NAME: Perlite (Total Dust)
SYNONYM(s):
Perlite (Less than 1% Quartz) prior to 9/1/89
IMIS: 2035
CAS: 93763-70-3
DESCRIPTION:
A hydrous glassy volcanic rock expanded at 1400-2500 F to form thin
flakes useful for their light weight.
Exposure Limits
OSHA GENERAL INDUSTRY PEL:
See Dust (Respirable Nuisance) or Dust, Total
ACGIH TLV:
10 mg/m3 TWA; The value is for particulate matter containing no
asbestos and <1% crystalline silica. Appendix A4 (Not Classifiable as
a Human Carcinogen)
NIOSH REL: 10 mg/m3 TWA
Health Factors
HEALTH EFFECTS:
Nuisance particulates-Accumulation in lungs (HE19)
Monitoring
PRIMARY SAMPLING/ANALYTICAL METHOD (SLC1):
See Particulates not otherwise regulated (Total Dust)
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