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Chemical Sampling Information (CSI)
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General Description

Synonyms: Ethrane; 2-Chloro-1,1,2-Trifluoroethyldifluoromethyl Ether; Efrane; Alyrane

OSHA IMIS Code Number: 1038

Chemical Abstracts Service (CAS) Registry Number: 13838-16-9

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KN6800000; 34930

Chemical Description and Physical Properties:

molecular weight: 184.49
vapor pressure: 188.6 mm @ 22°C
molecular formula: C3H2OClF5
boiling point: 56.5°C

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 75 ppm, 566 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 ppm Ceiling (60 min)

Health Factors

Carcinogenic Classification:

International Agency for Research on Cancer (IARC): Anaesthetics, volatile - Group 3, not classifiable as to its carcinogenicity to humans

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Anasorb 747 Tube (140/70 mg sections)
    analytical solvent: Carbon Disulfide
    maximum volume: 12 Liters
    maximum flow rate: 0.05 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 (OSHA 103)
    sampling and analytical error: 0.13
    method classification: Fully Validated

    sampling media: Anasorb CMS Tube (150/75 mg sections)
    analytical solvent: Carbon Disulfide
    maximum volume: 12 Liters
    maximum flow rate: 0.05 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 (OSHA 103)
    sampling and analytical error: 0.14
    method classification: Fully Validated

    sampling media: Two Charcoal Tubes in series (100/50 mg sections, 20/40 mesh)
    analytical solvent: Carbon Disulfide
    maximum volume: 10 Liters
    maximum flow rate: 0.1 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 (OSHA 29)
    sampling and analytical error: 0.13
    method classification: Fully Validated

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B Min. Det. Con.
    range: 0.03 ppm at 8.9 um
    class: Mfg

    device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 103
    range: 0-10 ppm at 8.7 um
    class: Mfg

    device: Instrumentation
    company: Organic Vapor Analyzer
    part #: Organic Vapor Analyzer
    class: Mfg

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