*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : VV7311000
CHEMICAL NAME : Silica, amorphous - diatomaceous earth
CAS REGISTRY NUMBER : 61790-53-2
OTHER CAS REGISTRY NOS. : 12750-99-1
29847-98-1
37337-67-0
54511-18-1
56748-40-4
67016-73-3
LAST UPDATED : 199712
DATA ITEMS CITED : 23
COMPOUND DESCRIPTOR : Tumorigen
SYNONYMS/TRADE NAMES :
* Celite
* Diatomaceous earth, natural
* Kieselguhr
* Silica, amorphous, diatomaceous earth, containing >1 % crystalline silica
* Silica, amorphous - diatomaceous earth (uncalcined)
*** REVIEWS ***
ACGIH TLV-TWA 3 mg/m3, total dust
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
ACGIH TLV-TWA 10 mg/m3, total dust
DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices
(BEIs) booklet issues by American Conference of Governmental Industrial
Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year:
TLV/BEI,1997
IARC Cancer Review:Animal Inadequate Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 42,39,1987
IARC Cancer Review:Human Inadequate Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 42,39,1987
IARC Cancer Review:Animal Inadeauate Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
IARC Cancer Review:Human Inadequate Evidence
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
IARC Cancer Review:Group 3
IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals
to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210)
V.1- 1972- Volume(issue)/page/year: 68,41,1997
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-dust in air:TWA 20 mccpf
DTLWS* "Documentation of the Threshold Limit Values for Substances in
Workroom Air," Supplements. For publisher information, see 85INA8.
Volume(issue)/page/year: 3,33,1973
OSHA PEL (Gen Indu):8H TWA 80 mg/m3/%SiO2
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1910.1000,1994
OSHA PEL (Construc):8H TWA 80 mg/m3/%SiO2
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1926.55,1994
OSHA PEL (Shipyard):8H TWA 20 mppcf/(%SiO2+5)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
29,1915.1000,1993
OSHA PEL (Fed Cont):8H TWA 20 mppcf/(%SiO2+5)
CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt.
of Documents, Washington, DC 20402) Volume(issue)/page/year:
41,50-204.50,1994
*** OCCUPATIONAL EXPOSURE LIMITS ***
OEL-GERMANY:TWA 4 mg/m3 JAN 1993
OEL-THAILAND:TWA 80 mg/m3 JAN 1993
OEL-UNITED KINGDOM:TWA 3 mg/m3 (resp. dust) JAN 1993
OEL-UNITED KINGDOM:TWA 6 mg/m3 (total dust) JAN 1993
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV
*** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO SILICA, amorphous,diatomaceous earth-air:TWA 6 mg/m3
REFERENCE :
NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of
Health, Education, and Welfare, Reports and Memoranda.
Volume(issue)/page/year: DHHS #92-100,1992
NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA :
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - X3017
No. of Facilities: 11151 (estimated)
No. of Industries: 109
No. of Occupations: 97
No. of Employees: 169362 (estimated)
No. of Female Employees: 24496 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
NIOSH Analytical Method, 1994: Silica, amorphous, 7501
*** END OF RECORD ***
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