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Chemical Sampling Information (CSI)
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General Description

Synonyms: m-Aminotoluene; m-Methylaniline; 3-Methylbenzenamine; m-Tolylamine

OSHA IMIS Code Number: T339

Chemical Abstracts Service (CAS) Registry Number: 108-44-1

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DD1225000; 14667

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN 1708 Poison

NIOSH Pocket Guide to Chemical Hazards, o-Tolidine: Chemical description, physical properties, potentially hazardous incompatibilities, and more

Chemical Description and Physical Properties:
molecular weight: 107.17
boiling point: 203-204°C
molecular formula: C7H9N
Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm, 8.8 mg/m3 TWA (Skin); Appendix A4 (Not Classifiable as a Human Carcinogen)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • sampling media: Coated Glass Fiber Filters (37 mm) in 3 piece cassette. Coating is Sulfuric Acid.
    maximum volume: 100 Liters   
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/ECD
    method reference: 2 (OSHA Method 73)
    sampling analytical error: 0.09
    method classification: Fully Validated
    note: Filters may be obtained by OSHA personnel from SLTC.
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Page last updated: 01/19/1999