------------|
| SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES |
|-------------------------------------------------------------------------|

BOILING RANGE : 210 - 220 F VAPOR DENSITY : Is heavier than air
ODOR : Slight ammonia
APPEARANCE : Colored paste EVAPORATION RATE: Is slower than Butyl
SOLUBILITY IN H2O : Negligible Acetate
SPECIFIC GRAVITY : 1.461 pH: 9 - 10
VAPOR PRESSURE : 17 mm Hg @ 68 F.
PHYSICAL STATE : Paste

(See Section 16 for abbreviation legend)

|-------------------------------------------------------------------------|
| SECTION 10 - STABILITY AND REACTIVITY |
|-------------------------------------------------------------------------|

CONDITIONS TO AVOID: Excessive heat and freezing.

INCOMPATIBILITY: Strong oxidizers and caustics.

HAZARDOUS DECOMPOSITION PRODUCTS: Normal decomposition products, i.e. COx,
NOx

HAZARDOUS POLYMERIZATION: Will not occur under normal conditions.

STABILITY: This product is stable under normal storage conditions.

|-------------------------------------------------------------------------|
| SECTION 11 - TOXICOLOGICAL PROPERTIES |
|-------------------------------------------------------------------------|

The toxicological properties of this material are unknown.




(Continued on Page 5)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 5
|-------------------------------------------------------------------------|
| SECTION 11 - TOXICOLOGICAL PROPERTIES |
|-------------------------------------------------------------------------|

SIGNIFICANT DATA WITH POSSIBLE RELEVANCE TO HUMANS

This product contains trace amounts of free formaldehyde. OSHA, NTP and
IARC identify formaldehyde as a potential carcinogen. Formaldehyde has
been shown to cause mutations in a variety of in-vitro test systems, the
significance of which to humans is unknown. There should be minimal risk
when used with ventilation adequate to keep the atmospheric concentration
of formaldehyde below the recommended exposure limit. Maintain adequate
ventilation to prevent exposure above current OSHA / ACGIH exposure limits.
Workplace monitoring of the air to define formaldehyde exposure levels may
be necessary.

This product contains trace amounts of acrylonitrile. It is exempt from
the OSHA acrylonitrile standard 29 CFR 1910.1045, paragraph (a) (2) (ii).
Acrylonitrile has been classified by IARC as possibly carcinogenic to
humans, by OSHA as carcinogenic and by NTP as reasonably anticipated to be
a human carcinogen.

|-------------------------------------------------------------------------|
| SECTION 12 - ECOLOGICAL INFORMATION |
|-------------------------------------------------------------------------|

No Information.

|-------------------------------------------------------------------------|
| SECTION 13 - DISPOSAL CONSIDERATIONS |
|-------------------------------------------------------------------------|

WASTE MANAGEMENT/DISPOSAL: Dispose of according to Federal, State, and
Local Standards. This product does not meet the definition of a hazardous
waste according to U.S. EPA Hazardous Waste Management Regulations, 40 CFR
Section 261. State and Local regulations/restrictions are complex and may
differ from Federal regulations. Responsibility for proper waste disposal
is with the owner of the waste.

EPA WASTE CODE - If discarded (40 CFR 261): None.

|-------------------------------------------------------------------------|
| SECTION 14 - TRANSPORTATION INFORMATION |
|-------------------------------------------------------------------------|

DOT PROPER SHIPPING NAME: Not Regulated by D.O.T.

DOT HAZARD CLASS: NONE

DOT UN/NA NUMBER: NONE PACKING GROUP: NONE

|-------------------------------------------------------------------------|
| SECTION 15 - REGULATORY INFORMATION |
|-------------------------------------------------------------------------|


(Continued on Page 6)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 6
|-------------------------------------------------------------------------|
| SECTION 15 - REGULATORY INFORMATION |
|-------------------------------------------------------------------------|

U.S. FEDERAL REGULATIONS: AS FOLLOWS -

OSHA: Hazardous by definition of Hazard Communication Standard (29 CFR
1910.1200)

SARA SECTION 313:
This product contains the following substances subject to the reporting
requirements of Section 313 of Title III of the Superfund Amendments and
Reauthorization Act of 1986 and 40 CFR Part 372:

None

TOXIC SUBSTANCES CONTROL ACT:
This product contains the following chemical substances subject to the
reporting requirements of TSCA 12(B) if exported from the United States:

None

NEW JERSEY RIGHT-TO-KNOW:
The following materials are non-hazardous, but are among the top five
components in this product:

----------- CHEMICAL NAME ----------- CAS NUMBER
Acrylic polymer TSRN-618608-5059P
Water 7732-18-5

PENNSYLVANIA RIGHT-TO-KNOW:
The following non-hazardous ingredients are present in the product at
greater than 3%:

----------- CHEMICAL NAME ----------- CAS NUMBER
Acrylic polymer proprietary
Water 7732-18-5

CALIFORNIA PROPOSITION 65:
WARNING: The chemical(s) noted below and contained in this product, are
known to the state of California to cause cancer, birth defects or other
reproductive harm:

----------- CHEMICAL NAME ----------- CAS NUMBER
Crystalline silica 14808-60-7
Fomaldehyde 50-00-0
Ethyl acrylate 140-88-5
Acetaldehyde 75-07-0
Acrylamide 79-06-1
Acrylonitrile 107-13-1
Lead 9739-92-1




(Continued on Page 7)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 7
|-------------------------------------------------------------------------|
| SECTION 15 - REGULATORY INFORMATION |
|-------------------------------------------------------------------------|

INTERNATIONAL REGULATIONS: AS FOLLOWS -

CANADIAN WHMIS: This MSDS has been prepared in compliance with Controlled
Product Regulations except for use of the 16 headings.

CANADIAN WHMIS CLASS: Not Regulated.

|-------------------------------------------------------------------------|
| SECTION 16 - OTHER INFORMATION |
|-------------------------------------------------------------------------|

HMIS RATINGS - HEALTH: 1 FLAMMABILITY: 1 REACTIVITY: 0

PREVIOUS MSDS REVISION DATE: 02/26/2002

REASON FOR REVISION:
SECTION 1: Update UPC numbers
SECTION 2: Update OSHA HAZCOM composition information.
SECTION 3: Update emergency overview, effects of over exposure via skin,
inhalation and ingestion, chronic hazard information and routes of entry.
SECTION 4: Update of eye, skin, inhalation and ingestion first aid.
SECTION 7: Update handling information.
SECTION 8: Update Engineering Controls information, skin protection
information and hygenic practices.
SECTION 9: Update pH.
SECTION 11: Add information on trace formaldehyde, and acarylonitrile.
SECTION 15: Update California Prop 65 information.

VOC less water, less exempt solvents: 5-10 gm/l(<1%)
VOC material: 5-10 gm/l

LEGEND: ACGIH - AMERICAN CONFERENCE OF GOVERNMENTAL INDUSTRIAL HYGIENISTS
N.A. - NOT APPLICABLE
N.E. - NOT ESTABLISHED
PEL - PERMISSIBLE EXPOSURE LIMIT
NTP - NATIONAL TOXICOLOGY PROGRAM
SARA - SUPERFUND AMENDMENTS AND REAUTHORIZATION ACT OF 1986
STEL - SHORT TERM EXPOSURE LIMIT
TLV - THRESHOLD LIMIT VALUE(8 HR. TIME WEIGHTED AVERAGE OR TWA)
VOC - VOLATILE ORGANIC COMPOUND
NJRTK - NEW JERSEY RIGHT TO KNOW LAW
N.D. - NOT DETERMINED

MSDS # 10001
---------------------------------------------------------------------------




(Continued on Page 8)
---------------------------------------------------------------------------
Product Name: DYNAFLEX 230 - ALL COLORS
Revision Date: 08/30/2002 Page 8
|-------------------------------------------------------------------------|
| SECTION 16 - OTHER INFORMATION |
|-------------------------------------------------------------------------|




This data is offered in good faith as typical values and not as a product
specification. No warranty either expressed or implied, is hereby made.
The recommended industrial hygiene and safe handling procedures are
believed to be generally applicable. However, each user should review the
recommendations in specific context of the intended use and determine if
they are appropriate.
---------------------------------------------------------------------------
< End OF MSDS >

Search    ENTER KEYWORD
ALL PAGES On Chemical Property IN THIS GROUP
NAMECAS
50-00-0_67-56-1_7732-18.asp 50-00-0 67-56-1 7732-18-5
108-65-6_1330-20-7_71-36-3_123-86-4_85-68-7_100-41-4_67-56.asp 108-65-6 1330-20-7 71-36-3 123-86-4 85-68-7 100-41-4 67-56-1 64-17-5 107-98-2 64742-95-6 108-67-8 98-82-8 95-63-6 13463-67-7 108-83-8 111-76-2 50-00-0 872-50-4
1330-20-7_123-86-4_13463-67-7_108-65-6_108-83-8_64742-95-6_71-36.asp 1330-20-7 123-86-4 13463-67-7 108-65-6 108-83-8 64742-95-6 71-36-3 85-68-7 100-41-4 67-56-1 64-17-5 107-98-2 98-82-8 872-50-4 111-76-2 50-00-0 1309-37-1
50-00-0_140-88-5_471-34-1_546-93-0_107-21-1_8052-41-3_7664-41.asp 50-00-0 140-88-5 471-34-1 546-93-0 107-21-1 8052-41-3 7664-41-7 12174-11-7 28411-49-6
1333-86-4_1332-58-7_7631-86-9_25038-36-2_64742-01-4_125612-26-2.asp 1333-86-4 1332-58-7 7631-86-9 25038-36-2 64742-01-4 125612-26-2 75-07-0 75-21-8 123-91-1 50-00-0
1317-65-3_107-21-1_107-13-1_123-86-4_108-05.asp 1317-65-3 107-21-1 107-13-1 123-86-4 108-05-4
1317-65-3_107-21-1_107-13.asp 1317-65-3 107-21-1 107-13-1
28182-81-2_53880-05-0_108-10-1_123-86-4_1330-20-7_628-63-7_763-69-9.asp 28182-81-2 53880-05-0 108-10-1 123-86-4 1330-20-7 628-63-7 763-69-9 95-63-6 4098-71-9 822-06-0 100-41-4 95-47-6 108-38-3 103-65-1 106-42-3 108-88-3 91-20-3 50-00-0
9003-29-6_1317-65-3_1332-58-7_12174-11-7_7732-18-5_1332-07.asp 9003-29-6 1317-65-3 1332-58-7 12174-11-7 7732-18-5 1332-07-6 115-77-5 14808-60-7 64742-47-8 50-00-0
50-00-0_64-17-5_108-88-3.asp 50-00-0 64-17-5 108-88-3
9011-05-6_50-00.asp 9011-05-6 50-00-0
14808-60-7_13463-67-7_50-00-0_1317-65-3_8052-41-3_107-21-1_7664-41.asp 14808-60-7 13463-67-7 50-00-0 1317-65-3 8052-41-3 107-21-1 7664-41-7
50-00-0_02-10-2.asp 50-00-0 02-10-2
50-00-0_64-18-6.asp 50-00-0 64-18-6
50-00-0_54-11-5_56-38-2_58-89-9_67-66-3_108-95-2_143-33-9_151-50.asp 50-00-0 54-11-5 56-38-2 58-89-9 67-66-3 108-95-2 143-33-9 151-50-8 1600-27-7 7446-09-5 7446-11-9 7580-67-8 7664-39-3 7697-37-2 7723-14-0 7782-50-5 10025-73-7 10028-15-6 26628-22-8
7727-37-9_50-00.asp 7727-37-9 50-00-0
50-00-0.asp 50-00-0
50-00.asp 50-00-0
7732-18-5_85-68.asp 7732-18-5 85-68-7
50-00-0_67-56-1.asp 50-00-0 67-56-1
50-00-0_107-21-1.asp 50-00-0 107-21-1
68476-86-8_64742-89-8_67-64-1_64742-47-8_100-41-4_1330-20.asp 68476-86-8 64742-89-8 67-64-1 64742-47-8 100-41-4 1330-20-7 7727-43-7 1317-65-3 14808-60-7 50-00-0 71-43-2 75-07-0 108-88-3
7732-18-5_64742-47-8_1317-95-9_66402-68-4_8015-86-9_63148-62.asp 7732-18-5 64742-47-8 1317-95-9 66402-68-4 8015-86-9 63148-62-9 8002-53-7 64741-88-4 1897-45-6 50-00-0
1309-37-1_65997-15-1_7778-18-9_14808-60-7_50-00.asp 1309-37-1 65997-15-1 7778-18-9 14808-60-7 50-00-0
50-00-0_69011-36-5.asp 50-00-0 69011-36-5
7732-18-5_8042-47-5_7631-86-9_57-55-6_1897-45-6_140-88-5_50-00.asp 7732-18-5 8042-47-5 7631-86-9 57-55-6 1897-45-6 140-88-5 50-00-0
75-07-0_79-06-1_50-76-0_309-00-2_117-79-3_92-67-1_7789-09.asp 75-07-0 79-06-1 50-76-0 309-00-2 117-79-3 92-67-1 7789-09-5 90-04-0 1309-64-4 1303-28-2 7440-42-1 1332-21-4 320-67-2 10294-40-3 71-43-2 50-32-8 205-82-3 96-07-7 494-03-1 542-88-1 106-99-0 5407-91-0 25013-16-5 7440-43-9 10108-64-2 10124-36-4 13765-19-0 143-50-0 115-28-6 563-47-3 13010-47-4 107-30-2 95-57-8 540-54-5 54749-90-5 7440-47-3
50-00-0_7732-18-5_67-56.asp 50-00-0 7732-18-5 67-56-1
108-88-3_68476-86-8_67-64-1_14807-96-6_123-86-4_100-41-4_111-76.asp 108-88-3 68476-86-8 67-64-1 14807-96-6 123-86-4 100-41-4 111-76-2 108-65-6 13463-67-7 1330-20-7
1847987619.asp N/A
299080254.asp N/A
50-00-0_7240-90-6_77-92-9_7647-14-5_14459-95-1_13746-66-2.asp 50-00-0 7240-90-6 77-92-9 7647-14-5 14459-95-1 13746-66-2
67-64-1_100-41-4_1330-20-7_78-93-3_763-69-9_74-98-6_108-88.asp 67-64-1 100-41-4 1330-20-7 78-93-3 763-69-9 74-98-6 108-88-3 7440-43-9 7440-38-2 7440-47-3 50-00-0 71-43-2 7440-02-0 75-07-0
74-98-6_106-97-8_67-64-1_75-07-0_50-00-0_71-43.asp 74-98-6 106-97-8 67-64-1 75-07-0 50-00-0 71-43-2
2109400822.asp N/A
50-02-2.asp 50-02-2
32986-56-4_50-02-2_8001-54-5_25301-02-4_6381-92-6_7647-14.asp 32986-56-4 50-02-2 8001-54-5 25301-02-4 6381-92-6 7647-14-5 9004-62-0 7757-82-6 7732-18-5
302-79-4.asp 302-79-4
50-02-2_64-17-5.asp 50-02-2 64-17-5
50-02-2_1405-10-3_1405-20-5_8006-54-0_8042-47-5_8009-03-8_1404-04.asp 50-02-2 1405-10-3 1405-20-5 8006-54-0 8042-47-5 8009-03-8 1404-04-2 1404-26-8
57-55-6.asp 57-55-6
50-02-2.asp 50-02-2
50-02-2.asp 50-02-2
1338-23-4_22-34-4_131-11-3_6846-50-0_7722-84-1_78-93-3_11-36.asp 1338-23-4 22-34-4 131-11-3 6846-50-0 7722-84-1 78-93-3 11-36-6 7732-18-5
50-07.asp 50-07-7
86-21-5_50-07-7.asp 86-21-5 50-07-7
50-07-7_69-65-8.asp 50-07-7 69-65-8
50-07.asp 50-07-7
50-07-7.asp 50-07-7
431-47-0.asp 431-47-0


HBCChem,Inc

Chemical Information Net chemcas.orgCopyright Reserved

Trading Lead

Leputech HPLC Laboratory