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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

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.
Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical 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 Laboratory Sampling/Analytical Method (SAM2):

  • device: Instrumentation
    company:     PID
    part #: Photoionization Detector
    class: Mfg
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