Asbestos
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CAS
1332-21-4
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Hydrated mineral silicates
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RTECS
CI6475000
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Synonyms & Trade Names
Actinolite, Actinolite asbestos, Amosite (cummingtonite-grunerite), Anthophyllite, Anthophyllite asbestos, Chrysotile, Crocidolite (Riebeckite), Tremolite, Tremolite asbestos
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DOT ID & Guide
2212 / 171 (blue, brown)
2590 / 171 (white)
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Exposure
Limits
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NIOSH REL: Ca See Appendix A See Appendix C
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OSHA PEL: [1910.1001] [1926.1101] See Appendix C
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IDLH
Ca [N.D.]
See: IDLH INDEX
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Conversion
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Physical Description
White or greenish (chrysotile), blue (crocidolite), or gray-green (amosite) fibrous, odorless solids.
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MW: Varies
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BP: Decomposes
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MLT: 1112°F (Decomposes)
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Sol: Insoluble
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VP: 0 mmHg (approx)
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IP: NA
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Sp.Gr: ?
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Solids
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Incompatibilities & Reactivities
None reported
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Measurement Methods
NIOSH 7400, 7402; OSHA ID160, ID191
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: Daily
Remove: No recommendation
Change: Daily
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First Aid (See procedures)
Eye: Irrigate immediately
Breathing: Fresh air
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Respirator Recommendations (See Appendix E)
NIOSH
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
Escape:
(APF = 50) Any air-purifying, full-facepiece respirator with 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
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Asbestosis (chronic exposure): dyspnea (breathing difficulty), interstitial fibrosis, restricted pulmonary function, finger clubbing; irritation eyes; [potential occupational carcinogen]
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Target Organs
respiratory system, eyes
Cancer Site
[lung cancer]
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See also: INTRODUCTION See MEDICAL TESTS: 0019
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