<< Back to Chemical Sampling Information

Chemical Sampling Information (CSI)
Search (use word(s)/phrase)
Table of Contents
By Name
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

By CAS Number
Quick Links
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

Laboratory Sampling/Analytical Method:

  • sampling media: Mixed Cellulose Ester Filter (MCEF) 0.8 microns
    analytical solvent: Isooctane
    maximum volume: 200 Liters
    maximum flow rate: 1.5 L/min
    current analytical method: Gas Chromatography; GC/ECD
    method reference: 1 (OSHA Modified NIOSH 5025)
    sampling 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.

** All Trademarks are the property of their respective owners.