CHLORODIPHENYL, 42% CHLORINE (PCB)†

Chemical Identification

CAS # 53469-21-9
Formula

C₆H₄ClC₆H₃Cl₂ (approx)

Synonyms

Aroclor1242; PCB; polychlorinated biphenyl

Physical Properties

Physical description Colorless to light-colored, viscous liquid with a mild, hydrocarbon odor.
Boiling point 617-691°F Molecular weight 258 (approx)
Freezing point/melting point -2°F Vapor pressure 0.001 mmHg
Flash point >286°F Vapor density
Specific gravity 1.3-1.8 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating 2 NFPA fire rating 1
NFPA reactivity rating 0 NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs

Monitoring Methods Used by OSHA

Analyte code (IMIS no.) 0630
Sampling group
Sampler/Sampling media OSHA versatile sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg) with GFF enclosed [SKC 226-30-16]
Sampling time*

60 min

Sampling volume (TWA)*

60 L

Sampling flow rate (TWA)*

1 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments GC-ECD
Method reference OSHA PV2089 (partially validated)
Notes

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.

Special requirements

* All sampling instructions above are recommended guidelines for OSHA Compliance Safety and Health Officers (CSHOs), please see the corresponding OSHA method reference for complete details.

Bulk/Wipe Method

Wipe Sampler/Sampling media
Bulk Method

Limit the amount of bulk submitted to 1 g or 1 mL.

On-Site Screening Techniques

Device
Model/Type
Sampling information
(see manufacturer instructions)

Exposure Limits

OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
NIOSH REL
Up to 10-hour TWA
(ST) STEL
(C) Ceiling
ACGIH TLV©
8-hour TWA
(ST) STEL
(C) Ceiling
CAL/OSHA PEL
8-hour TWA
(ST) STEL
(C) Ceiling
Peak
PEL-TWA

1 mg/m³

REL-TWA

0.001 mg/m³

TLV-TWA PEL-TWA
PEL-STEL REL-STEL TLV-STEL PEL-STEL
PEL-C REL-C TLV-C PEL-C
Skin notation

Y

Skin notation

N

Skin notation

Y

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1.

Notes:

CARCINOGEN (Ca): REDUCE EXPOSURE TO LOWEST FEASIBLE CONCENTRATION. See Appendix A, NIOSH Potential Occupational Carcinogens.

Notes:

Visit the ACGIH TLV site for specific data

Notes:
Health factors:  See NIH-NLM PubChem. IDLH

5 mg/m³

Carcinogenic classifications: NIOSH-Ca, TLV-A3 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:

Additional Resources and Literature References

Last Updated Date : 05/01/2024