Chemical Sampling Information
	Petroleum Distillates (Naphtha) (Rubber Solvent)
Quick Links General Description Exposure Limits Health Factors Monitoring Search    [use word(s)/phrase ] Table of Contents By Name A B C D E F G H I J K L M N O P Q R S T U V W X Y Z By CAS Number General Description Synonyms: Aliphatic petroleum naphtha; Petroleum naphtha; Rubber solvent OSHA IMIS Code Number: 2037 Related Chemical Abstracts Service (CAS) Registry Number: 8002-05-9 (Petroleum distillates (naphtha)) NIOSH, Registry of Toxic Effects (RTECS) Identification Number: SE7449000 NIOSH Pocket Guide to Chemical Hazards, Petroleum distillates (naphtha): chemical description, physical properties, potentially hazardous incompatibilities, and more Exposure Limits OSHA Permissible Exposure Limit (PEL) for General Industry: 29 CFR 1910.1000 Z-1 Table -- 500 ppm, 2000 mg/m3 TWA OSHA Permissible Exposure Limit (PEL) for Construction Industry: 29 CFR 1926.55 Appendix A -- Gasoline and/or Petroleum distillates. The composition of these materials varies greatly and thus a single TLV for all types of these materials is no longer applicable. The content of benzene, other aromatics and additives should be determined to arrive at the appropriate TLV. (Footnote A3) OSHA Permissible Exposure Limit (PEL) for Maritime: 29 CFR 1915.1000 Table Z-Shipyards -- Gasoline and/or Petroleum distillates. The composition of these materials varies greatly and thus a single TLV for all types of these materials is no longer applicable. The content of benzene, other aromatics and additives should be determined to arrive at the appropriate TLV. (Footnote A3) National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 350 mg/m3 TWA; 1800 mg/m3 Ceiling (15 Minutes) Health Factors NIOSH Immediately Dangerous To Life or Health Concentration (IDLH): 1,100 ppm [LEL] Potential symptoms: Irritation of eyes, nose throat; dizziness, drowsiness; headache; nausea; dry cracked skin; chemical pneumonitis (from aspiration of liquid) Health Effects: Irritation – Eye, Throat--- Mild (HE 16); Narcosis (HE8); Explosive, Flammable (HE18) Affected organs: Eyes, skin, respiratory system, CNS Notes: NIOSH’s IDLH is 10% of the lower explosive limit. This mixture may contain n-hexane, which is metabolized to the neurotoxin 2,5-hexanedione (see CSI file on Hexane). One report indicated that petroleum ethers in the 60-80°C boiling range from two different suppliers both contained over 30% n-hexane (by volume). The severity of skin irritation, as measured by an increase in water vapor loss, increases with an increase in time of solvent contact with the skin. For example, a 30-minute contact time causes a greater loss of water vapor from forearm skin than a 20-minute contact time. Date Last Revised: 02/16/2006 Literature Basis: NIOSH Pocket Guide to Chemical Hazards: Petroleum distillates (naphtha). Creaser, C., Welch, J. and Bishop, K.: n-Hexane in petroleum ether fractions. Ann. Occup. Hyg. 27(2): 229-230, 1983. Ono, Y., Takeuchi, Y., Hisanaga, N., Iwata, M., Kitoh, J. and Sugiura, Y.: Neurotoxicity of petroleum benzine compared with n-hexane. Int. Arch. Occup. Environ. Health 50(3): 219-229, 1982. Pohanish, R.P. (editor): Naphthas. In, Sittig’s Handbook of Toxic and Hazardous Chemicals and Carcinogens, Fourth Ed., Vol. 2. Norwich, NY: Noyes Publications, William Andrew Publishing, 2002, pp. 1647-1650. Spruit, D., Malten, D.K.E., Lipmann, E.W.R.M. and Liang, T.P.: Horny layer injury by solvents. II. Can the irritancy of petroleum ether by diminished by pretreatment? Berufs-dermatosen 18(5): 269-280, 1970. Monitoring Methods used by OSHA Laboratory Sampling/Analytical Method: sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh) analytical solvent: Carbon Disulfide alternate analytical solvent: (99:1) Carbon Disulfide:Dimethylformamide maximum volume: 3 Liters   maximum flow rate: 0.2 L/min current analytical method: Gas Chromatography; GC/FID method reference: OSHA Analytical Method OSHA Analytical Method (OSHA 48) method classification: Fully Validated All Trademarks are the property of their respective owners.