SPECTRUM QUALITY STANDARDS GROSCHKE RD. HOUSTON, TX PHONE: FAX:

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1 SECTION 1: IDENTIFICATION Chemical Product Identity: PIANO MIXTURE - PIANO STAARD {1x1 or 10x1 ampoule containing PIANO mixture combined & sealed with 1 ml of material inside a 2ml ampoule. Can be used for methods D6729, D6730, D6733, & D5134.} Part Number: PIANO-1, PIANO-10 Emergency Telephone Number: or (Outside the U.S.) SECTION 2: HAZARD(S) IDENTIFICATION Identification: FLAMMABLE LIQUID A VAPOR. Liquid can accumulate static charge by flow, splashing or agitation. Vapor is heavier than air and may spread long distances. Distant ignition and flashback are possible. Liquid can float on water and may travel to distant locations and/or spread fire. Can decompose at high temperature forming carbon monoxide, carbon dioxide, reactive hydrocarbons, low molecular weight aldehydes (e.g. acetaldehyde) and other irritating and toxic vapors, fumes and smoke. Closed containers may rupture and explode in the heat of a fire. Confined space hazard. Can accumulate in confined spaces, producing a fire/toxicity hazard. Mild central nervous system depressant. High vapor concentrations may cause headache, nausea, dizziness, drowsiness, incoordination and confusion. SKIN IRRITANT. Causes severe skin irritation. Aspiration hazard. Swallowing or vomiting of the liquid may result in aspiration (breathing) into the lungs. POSSIBLE TERATOGEN/EMBRYOTOXIN - may harm the unborn child, based on animal information. GHS LABELING SYMBOLS: SIGNAL WORD: DANGER HAZARD STATEMENTS: Flammable liquid and vapor. May be fatal if swallowed and enters airways. Harmful in contact with skin. Causes skin and eye irritation. Harmful if inhaled. May cause drowsiness or dizziness. Suspected of causing cancer. Static accumulating flammable liquid can become electrostatically charged even in bonded and grounded equipment. Toxic to aquatic life. PRECAUTIONARY STATEMENTS: Keep away from heat/sparks/open flames/hot surfaces. No smoking. Keep container tightly closed. Ground/bond container and receiving equipment. Use explosion-proof electrical/ ventilating/ lighting/ equipment. Use only non-sparking tools. Take precautionary measures against static discharge. Avoid breathing dust/ fume/ gas/ mist/ vapors/ spray. Wash skin thoroughly after handling. Use only outdoors or in a well-ventilated area. Avoid release to the environment. Wear protective gloves/ eye protection/ face protection. IF ON SKIN (or hair): Remove/ Take off immediately all contaminated clothing. Rinse skin with water/ shower. IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing. Call a POISON CENTER or doctor/ physician if you feel unwell. If skin irritation occurs: Get medical advice/ attention. Take off contaminated clothing and wash before reuse. In case of fire: Use dry sand, dry chemical or alcohol-resistant foam for extinction. Store in a well-ventilated place. Keep cool. Dispose of contents/ container to an approved waste disposal plant. For IATA Proper Shipping Name and identification, refer to Section 15 of this text. Please refer to Section 11 & 15 for Health Hazard information. SECTION 3: COMPOSITION / INFORMATION ON INGREDIENTS Chemical Name CAS Num OSHA PEL/TWA ACGIH TLV/TWA % WT Chemical Formula 3-Ethyl Toluene C9-H12 Page 1 of 17

2 1,3,5 Trimethylbenzene Not established 25 ppm 1+ C9-H12 1,2,4 Trimethylbenzene C9H12 Toluene ppm (skin) 20 ppm 2+ C6H5CH3 p-xylene ppm (435 mg/m3) 100 ppm (CDA4) 3+ C8-H10 Benzene ppm * 0.5 ppm (skin) CDA1 2+ C6-H6 Ethylbenzene ppm (435 mg/m3) 20 ppm - CDA3 2+ C8-H10 Cumene ppm 50 ppm 1+ C9-H12 n-propylbenzene Not established Not established 2+ C9-H12 n-butylbenzene C10-H14 1,2,4,5-Tetramethylbenzene C10H14 Pentane ppm (2950 mg/m3) 1000 ppm 2+ C5-H12 Hexane ppm (1800 mg/m3) 50 ppm - skin 2+ C6-H14 n-heptane ppm (2000 mg/m3) 400 ppm 2+ C7-H16 n-dodecane Not established Not established 2+ C12-H26 Cyclohexane ppm (1050 mg/m3) 100 ppm 2+ C6-H12 n-octane ppm (2350 mg/m3) 300 ppm 2+ C8-H18 n-nonane Not established 200 ppm (CNS) 2+ C9-H20 n-decane Not established Not established 2+ C10-H22 n-undecane Not established Not established 1+ C11-H24 Isopentane ppm (2950 mg/m3) 1000 ppm 2+ C5-H12 2 Methyl Pentane Not established 500 ppm 1+ C6-H14 3 Methyl Pentane Not established 500 ppm 1+ C6-H14 2,2 Dimethyl Butane Not established 500 ppm 1+ C6-H14 2,3 Dimethyl Pentane Not established 400 ppm (heptane) 2+ C7-H16 2,4 Dimethyl Pentane Not established 400 ppm (heptane) 1+ C7-H16 2,2,4 Trimethyl Pentane ppm (2350 mg/m3) (octane) 300 ppm (octane, all isomers) 2+ C8-H18 2-Methyl-1-Heptene C8-H16 Isobutylbenzene C10H14 Methylcyclohexane ppm (2000 mg/m3) 400 ppm 2+ C7-H14 Ethylcyclohexane (C6H11)C2H5 Propylcyclohexane C9H18 n-butylbyclohexane Not established Not established 1+ C10-H20 n-pentylcyclohexane C11H22 n-pentylbenzene C11-H16 * Any component that comprises.1% or less, is not required to be listed individually on a SDS. Please consult the Certificate of Analysis for this information. SECTION 4: FIRST-AID MEASURES Inhalation: If large amounts inhaled, remove victim to fresh air. If breathing is difficult give oxygen. If breathing has stopped administer mouth-to-mouth resuscitation. Keep the affected person warm and at rest. Contact physician. Eye Contact: Contamination of the eyes should be treated by immediate and prolonged irrigation with copious amounts of lukewarm water by separating the eyelids with fingers. Contact physician. Skin Contact: In case of contact, immediately wash skin with soap and copious amounts of lukewarm water. Ingestion: If swallowed, get medical attention immediately. Do NOT induce vomiting. Never give anything by mouth to an unconscious person. SECTION 5: FIRE-FIGHTING MEASURES Flash Point (Method): Various mixture Flammable Limits: LEL () LEL () Extinguishing Media: Carbon dioxide, dry chemical powder, Halon, water spray or standard foam. Special Fire Fighting Procedures: Wear full protective clothing and self-contained positive pressure breathing apparatus certified by NIOSH, when fighting chemically related fires. Unusual Fire and Explosion Hazards: Flammable. Vapor may travel considerable distance to source of ignition and flash back. Container explosion may occur under fire conditions. Use water spray to cool unopened containers. SECTION 6: ACCIDENTAL RELEASE MEASURES Procedure for Spill Control: Shut off all sources of ignition. Restrict access to area until completion of clean-up. Ventilate area. Notify government occupational health and safety and environmental authorities. Personal Procedure: Wear appropriate respiratory and personal protective equipment when engaged in clean-up outside of hood. Page 2 of 17

3 Clean-Up Procedure: Absorb with non-combustible absorbent. Place leaking ampoules in a plastic bag containing absorbent and dispose of as hazardous waste. SECTION 7: HALING A STORAGE Handling: Adequate ventilation is required to protect personnel from exposure to chemical vapors exceeding PEL and to minimize fire hazards. Safety glasses are considered minimum protection. The choice of protective gloves or clothing must be based on chemical-resistance and other user requirements. Chemicalresistant protective gloves and clothing are recommended. Remove and wash contaminated clothing promptly. Storage: Store in a cool dry place. Keep away from heat, sparks, open flame, and oxidizing agents. Proper storage must be determined based on other materials stored and their hazards and potential chemical incompatibility. Store in an acceptable, protected and secure, Flammable Liquid Storage cabinet or room. SECTION 8: EXPOSURE CONTROLS / PERSONAL PROTECTION Respiratory: Use NIOSH approved respirator equipment. Eyes: Chemical safety goggles or face shield may be necessary depending on quantity of material and conditions of use. Emergency eye wash fountains should be available in the vicinity of any possible exposure. Skin: Generally, BUNA-N offers acceptable chemical resistance. Individuals who are acutely and specifically sensitive to this chemical may require additional protective clothing. For OSHA s PEL/TLV information, please refer to Section 3. SECTION 9: PHYSICAL & CHEMICAL PROPERTIES Specific Gravity (H20 = 1): Various mixture Evaporation Rate (n-butyl acetate = 1): Various mixture Boiling Point ( C): Various mixture Vapor Pressure: Various mixture Vapor Density (Air = 1): Various mixture Solubility (Miscible) in Water: Insoluble (no data) Soluble (no data) Appearance & Odor: Clear liquid with a strong gasoline odor. SECTION 10: STABILITY & REACTIVITY Stability: Stable (X) Unstable () Conditions to Avoid: Heat, sparks, open flame, and poor ventilation. Do not leave this material, or any other, in an open container. User must follow all proper handling, storage and safety measures. Incompatibility (Materials to Avoid): STRONG OXIDIZING AGENTS (e.g. peroxides, nitrates and perchlorates) can increase risk of fire and explosion. Hazardous Decomposition or By-products: During a fire, carbon monoxide, carbon dioxide, irritating aldehydes and ketones and other irritating/toxic gases may be generated. SECTION 11: TOXICOLOGOCIAL INFORMATION Inhalation? YES Skin? YES Ingestion? YES Inhalation: Symptoms of exposure may include lightheadedness; headache; nausea; numbness in the extremities; muscle weakness and irritation to mucous membranes. Eye Contact: Vapor or mist is irritating to the eyes. Skin Contact: Contact with skin may cause dermatitis. Ingestion: Harmful if swallowed. For more information on acute and chronic effects, and the numerical measures of toxicity, please refer to Section 15. *Note: Since other Agencies regulate this information, OSHA will not be enforcing Sections 12 through 15 (29 CFR (g)(2)). SECTION 12: ECOLOGICAL INFORMATION Toxicity: available. Biodegradability: available. Bioaccumulation: available. Mobility in soil: available. Results of PBT and vpvb assessment: PBT/vPvB assessment not available as chemical safety assessment not required/not conducted. Other adverse effects: available. SECTION 13: DISPOSAL CONSIDERATIONS Waste Disposal: Burn in a chemical incinerator equipped with an afterburner and scrubber. If contaminated with other chemicals, fully comply with all Federal, State, and Local regulations prior to disposal. SECTION 14: TRANSPORT INFORMATION All of Spectrum Quality Standards products are shipped following proper IATA regulations. Spectrum Quality Standards Part Number: PIANO-1, PIANO-10 DOT (US) UN number: 1993 Class: 3 Packing group: II Proper shipping name: Flammable Liquid, n.o.s. (Benzene, p- Xylene, ) IMDG UN number: 1993 Class: 3 Packing group: II Proper shipping name: Flammable Liquid, n.o.s. (Benzene, p- Xylene, ) IATA UN number: 1993 Class: 3 Packing group: II Proper shipping name: Flammable Liquid, n.o.s. (Benzene, p- Xylene, ) This item is considered Dangerous Goods in Excepted Quantities by IATA regulation. Quantities exceeding 500 ml may be shipped as Dangerous Goods. Please contact us for more information if needed. SECTION 15: REGULATORY INFORMATION (per chemical) The IATA Packing Instruction and Authorization is dependent upon the quantity, which may vary. This information may be subject to change per size variations obtained, please verify information. Pentylbenzene NFPA Health: 0 - Exposure, under fire conditions, would be no more hazardous than an ordinary combustible material Page 3 of 17

4 26517 NFPA Flammability: 2 - This degree includes materials that must be moderately heated before ignition will occur and includes Class II and IIIA combustible liquids and solids and semi-solids that readily give off ignitible vapors. Water spray may be used to extinguish fires in these materials because the materials can be cooled below their flash points NFPA Instability: 0 - This degree includes materials that are normally stable, even under fire exposure conditions, and that do not react with water. Normal fire fighting procedures may be used List Former CAS Number: Molecular Formula: C11H16 Identification Number: UN3082 Flammability: 2 Hazard Class/Division: 9 Physical Hazards: 0 Packing Group: III OSHA Hazard Evaluation: Combustible Liquid No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. Methylcyclohexane No Data NOT FOU NFPA Health: 2 - Intense or continued exposure could cause temporary incapacitation or possible residual injury unless prompt medical attention is given NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C7H14 Identification Number: UN2296 Flammability: 3 B2: Flammable Liquid. No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. LD50 Oral - Mouse - 2,250 mg/kg LC50 Inhalation - Mouse - 2 h - 41,500 mg/m3 Ethylcyclohexane NFPA Health: 1 - Materials which on exposure would cause irritation but only minor residual injury even if no treatment is given. NFPA Instability: 0 - Materials which in themselves are normally stable, even under fire exposure conditions, and which are not reactive with water List Molecular Formula: C8H16 EPA Flags: P Identification Number: UN1993 Flammability: 3 B-2: Flammable liquid with a flash point lower than 35 C (100 F). Page 4 of 17

5 No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. Propylcyclohexane NFPA Health: 0 - Exposure under fire conditions would offer no hazard beyond that of ordinary combustible materials. NFPA Instability: 0 - Materials which in themselves are normally stable, even under fire exposure conditions, and which are not reactive with water Identification Number: UN3295 Flammability: 3 WHMIS CLASS B-2: Flammable liquid with a flash point lower than 35 C (100 F No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. Butylcyclohexane NFPA Health: 0 - Exposure, under fire conditions, would be no more hazardous than an ordinary combustible material. (isobutylcyclohexane and tert-butylcyclohexane) Not assigned. (n-butylcyclohexane and sec-butylcyclohexane) NFPA Flammability: 1 - Must be preheated before ignition can occur. (n-) 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. (sec-) Not assigned. (Iso and tert-) NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water. (n-, iso, sec- and tert-) Submitter Name: Cyclohexane, butyl-; 1-Cyclohexylbutane Identification Number: UN3295 Flammability: 2 Molecular Formula: C10H20 B3 - Flammable and combustible material - Combustible liquid There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has no listing for this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. Pentylcyclohexane NFPA Health: 2 - Intense or continued exposure could cause temporary incapacitation or possible residual injury unless prompt medical attention is given. NFPA Flammability: 0 - Materials that will not burn NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Submitter Name: 1-Cyclohexylpentane Molecular Formula: C11H22 Identification Number: UN3082 Flammability: 0 Hazard Class/Division: 9 Physical Hazards: 0 Page 5 of 17

6 No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. 2,3-Dimethylpentane NFPA Health: 2 - Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C7H16 Identification Number: UN1206 Flammability: 3 There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has not assigned a carcinogenicity designation to this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. No reports of animal studies with exposure to 2,3-dimethylpentane were located. The related material, n-heptane, has very low toxicity by any route of exposure (oral, dermal or inhalation). Large exposures were required to produce depression of the central nervous system (incoordination, coma, death) in short-term studies. No major toxic effects were reported in long-term animal studies with n-heptane. 2,2,4-Trimethylpentane 4412 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Former CAS Number: Molecular Formula: C8H18 Identification Number: UN1262 Flammability: 3 CERCLA RQ: 1,000. No human or animal information was located. No human or animal information was located. Isopentane NFPA Flammability: 4 - Will rapidly or completely vaporize at atmospheric pressure and normal ambient temperature, or readily disperse in air and burn readily NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Status: Found * CAA: 10,000 Page 6 of 17

7 Identification Number: UN1265 Flammability: 4 Former CAS Number: ; Molecular Formula: C5H12 Packing Group: I, II OSHA Hazard Evaluation: Meets criteria for hazardous material, as defined by 29 CFR No specific information. Probably not carcinogenic. LC50 (mouse): 140,000 ppm (2-hour exposure) 2-Methylpentane NFPA Health: 1 - Exposure would cause significant irritation, but only minor residual injury NFPA Flammability: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions 2964 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water List Identification Number: UN1208 Flammability: 3 Submitter Name: Chemical Substance Definition: Former CAS Number: Molecular Formula: C6H14 List Insufficient data. IARC, ACGIH, and NTP have not evaluated the carcinogenicity of this chemical. No standard animal toxicity values are available. 3-Methylpentane 2482 NFPA Health: 1-Materials that, on exposure, would cause significant irritation, but only minor residual injury, including those requiring the use of an approved air-purifying respirator. These materials are only slightly hazardous to health; only breathing protection is needed. NFPA Flammability: 3-This degree includes Class IB and IC flammable liquids and materials that can be easily ignited under almost all normal temperature conditions. Water may be ineffective in controlling or extinguishing fires in such materials. NFPA Instability: 0-This degree includes materials that are normally stable, even under fire exposure conditions, and that do not react with water. Normal fire fighting procedures may be used. 2 Identification Number: UN1208 Flammability: 3 Molecular Formula: C6H14 Packing Group: II OSHA Hazard Evaluation: Flammable Liquid, Irritant NTP/ROC: Not a confirmed human carcinogen. This chemical is not specifically listed in the Canadian Transportation of Dangerous Goods Regulations. This product is not a confirmed human carcinogen by IARC, ACGIH, or OSHA 2,2-Dimethylbutane NFPA Health: 2 Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury 1923 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * Molecular Formula: C6H14 Page 7 of 17

8 Identification Number: UN1208 Flammability: 3 B2 Flammable and combustible material Flammable Liquid Insufficient data. Probably not carcinogenic. The International Agency for No standard animal toxicity values are available. The branched hexanes are Research on Cancer (IARC) has not evaluated the carcinogenicity of this considered to be much less toxic than n-hexane. Neohexane is probably chemical. The American Conference of Governmental Industrial Hygienists similar in toxicity to the other branched hexanes which do not produce (ACGIH) has not assigned a carcinogenicity designation to this chemical. The neurobehavioral changes or show signs of peripheral neuropathy.(3) Toxicity US National Toxicology Program (NTP) has not listed this chemical in its report by most routes of exposure is probably relatively low. Like related petroleum on carcinogens. solvents, aspiration can probably cause severe lung damage or death. 2,4 Dimethylpentane NFPA Health: 2 - Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C7H16 Identification Number: UN1206 Flammability: 3 There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has not assigned a carcinogenicity designation to this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. No reports of animal studies with exposure to 2,4-dimethylpentane were located. The related material, n-heptane, has very low toxicity by any route of exposure (oral, dermal or inhalation). Large exposures were required to produce depression of the central nervous system (incoordination, coma, death) in short-term studies. No major toxic effects were reported in long-term animal studies with n-heptane. 2-Methyl-1-Heptene NFPA Health: 0 - Exposure under fire conditions would offer no hazard beyond that of ordinary combustible materials. NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Identification Number: UN3295 Flammability: 3 B2: Flammable Liquid. No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. Page 8 of 17

9 Isobutylbenzene NFPA Health: 2 Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury. NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high temperature before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C10H14 Identification Number: UN3295 Flammability: 2 B2: Flammable Liquid. No component of this product present at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, & OSHA. Octane 2482 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Former CAS Number: Molecular Formula: C8H18 Identification Number: UN1262 Flammability: 3 D2B - Poisonous and infectious material - Other effects Toxic No component of this product presents at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, or OSHA. Nonane LC50 (rat): ppm (4-hour exposure); cited as 118 g/m3) (4- hour exposure) 3209 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C9H20 EPA Flags: T Identification Number: UN1920 Flammability: 3 D2B - Poisonous and Infectious material - Other Effects - Toxic NTP/ROC: The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. Insufficient information. Probably not carcinogenic. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this LC50 (rat): 3200 ppm (4-hr exposure) (1,9) LD50 (oral, rat): greater than 15 g/kg (4, unconfirmed) Page 9 of 17

10 chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has not assigned a carcinogenicity designation to this chemical. n-decane NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Status: Not Found Identification Number: UN2247 Flammability: 2 B3 - Flammable and combustible material - Combustible liquid D2B - Poisonous and infectious material - Other effects Toxic There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has no listing for this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. Undecane LC50 (mouse): mg/m3, 2-hour exposure (probably an aerosol as this is above the saturated vapor concentration) (4, unconfirmed) Anesthetic dose in mice was 582 mg/kg (2) NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C11H24 Identification Number: UN2330 Flammability: 2 B3 - Flammable and combustible material - Combustible liquid D2B - Poisonous and infectious material - Other Effects Toxic NTP/ROC: The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has no listing for this chemical. 3-Ethyl Toluene No quantitative data available. n-undecane is probably similar in toxicity to related hydrocarbons such as decane and dodecane. Toxicity by most routes probably is relatively low. Concentrated vapours may have an anesthetic effect. Anesthetic dose in mice was 100 mg/kg. NFPA Health: 0 - Exposure under fire conditions would offer no hazard beyond that of ordinary combustible materials. NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur. NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Identification Number: UN3295 Flammability: 2 Page 10 of 17

11 CLASS B-3: Combustible liquid with a flash point between 37.8 C (100 F) and 93.3 C (200 F). No specific information is available in our data base regarding the toxic effects of this material for humans. However, exposure to any chemical should be kept to a minimum. Skin and eye contact may result in irritation. May be harmful if inhaled or ingested. Always follow safe industrial hygiene practices and wear proper protective equipment when handling this compound. Follow safe industrial hygiene practices and always wear proper protective equipment when handling this compound. 1,2,4,5-Tetramethylbenzene NFPA Health: 0 NFPA Flammability: NFPA Instability: 3 Toxicity to fish LC50 - Pimephales promelas (fathead minnow) mg/l h FOU Molecular Formula: C10H14 Identification Number: UN1325 Flammability: 3 Hazard Class/Division: 4.1 Physical Hazards: 3 Packing Group: II OSHA Hazard Evaluation: IARC: IARC. ACGIH: NTP: OSHA: LD50 Oral - rat - 6,989 mg/kg No component of this product present at levels greater than or equal to 0.1% is identified as a carcinogen or potential carcinogen. n-butylbenzene 2796 NOT FOU NFPA Health: 1- Materials that, on exposure, would cause significant irritation, but only minor residual injury, including those requiring the use of an approved air-purifying respirator. These materials are only slightly hazardous to health and only breathing protection is needed. NFPA Flammability: 2 - This degree includes materials that must be moderately heated before ignition will occur and includes Class II and IIIA combustible liquids and solids and semi-solids that readily give off ignitible vapors. Water spray may be used to extinguish fires in these materials because the materials can be cooled below their flash points. NFPA Instability: 0 - This degree includes materials that are normally stable, even under fire exposure conditions, and that do not react with water. Normal fire fighting procedures may be used List Former CAS Number: Molecular Formula: C10H14 Identification Number: UN2709 Flammability: 2 Packing Group: III OSHA Hazard Evaluation: Combustible Liquid B3 Combustible Liquid The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has designated this chemical as not classifiable as a human carcinogen (A4). The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. LD50 Mouse sc mg/kg NOT FOU n-propylbenzene NFPA Flammability: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions Page 11 of 17

12 2763 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * List Former CAS Number: Molecular Formula: C9H12 Identification Number: UN2364 Flammability: 2 Packing Group: III OSHA Hazard Evaluation: Combustible Liquid The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has no listing for this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. 1,3,5 Trimethylbenzene NOT FOU LC50 (rat): mg/m3 (4-hour exposure); cited as ppm (2-hour exposure) LD50 (oral, rat): 6040 mg/kg *LC50, LD50 (oral), LD50 (dermal) NFPA Health: 2 - Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury. NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C9H12 Identification Number: UN2325 Flammability: 1 B3 - Flammable and combustible material - Combustible liquid Does not meet criteria. Not included in standard reference lists. LC50 (rat): 24 g/m3 (4-hour exposure) Lethal concentration (rat): 2240 ppm (24-hour exposure); lethal to 4 of 16 test animals. Lethal dose (oral, rat): 23 g/kg; lethal to 7 of 10 test animals. Death due to respiratory failure and CNS depression. 1,2,4 Trimethylbenzene NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * Molecular Formula: C9H12 Identification Number: UN3295 Flammability: 2 S313: 313 B3 - Flammable and combustible material - Combustible liquid The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. LC50 (rat): 18 g/m3 (4-hour exposure) (1) LD50 (oral, rat): 5000 mg/kg Page 12 of 17

13 Toluene NFPA Health: 2 Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury. NFPA Flammability: 3 Liquids and solids that can be ignited under almost all ambient temperature conditions NFPA Instability: 0 Normally stable, even under fire conditions, and not reactive with water Status: Found * Molecular Formula: C7H8 Identification Number: UN1294 Flammability: 3 CERCLA RQ: 1,000 S313: 313 RCRA CODE: U220 B2 Flammable and combustible material Flammable liquid D2A Poisonous and infectious material Other effects Very toxic D2B Poisonous and infectious material Other effects Toxic Among 61 painters inhaling ppm toluene for 2 wk to 5 yr, depressed erythrocyte counts with elevated hemoglobin, mean corpuscular volumes, and elevated mean corpuscular hemoglobin were found in 5% to 30% compared with groups of workers not known to be exposed to toluene; differential leukocyte counts were not significantly different between the toluene-exposed and the reference workers. p-xylene LD50 Rat oral 2.6 to 7.5 g/kg LD50 Rabbit dermal 14.1 ml/kg LD50 Rat (female) ip 1.64 g/kg LD50 MOUSE IP 1.15 G/KG LD50 Rat oral 5000 mg/kg LD50 Rat ip 1332 mg/kg LD50 Rat iv 1960 mg/kg LC50 Mouse ihl 400 ppm/24 hr LD50 Mouse ip 59 mg/kg LD50 Mouse sc 2250 mgkg LD50 Mouse ip 640 mg/kg LD50 Rabbit skin 12,124 mg/kg The LC50 for toluene in mice is 5320 ppm, 8 hr via inhalation. As the duration of toluene inhalation exposure increased, the LC50 in rats decreased from 26,700 ppm for 1 hr, to 12,200 ppm for hr, to 8000 ppm for 4 hr. NFPA Health: 2 - Materials which on intense or continued exposure could cause temporary incapacitation or possible residual injury unless prompt medical treatment is given NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water. (Mineral oil) * Status: Found CERCLA RQ: 100 S313: 313 Identification Number: 1307 Flammability: 3 RCRA CODE: U239 List CERCLA RQ: 100 S313: X RCRA CODE: U239 Packing Group: II, III OSHA Hazard Evaluation: Meets criteria for hazardous material, as defined by 29 CFR Label(s): 3 Flammable Liquid D2A - Poisonous and infectious material - Other effects - Very toxic D2B - Poisonous and infectious material - Other effects - Toxic Not classifiable as to carcinogenicity to humans (p-xylene). Benzene LC50 (rat): 4740 ppm LC50 (male rat): 5625 ppm LC50 (female mouse): 4785 ppm LD50 (oral, rat): 4030 mg/kg NFPA Health: 1 Exposure would cause significant irritation, but only minor residual injury. NFPA Flammability: 3 Liquids and solids that can be ignited under almost all ambient temperature conditions NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Status: Found Page 13 of 17

14 * Former CAS Number: ; Identification Number: UN1114 Flammability: Molecular Formula: C6H6 CERCLA RQ: 10 S313: 313 RCRA CODE: U019 Label(s): 3-Flammable Liquid B2 Flammable and combustible material Flammable liquid D2A Poisonous and infectious material Other effects Very toxic D2B Poisonous and infectious material Other effects Toxic Benzene is irritant to skin, & by defatting the keratin layer may cause erythema, vesiculation, & dry & scaly dermatitis. After a short exposure to a large amount of Benzene by ingestion or breathing concentrated vapors, the major toxic effect is on the CNS. Symptoms from mild exposure include dizziness, weakness, euphoria, headache, nausea, vomiting, tightness in chest, & staggering. If exposure is more severe, symptoms progress to blurred vision, tremors, shallow & rapid respiratory, ventricular irregularities, paralysis, & unconsciousness. Ethylbenzene LC50 (rat): ppm (4-hour exposure) LC50 (mouse): ppm (4-hour exposure); cited as 9980 ppm (7-hour exposure) LD50 (oral, rat): 930 mg/kg LD50 (oral, 14-day rat): 2990 mg/kg (cited as 3.4 ml/kg) LD50 (oral, mature rat): 4920 mg/kg (cited as 5.6 ml/kg) LD50 (oral, mouse): 4700 mg/kg LD50 (oral, mouse): 8438 mg/kg (evaluated as reliable with restrictions) LD50 (dermal, rabbit): greater than 8240 mg/kg (cited as greater than 9.4 ml/kg) LD50 (dermal, guinea pig): greater than 8240 mg/kg (cited as greater than 9.4 ml/kg) LD50 (dermal, mouse): 48 mg/kg (this value is likely not valid; it is cited to a secondary source and cannot be confirmed) NFPA Health: 2 - Materials which on intense or continued exposure could cause temporary incapacitation or possible residual injury unless prompt medical treatment is given NFPA Flammability: 3 - Liquids and solids that can be ignited under almost all ambient temperature conditions 2638 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * Status: Found Molecular Formula: C8H10 EPA Flags: T Identification Number: UN1175 Flammability: 3 Hazard Class/Division: 3 Reactivity: 0 CERCLA RQ: 1,000 S313: 313 D2A - Poisonous and infectious material - Other effects - Very D2B - Poisonous and infectious material - Other effects - Toxic Ethylbenzene is considered possibly carcinogenic to humans, based on animal evidence. No conclusions can be drawn from a human study where there was exposure to ethylbenzene and several other chemicals at the same time. Another human study reported no cases of malignancy in employees exposed to ethylbenzene for up to 20 years. However, no exposure information was reported and the exposure duration and follow-up period may be too short to detect any possible carcinogenicity. Cumene 2575 toxic LD50 Rat oral 5.46 g/kg LD50 Rat oral 3500 mg/kg LD50 Mouse ip 2272 mg/kg LD50 Rabbit skin 17,800 mg/kg NFPA Health: 2 - Intense or continued (but not chronic) exposure could cause temporary incapacitation or possible residual injury. NFPA Instability: 1 - Normally stable, but can become unstable at elevated temperatures and pressures, or may react vigorously, but non-violently with water Molecular Formula: C9H12 Identification Number: UN1918 Flammability: 2 Hazard Class/Division: 3 Ractivity: 1 CERCLA RQ: 5,000 S313: 313 RCRA CODE: U055 Page 14 of 17

15 The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has not assigned a carcinogenicity designation to this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. LC50 (inhalation, mouse): 10 mg/l; (2000 ppm); 7-hr exposure LC50 (inhalation, rat): 39 mg/l (8000 ppm); 4-hr exposure LD50 (oral, rat): Reported as 1.4 g/kg and 2.26 g/kg LD50 (skin, rabbit): mg/kg Cyclohexane 2482 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C6H12 Identification Number: UN1145 Flammability: 3 CERCLA RQ: 1,000 S313: 313 RCRA CODE: U056 D2B - Poisonous and infectious material - Other effects Toxic No component of this product presents at levels greater than or equal to 0.1% is identified as probable, possible or confirmed human carcinogen by IARC, ACGIH, NTP, or OSHA. Dodecane LC50 (rat): greater than 9500 ppm (4-hour exposure); at 9500 ppm for 4 hours there were no deaths LD50 (oral, 14-day old rat): 6200 mg/kg (cited as 8.0 ml/kg) LD50 (oral, young adult rat): mg/kg (cited as 39.0 ml/kg) LD50 (oral, older rat): mg/kg (cited as 16.5 ml/kg) LD50 (oral, mouse): 813 mg/kg LD50 (dermal, rabbit): greater than 2000 mg/kg (at 2000 mg/kg there were no deaths) NFPA Flammability: 2 - Must be moderately heated or exposed to relatively high ambient temperatures before ignition can occur NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water Molecular Formula: C12H26 Identification Number: G Flammability: 2 Hazard Class/Division: G Physical Hazards: 0 Packing Group: G OSHA Hazard Evaluation: Combustible Liquid Label(s): Not dangerous goods B3 - Flammable and combustible material - Combustible liquid NTP/ROC: No component of this product present at levels greater than or equal to 0.1% is identified as a known or anticipated carcinogen by NTP. There is no human or animal information available. The International Agency for Research on Cancer (IARC) has not evaluated the carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has no listing for this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. Heptane 3902 NFPA Instability: Not assigned. Limited information is available. n-dodecane is probably similar in toxicity to related hydrocarbons. Toxicity by most routes probably is relatively low. Page 15 of 17

16 * Former CAS Number: ; Identification Number: UN1206 Flammability: 3 Molecular Formula: C7H16 D2B - Poisonous and infectious material - Other effects Toxic NTP/ROC: The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. n-heptane is not known to be a carcinogen. No human or animal information was located. Hexane NFPA Health: Not assigned. LC50 (rat): greater than ppm (4-hour exposure); 0/10 rats died; evaluated as reliable with restrictions (25, unconfirmed) LC50 (rat): approximately ppm (4-hour exposure); cited as 103 g/m3 (4- hour exposure) (3-,6-unconfirmed) LD50 (oral, rat): greater than mg/kg (4, unconfirmed) LD50 (oral, rat): greater than mg/kg (26, unconfirmed) 3123 NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * Former CAS Number: Molecular Formula: C6H14 Identification Number: UN1208 Flammability: 3 Status: List CERCLA RQ: 5,000 S313: 313 D2A - Poisonous and infectious material - Other effects - Very toxic D2B - Poisonous and infectious material - Other effects - Toxic Inhalation of 5000 ppm for 10 minutes produces marked vertigo; LC50 (male rat): ppm (4-hour exposure); cited as ppm (1-hour ppm for 12 hours produces drowsiness, fatigue, loss of appetite, paresthesia in exposure) distal extremities; ppm produces muscle weakness, cold pulsation in LC50 (rat): ppm (4-hour exposure) (n-hexane and isomers) extremities, blurred vision, headache, anorexia, and onset of polyneuropathy. LC50 (rat): ppm (4-hour exposure) (16, unconfirmed) Slightly toxic by ingestion and inhalation; Human systemic effects include: LD50 (oral, 14-day-old male rat): mg/kg (cited as 24 ml/kg; hexane, hallucinations, structural change in nerve or sheath... may be irritating to analytical grade, composition not specified; 7-day observation period) respiratory tract and narcotic in high concentrations. Nerve conduction blocks, LD50 (oral, young adult male rat): mg/kg (cited as 49 ml/kg; hexane, defined by a significant reduction in amplitude or area of the compound muscle analytical grade, composition not specified; 7-day observation period) action potential at proximal compared with distal sites of stimulation, have LD50 (oral, older adult male rat): mg/kg (cited as 43.5 ml/kg; hexane, been described in glue-sniffers and in workers with industrial exposure at an analytical grade, composition not specified; 7-day observation period) early stage of n-hexane neuropathy. n-hexane is not known to cause cancer. LD50 (dermal, rabbit): greater than 3295 mg/kg (cited as greater than 5 ml/kg) Pentane NFPA Flammability: 4 - Will rapidly or completely vaporize at atmospheric pressure and normal ambient temperature, or readily disperse in air and burn readily NFPA Instability: 0 - Normally stable, even under fire conditions, and not reactive with water * Former CAS Number: Molecular Formula: C5H12 Identification Number: UN1265 Flammability: 4 EPA Flags: T CAA: 10,000 Page 16 of 17

17 There is no specific human or animal information available for n-pentane. n- LC50 (rat): greater than 6106 ppm (4-hour exposure) (7, unconfirmed) Pentane may contain small amounts of benzene, a known human carcinogen. LC50 (rat): ppm (4-hour exposure); cited as 364 gm/m3 (4-hour Consult your supplier regarding the purity of the material you are using. The exposure) (12, unconfirmed) International Agency for Research on Cancer (IARC) has not evaluated the LD50 (oral, rat): greater than 2000 mg/kg (34) carcinogenicity of this chemical. The American Conference of Governmental Industrial Hygienists (ACGIH) has not assigned a carcinogenicity designation to this chemical. The US National Toxicology Program (NTP) has not listed this chemical in its report on carcinogens. SECTION 16: OTHER INFORMATION DISCLAIMER: This Material Safety Data Sheet is offered without charge to the clients of Spectrum Quality Standards. Data is the most current available to Spectrum at the time of preparation and is issued as a matter of information only, no warranty as to its accuracy or completeness is expressed or implied. Unless otherwise noted, the above information pertains only for the solvent and similar types of components in the sample. Per GHS & OSHA requirements, please note that Spectrum Quality Standards does not manufacture pure components but rather blend existing components to create ASTM approved standards. When no toxicity data is provided, it is prudent to handle this chemical as hazardous. Furthermore, since individual chemical hypersensitivity cannot be predicted, every chemical should be handled with due respect. Page 17 of 17