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Chemical Sampling Information (CSI)
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General Description

Synonyms: Bi2Te3

OSHA IMIS Code Number: B110

Chemical Abstracts Service (CAS) Registry Number: 1304-82-1

Chemical Description and Physical Properties:

    solid
Exposure Limits

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 TWA

Health Factors

Health Effects: Accumulation in lungs (HE10)

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
    minimum volume: 408 Liters
    maximum flow rate: 1.7 L/min
    current analytical method: Gravimetric Analysis
    method reference: 11, 12
    sampling and analytical error: 0.10
    method classification: Fully Validated
    note: Field method. If the gross weight of the sample yields a concentration below the standard for the air contaminate, do not submitted sample to SLTC for analysis. If the filter is not overloaded, samples may be collected up to an 8-hour period.

  • alternate analytical method: Atomic Absorption Spectroscopy; AAS
    method reference: 2 (OSHA ID-121)
    method classification: Not Validated
    note: Submit as a separate sample. An elemental analysis for Tellurium or Bismuth is performed and reported as the compound.
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