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Bismuth Telluride, Se Doped

General Description

  • OSHA IMIS Code Number: 0371
  • Chemical Abstracts Service (CAS) Registry Number: 1304-82-1
  • Chemical Description and Physical Properties:
    • solid

Exposure Limits

  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 TWA

Health Factors

  • Health Effects: Cumulative lung damage (HE10)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Tared Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns
  • maximum volume: 960 Liters
  • minimum volume: 480 Liters
  • maximum flow rate: 2.0 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 contaminant, do not submit the sample to Salt Lake Technical Center (SLTC) for analysis.
  • 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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