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General Description
Synonyms: Asphalt: Asphaltum, Bitumen (European term), Petroleum asphalt, Petroleum bitumen, Road asphalt, Roofing asphalt
OSHA IMIS Code Number: 0290
Chemical Abstracts Service (CAS) Registry Number: 8052-42-4
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: CI9900000
Department of Transportation Regulation Number (49 CFR 172.101) and guide [2008 Emergency Response Guidebook, 2.5 MB PDF]: 1999 130 (asphalt)
NIOSH Pocket Guide to Chemical Hazards, Asphalt Fumes: chemical description, physical properties, potentially hazardous incompatibilities, and more
Exposure Limits
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.5 mg/m3 TWA (Inhalable fraction; see Appendix C, paragraph A); Appendix A4 - Not Classifiable as a Human Carcinogen; BEIP (See BEI® for Polycyclic Aromatic Hydrocarbons (PAHs))
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 Ceiling (15 min); Appendix A - NIOSH Potential Occupational Carcinogens
Health Factors
Potential symptoms: dermatitis; acne-like lesions; CHRONIC: mild keratoses
Health Effects: Skin Irritant (HE16)
Affected organs: eyes; skin; respiratory system
Date Last Revised: 1/22/2010
Literature Basis:
Monitoring Methods used by OSHA
Laboratory Sampling/Analytical Method:
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sampling media: Tared Polytetrafluoroethylene (PTFE) filter, 2 μm, 37 mm
maximum volume: 960 Liters maximum flow rate: 2.0 L/min
current analytical method: Gravimetric / Benzene Solubles / High Performance Liquid Chromatography; HPLC/UV/FLU
method reference: NIOSH Analytical Method (NIOSH 5042) [36 KB, PDF, 7 pages]
method classification: Partially Validated
note: OSHA personnel must obtain tared PTFE filters from SLTC. The sample will be weighed and the concentration of the collected material determined. If the concentration is over 0.4 mg/m3, the filter will be extracted with benzene to determine the concentration of the soluble material.
Wipe Sampling Method:
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sampling media: Glass Fiber Filter
analytical solvent: Dry
Bulk method: Limit the amount of bulk submitted to one gram or one mL.
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