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Boron Tribromide

General Description

  • OSHA IMIS Code Number: 0381
  • Chemical Abstracts Service (CAS) Registry Number: 10294-33-4
  • Chemical Description and Physical Properties:
    • liquid

Exposure Limits

  • OSHA Permissible Exposure Limit (PEL):
  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1 ppm, 10 mg/m3 Ceiling
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1 ppm ceiling

Health Factors

  • Health Effects: Irritation-Eye, Nose, Throat, Lungs---Marked (HE14) Acute Irritation-Eyes, Nose, Throat, Lungs (HE4)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Midget Fritted Glass Bubbler (MFGB) containing 10 mL 0.003 M NaHC03/0.0024 M Na2C03
  • maximum volume: 5 Liters
  • maximum flow rate: 1.0 L/min (Ceiling)
  • current analytical method: Ion Chromatography; IC
  • method reference: 2 (OSHA In-House File)
  • method classification: Not Validated
  • note: Sample hydrolyzed to Bromide. Analysis for Br- follows OSHA method ID-108. Submit as a separate sample.

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