COAL TAR PITCH VOLATILES (BENZENE-SOLUBLE FRACTION), (PYRENE, PHENANTHRENE, ACRIDINE, CHRYSENE, ANTHRACENE AND BENZO(A)PYRENE)‡

Chemical Identification
Chemical Identification
CAS # 65996-93-2
Formula

Mixture

Synonyms

coal tar pitch high temperature; oil pitch; pitch; CTPHT; coal tar distillates; other synonyms vary depending upon the specific compound (e.g., pyrene, phenanthrene, acridine, chrysene, anthracene and benzo(a)pyrene).

Physical Properties
Physical Properties
Physical description Black viscous liquid with an odor of aromatic solvent.
Boiling point >150°F Molecular weight
Freezing point/melting point Vapor pressure depends upon the specific compound
Flash point >842°F Vapor density
Specific gravity >1.1 Ionization potential
Lower explosive limit (LEL) Upper explosive limit (UEL)
NFPA health rating NFPA fire rating
NFPA reactivity rating NFPA special instruction
Vapor hazard ratio (VHR)
Historical exceedance percentage
Target organs
Monitoring Methods Used by OSHA
Monitoring Methods Used by OSHA
Analyte code (IMIS no.) 0700
Sampling group
Sampler/Sampling media Coal Tar Pitch Volatiles (CTPV) Sampling Filters and Cassette [SLTC109]
Sampling time*

480 min

Sampling volume (TWA)*

960 L

Sampling flow rate (TWA)*

2 L/min

Sampling volume (STEL/Peak/C)*
Sampling flow rate (STEL/Peak/C)*
Analytical method instruments HPLC
Method reference OSHA 58 (fully validated)
Notes

After sampling, filter must be transferred to a vial with a teflon-lined cap. Sample must be protected from direct sunlight. If chemicals are present that may be soluble in benzene, such as sulfur, please note them on the 91A form, because additional analyses may be possible to determine the extent of interference.

Special requirements

These media are prepared by SLTC as needed and are not available for immediate shipment. Please allow time for SLTC to prepare these media prior to sampling.

* 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.

Wipe Method
Wipe Method
Sampler/Sampling media
Bulk Method
Bulk Method
On-Site Screening Techniques
On-Site Screening Techniques
Device
Model/Type
Sampling information
(see manufacturer instructions)
Exposure Limits
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

0.2 mg/m³ (benzene-soluble fraction)

REL-TWA

0.1 mg/m³ (cyclohexane-extractable fraction)

TLV-TWA

0.2 mg/m³ (benzene-soluble aerosol) [1984]

PEL-TWA

0.2 mg/m³

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

N

Skin notation

N

Skin notation

N

Skin notation

N

Notes:

See 29 CFR 1910.1000 Table Z-1 and 1910.1002 - Coal tar pitch volatiles; interpretation of term.

Notes:

CARCINOGEN (Ca). See Appendix A, NIOSH Potential Occupational Carcinogens and Appendix C, Supplementary Exposure Limits.

Notes:

BEI®

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

80 mg/m³

Carcinogenic classifications: IARC-1, NIOSH-Ca, NTP-K, TLV-A1 Notes:

Ca

AIHA emergency response planning guidelines - ERPG-1/ERPG-2/ERPG-3:
Additional Resources and Literature References
Additional Resources and Literature References

NOAA: CAMEO Chemicals - Not Listed

NIOSH: Pocket Guide to Chemical Hazards - Coal tar pitch volatiles

Literature References

  • ACGIH: Documentation of the Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) - Coal Tar Pitch Volatiles. See annual publication for most recent information.
  • Bingham, E., Cohrssen, B., Powell, C.H.: Patty's Toxicology Volumes 1-9 5th ed. John Wiley & Sons. New York, N.Y. p. 1:773, 2001.
  • California Occupational Safety & Health Standards Board: Initial and Final Statement of Reasons August 3, 2010.
  • Jongeneelen, F.: Biological exposure limit for occupational exposure to coal tar pitch volatiles at cokeovens. Int Arch Occup Environ Health. 63(8):511-516, 1992.
  • NIOSH: Occupational Health Guideline for Coal Tar Pitch Volatiles. 1978
  • NIOSH/CEC/IPCS: International Chemical Safety Cards - Coal Tar Pitch. March 2002.

Last Updated Date : 01/28/2021