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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 9040

Chemical Abstracts Service (CAS) Registry Number: 68131-74-8

Chemical Description and Physical Properties:
Solid
Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 2.4 mg/m3 TWA (Table Z-3 1910.1000)
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): See Coal Dust (IMIS C131)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 mg/m3 TWA

Health Factors

Health Effects: Pneumoconiosis (HE10)

Date Last Revised: 01/15/1993

NIOSH/OSHA/DOE Health Guideline: Coal Dust (< 5% SiO2)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Tared Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns preceded by 10 mm Nylon Cyclone
    maximum volume: 816 Liters
    maximum flow rate: 1.7 L/min
    analytical method 1: Gravimetric
    method reference: 11, 12
    sampling and analytical error: 0.10
    method classification: Fully Validated
    note: If the gross weight sample yields a concentration below the standard for the air contaminant, do not submit the sample to SLTC for analysis. If a gravimetric analysis is not sufficient, submit + the filter to SLTC for XRD analysis for quartz (OSHA Method ID-142). Submit bulk sample in separate package when quartz analysis is requested.
Wipe Sampling Method: No

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