Synonyms: Arochlor 1242; Aroclor 1242; Polychlorinated Biphenyl; PCB
OSHA IMIS Code Number: 0630
Chemical Abstracts Service (CAS) Registry Number: 53469-21-9; 27323-18-8
NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TQ1356000; 64474
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2315 Class 9 ; 2315 171
NIOSH Pocket Guide to Chemical Hazards, Chlorodiphenyl (42% Cl): chemical description, physical properties, potentially hazardous incompatibilities, and more
Chemical Description and Physical Properties:
colorless to dark brown liquid with a mild hydrocarbon odor
molecular weight: 258
boiling point: 617 to 691°F
vapor pressure: 0.001 mm
melting point: -2°F
Incompatibilities: Strong oxidizers
OSHA Permissible Exposure Limit (PEL):
General Industry: 1.0 mg/m3 (Skin)
Construction Industry: 1 mg/m3 TWA (Skin)
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 1 mg/m3 TWA (Skin)
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.001 mg/m3 TWA; Potential Carcinogen
International Agency for Research on Cancer (IARC): Group 2A, probably carcinogenic to humans (Polychlorinated Biphenyls)
National Toxicology Program (NTP): Suspect human carcinogen (Polychlorinated Biphenyl) [148 KB PDF, 4 pages]
Potential Symptoms: Irritated eyes; chloracne; liver damage; (carcinogenic)
Health Effects: Chloracne/Cumulative lung damage (HE3)
Affected Organs: Skin, eyes, liver
Occupational Health Guidelines for Chemical Hazards. US Department of Health and Human Services (DHHS), National Institute for Occupational Safety and Health (NIOSH) Publication No. 81-123, (1981, January). Provides a table of contents of guidelines for many hazardous chemicals. The files provide technical chemical information, including chemical and physical properties, health effects, exposure limits, and recommendations for medical monitoring, personal protective equipment (PPE), and control procedures.
Date Last Revised: 01/14/2002
Primary Laboratory Sampling/Analytical Method (SLC1):
- sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 Tube (270/140 mg sections, 20/60) with Glass Fiber Filter enclosed
maximum volume: 60 Liters
maximum flow rate: 1.0 L/min
current analytical method: Gas Chromatography; GC/ECD
method reference: 2 (OSHA PV2089)
method classification: Partially Validated
note: Collect a sample of the bulk substance and send to the lab in a separate mailing container at the time the air samples are submitted. Indicate on the sample sheet that a bulk sample has been submitted.
** All Trademarks are the property of their respective owners.
- Limit the amount of bulk submitted to one gram or one mL for oil and 20 g for soil.
Accessibility Assistance: Contact the OSHA Directorate of Technical Support and Emergency Management at (202) 693-2300 for assistance accessing PDF materials.