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Chemical Sampling Information (CSI)
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General Description

Synonyms: 1-Naphthylamine

OSHA IMIS Code Number: 1815

Chemical Abstracts Service (CAS) Registry Number: 134-32-7

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: QM1400000; 51351

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2077 Keep Away From Food

Chemical Description and Physical Properties:

colorless crystals with an unpleasant odor, which darken in air to a purplish-reddish color
molecular weight: 143
vapor pressure: 1 mm at 104°C
boiling point: 572°F
melting point: 122°F

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: Cancer-Suspect Agent 29 CFR 1910.1004

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Potential Carcinogen, Use 29 CFR 1910.1004

Health Factors

Carcinogenic Classification:

International Agency for Research on Cancer (IARC): Group 3, not classifiable as to its carcinogenicity to humans (1-Naphthylamine)

Potential Symptoms: Dermatitis; hemorrhagic cystitis; dyspnea; ataxia; methemoglobinemia; hematuria; dysuria; (carcinogenic)

Health Effects: Cancer-Bladder (Suspect) (HE1)

Affected Organs: Bladder, skin

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 93)
    sampling analytical error: 0.09
    method classification: Fully Validated
    note: Within ten hours after sampling, transfer filter to glass vial containing 2 mL deionized water. Filters may be obtained by OSHA personnel from the Salt Lake Technical Center.

Conditions: NH2 column; 85% Isooctane 15% Isopropanol; 1 mL/min; Fluorescence - ex 237, em 370; Retention time, 8 min

Wipe Sampling Method:

  • sampling media: Sulfuric acid coated glass fiber filters, within 10 hours place filter in glass vial containing 2 mL deionized water

Bulk Method:

  • Limit the amount of bulk submitted to one gram or one mL.

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