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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 1025

Chemical Abstracts Service (CAS) Registry Number: 74-84-0

Chemical Description and Physical Properties:

gas

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

Construction Industry: Simple Asphyxiant (Note 3)

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): (Simple Asphyxiant)

Health Factors

Health Effects: Explosive (HE18) Simple Asphyxiation (HE17) If Oxygen level is 18% by volume

Monitoring Methods used by OSHA

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • part #: MIRAN 1A & 1B Min. Det. Con.
    range: 11.6 ppm at 12.1 um

  • part #: MIRAN 103
    range: 0-25 ppm at 3.4 um

  • device: Organic Vapor Analyzer
    company: PID
    part #: Photoionization Detector

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