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Chemical Sampling Information (CSI)
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General Description

Synonyms: Refrigerant 11; Monofluorotrichloromethane; Freon 11; Trichlorofluoromethane; Trichloromonofluoromethane; F-11

OSHA IMIS Code Number: 1285

Chemical Abstracts Service (CAS) Registry Number: 75-69-4

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: PB6125000; 48192

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1078 12

Chemical Description and Physical Properties:

colorless liquid or gas with a chlorinated solvent odor which is detectable at >20% by volume
molecular weight: 137
vapor pressure: 690 mm
boiling point: 75°F
melting point: -168°F

Incompatibilities: Chemically active metals: sodium, potassium, calcium, powdered aluminum, zinc, magnesium

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: 1000 ppm, 5600 mg/m3

Construction Industry: 1000 ppm, 5600 mg/m3 TWA

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1000 ppm, 5620 mg/m3 Ceiling; Appendix A4 (Not Classifiable as a Human Carcinogen) (TLV listed under Trichlorofluoromethane)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 1000 ppm Ceiling

Health Factors

Potential Symptoms: Incoordination; tremors; dermatitis; frostbite; cardiac arrhythmias, cardiac arrest

Health Effects: CNS effects (HE7); Acute Cardiovascular effects (HE4)

Affected Organs: CVS, skin

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (400/200 mg sections, 20/40 mesh)
    analytical solvent: Carbon Disulfide
    minimum time: 15 Minutes
    maximum flow rate: 0.05 L/min (TWA or Ceiling)
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 1006)
    sampling analytical error: 0.12
    method classification: Fully Validated

Secondary Laboratory Sampling/Analytical Method (SAM2):

  • device: Detector Tube
    company: MSA
    part #: 88536
    range: 250-2000 ppm, Pyrolyzer required
    class: Mfg

  • device: Detector Tube
    company: MSA
    part #: 92030
    range: 250-2000 ppm, Pyrolyzer required
    class: Mfg

  • device: Instrumentation
    company: Infrared Spectrophotometer
    part #: MIRAN 1A & 1B
    range: 1.4 ppm @ 11.0 um
    class: Mfg

  • device: Instrumentation
    company: Infrared SpectrophotometerOrganic Vapor Analyzer
    part #: MIRAN 103
    range: 0-100 ppm @ 10.8 um
    class: Mfg

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

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