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Chemical Sampling Information (CSI)
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General Description

Synonyms: Solvent naphtha (coal)

OSHA IMIS Code Number: 0710

Chemical Abstracts Service (CAS) Registry Number: 8030-30-6

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DE3030000

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN 2553 Flammable Liquid 128 (petroleum distillates, n.o.s.)

NIOSH Pocket Guide to Chemical Hazards, Naphtha (Coal Tar): Chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
reddish-brown, mobile liquid with an aromatic odor
molecular weight: approx. 110
boiling point: 230 to 374°F
vapor pressure: <5 mm
Potentially Hazardous Incompatibilities: strong oxidizers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):
General Industry: 100 ppm, 400 mg/m3

Construction Industry: 100 ppm, 400 mg/m3 TWA
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 100 ppm TWA

Health Factors

Carcinogenic Classification:
International Agency for Research on Cancer (IARC): Group 1, carcinogenic to humans
Potential Symptom(s): Lightheadedness, drowsiness; eye, nose, skin irritation; dermatitis

Health Effects: Irritation-Eye, Nose, Throat, Skin---Mild (HE16) Narcosis (HE8)

Affected Organs: Respiratory system, eyes, skin

NIOSH/OSHA/DOE Health Guideline: Naphtha (Coal Tar)

Monitoring Methods used by OSHA

Primary Sampling/Anaylytical Method (SLC1):
  • sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh)
    analytical solvent: Carbon Disulfide
    alternate solvent: (99:1) Carbon Disulfide/Dimethylformamide
    maximum volume: 3 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 OSHA 48
    method classification: Fully 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.
Secondary Sampling/Analytical Method (SAM2):
  • device: Instrumentation
    company:     PID
    part #: Photoionization Detector
    method classification: Mfg
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Page last updated: 05/24/2011