ASBESTOS
SYNONYMS:
ACTINOLITE;
AMIANTHUS; AMOSITE; AMOSITEASBESTOS; AMPHBOLE; ANTHOPHYLITE; ANTHOPHYLLITE;
ASBEST (German); ASBESTO (Spanish); ASBESTOS FIBER; CHRYSOTILE; CROCIDOLITE
(RIEBECKITE); FIBROUS GRUNERITE; KROKYDOLITH (German); NCI C08991; SERPENTINE;
TREMOLITE
IDENTIFICATION:
CAS:
1332-21-4
(amianthus, amosite, amphibole); 12001-28-4 (crocidolite); 12001-29-5 (white
asbestos, chrysotile); 12172-73-5 (amosite); 77536-66-4 (actinolite);
77536-67-5 (antophylite); 77536-68-6 (tremolite)
DOT ID:
NA2212;
UN2590 [White asbestos (chrysotile, actinolite, anthophyllite, tremolite)]
Hazard Class or Division:
9 (MISC. HAZARDOUS MATERIALS)
ERG Guide:
171
RTECS No.:
CI6475000
Properties:
Fibrous
solids. Odorless. White or greenish (chrysotile); blue (crocidolite),
gray-green (amosite).
Uses:
May
be present in older machinery and shields.
HEALTH & SAFETY INFORMATION
• IARC:
Group
1; human carcinogen, sufficient human evidence.
• NTP:
Known
human carcinogen.
• IDLH:
Potential
human carcinogen.
•
OSHA Table Z-1 Air Contaminant
•
OSHA Specifically Regulated Substances (29 CFR 1910.1001-1048) as amosite.
Exposure Limits:
•
ACGIH TLV:* 0.1 fibers/cc TWA (all forms of asbestos); confirmed human
carcinogen.
•
NIOSH REL: Potential carcinogen. Reduce exposure to lowest feasible level.
•
OSHA PEL: Potential carcinogen. Reduce exposure to lowest feasible level. As
found in 29 CFR 1910.1001, the OSHA PEL for asbestos fibers (i.e., actinoliteasbestos, amosite, anthophylliteasbestos, chrysotile, crocidolite, and tremolite
asbestos) is an 8-hour TWA airborne concentration of 0.1 fibers (longer than 5
micrometers and having a length-todiameter ratio of at least 3:1) per cubic
centimeter of air (0.1 fiber/cm3), as determined by the membrane filter method
at approximately 400x magnification with phase contrast illumination. No worker
should be exposed in excess of 1 fiber/cm3 (excursion limit) as averaged over a
sampling period of 30 minutes. As found in 29 CFR 1910.1101, the OSHA PEL for
asbestos is an 8-hour airborne concentration of 2 fibers (longer than 5
micrometers and having a length-to-diameter ratio of at least 3:1) per cubic
centimeter of air (2 fibers/cm3, as determined by the membrane filter method at
approximately 400–450x magnification (4-millimeter objective) with
phasecontrast illumination. This standard applies in lieu of the revised
standard governing occupational exposure to asbestos (as defined in 1910.1001)
and the nonfibrous forms of tremolite, anthophyllite, and actinolite during the
period and to the extent that the revised standards have been partially stayed.
Respirator:
At
any concentrations above the NIOSH REL, or where there is no REL, at any
detectable concentration:
SCBAF:PD,PP
(any self-contained breathing apparatus that has a full facepiece and is
operated in a pressure-demand or other positivepressure mode)
P
SAF:PD,PP:ASCBA (any suppliedair 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 breathing apparatus operated in
a pressure-demand or other positive- pressure mode).
Escape:
HiEF (any airpurifying, full-facepiece
respirator with a highefficiency particulate filter)
P
SCBAE (any appropriate escape-type, self-contained breathing
apparatus).
FIRE INFORMATION:
If material or contaminated runoff enters waterways, notify
downstream users of potentially contaminated water.
FIRST AID:
Move
victim to fresh air. Call emergency medical care. Apply artificial respiration
if victim is not breathing. Administer oxygen if breathing is difficult. In
case of contact with substance, immediately flush skin or eyes with running
water for at least 20 minutes. Remove and isolate contaminated clothing and shoes.
Ensure that medical personnel are aware of the material(s) involved, and take
precautions to protect themselves.
ENVIRONMENTAL REGULATIONS
: (Friable form)
•
Clean Air Act: Hazardous Air Pollutants (Title I, Part A, Section 112).
•
Clean Water Act: Section 307 Priority Pollutants; Section 313 Priority
Chemicals; Toxic Pollutant (Section 401.15).
•
Safe Drinking Water Act: MCL, 7 million fibers/L (longer than 10 microns);
MCLG, 7 million fibers/L (longer than 10 microns); Regulated chemical (47 FR
9352).
•
EPCRA Section 304: Reportable Quantity (RQ): CERCLA, 1 lb (0.454 kg).
•
EPCRA Section 313: (Reportable only in friable form): Form R
de minimis
concentration reporting level: 0.1%.
•
California LOL: ABCDFGIKMNOQ
•
WHMIS, Ingredients Disclosure List (Canada): 0.1% as 1332-21-4