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Chemical Sampling Information (CSI)
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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 of Chemical Substances (RTECS) Identification Number: CI9900000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 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

Literature Basis:

Date Last Revised: 01/22/2010

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • 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 the Salt Lake Technical Center. 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:

  • 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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