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Chlorinated Diphenyl Oxide

General Description

  • Synonyms: Hexachlorodiphenyl oxide; Chlorinated Diphenyl Ether
  • OSHA IMIS Code Number: 0613
  • Chemical Abstracts Service (CAS) Registry Number: 55720-99-5
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KO4200000; 35014
  • Chemical Description and Physical Properties:
    • Waxy solid or liquid
    • molecular weight: 377
    • boiling point: 446 to 500 F
    • vapor pressure: <0.00006 mm
  • Incompatibilities: Strong oxidizers

Exposure Limits

  • OSHA Permissible Exposure Limit (PEL):
    • General Industry: 0.5 mg/m3 TWA
    • Construction Industry: 0.5 mg/m3 TWA
  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.5 mg/m3 TWA
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.5 mg/m3 TWA

Health Factors

  • Potential Symptoms: Acneform dermatitis; liver damage
  • Health Effects: Cumulative liver damage/Dermatitis (HE3)
  • Affected Organs: Skin, liver

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Mixed Cellulose Ester Filter (MCEF) 0.8 microns
  • maximum volume: 200 Liters
  • maximum flow rate: 1.5 L/min
  • current analytical method: Gas Chromatography; GC/ECD
  • analytical solvent: Isooctane
  • method reference: 1 (OSHA Modified NIOSH 5025)
  • sampling and analytical error: 0.12
  • method classification: Fully Validated
  • note: Remove filter and backup pad from cassette and place in scintillation vial within one hour after sampling.

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