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Chemical Sampling Information (CSI)
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General Description

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

Exposure Limits

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

Health Factors

Carcinogenic Classification:

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

Additional Information:

  • 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

Monitoring Methods used by OSHA

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.

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL for oil and 20 g for soil.

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