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Butene

General Description

  • OSHA IMIS Code Number: B595
  • Chemical Abstracts Service (CAS) Registry Number: 25167-67-3
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: EM2893000; 21058
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: UN1012 115 Flammable Gas
  • Chemical Description and Physical Properties:
    • Gas at room temperature

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Two Charcoal Tubes (100/50 mg sections, 20/40 mesh) in series
  • maximum volume: 1 Liter
  • maximum flow rate: 0.05 L/min
  • current analytical method: Gas Chromatography; GC/FID
  • analytical solvent: Carbon Disulfide
  • method reference: 2 (OSHA In-house file)
  • method classification: Partially Validated

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