Synonyms & Trade NamesAsphaltum, Bitumen, Petroleum asphalt, Petroleum bitumen, Road asphalt, Roofing asphalt
See: IDLH INDEX
NIOSH RELCa C 5 mg/m3 [15-minute] See Appendix A, Appendix C
Physical DescriptionFumes generated during the production or application of asphalt (a dark-brown to black cement-like substance manufactured by the vacuum distillation of crude petroleum oil).
Molecular WeightProperties vary depending upon the specific asphalt formulation or mixture.
Incompatibilities & ReactivitiesNone reported [Note: Asphalt becomes molten at about 200°F.]
Exposure Routesinhalation, skin absorption, skin and/or eye contact
Symptomsirritation eyes, respiratory system; [potential occupational carcinogen]
Target OrgansEyes, respiratory system
Cancer Site[in animals: skin tumors]
Personal Protection/Sanitation(See protection codes)
Skin:Prevent skin contact
Eyes:Prevent eye contact
First Aid(See procedures)
At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration:
(APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter.
Click here for information on selection of N, R, or P filters.
Any appropriate escape-type, self-contained breathing apparatus
- Page last reviewed:April 11, 2016
- Page last updated:April 11, 2016
- Content source:
- National Institute for Occupational Safety and Health (NIOSH) Education and Information Division