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Chemical Sampling Information (CSI)
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General Description

Synonyms: N-Phenyl-beta-Naphthylamine

OSHA IMIS Code Number: N606

Chemical Abstracts Service (CAS) Registry Number: 135-88-6

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): A2 (Suspected Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Potential carcinogen

Health Factors

Carcinogenic Classification:

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

Health Effects: Metabolizes to beta-Napthylamine in humans and animals

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Two coated, 25mm, extra thick glass fiber filters enclosed in a 3 piece opaque cassette. Coating is 10 mg vitamin C.
    analytical solvent: Methanol
    maximum volume: 240 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/FLU
    method reference: 2 (OSHA 96)
    sampling and analytical error: 0.09
    method classification: Fully Validated

Conditions: Column: Radial-Pak C18 Mobile Phase: 85/15 Methanol Water Detector: 300nm Excitation, 370nm Emission Detection Limit: 32.5 pg/injection

Wipe Sampling Method:

  • sampling media: Glass Fiber Filter

Bulk Method:

  • current analytical method: High performance liquid chromatography; HPLC/UV/Fluorescence
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated
    note: Limit the amount of bulk submitted to one gram or one mL.
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