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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 1875

Chemical Abstracts Service (CAS) Registry Number: 92-93-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: DV5600000; 20760

Chemical Description and Physical Properties:

white to yellow needle-like crystals

Incompatibilities: Strong reducers

Exposure Limits

OSHA Permissible Exposure Limit (PEL):

General Industry: Cancer-Suspect Agent 29 CFR 1910.1003

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

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): Potential Carcinogen, Use 29 CFR 1910.1003

Health Factors

Carcinogenic Classification:

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

Potential Symptoms: Headaches, lethargy, dizziness; dyspnea; ataxia; weakness; methemoglobinemia; urinary burning, acute hemorrhagic cystitis; (carcinogenic)

Health Effects: Cancer-Bladder (HE1)

Affected Organs: Bladder, blood

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
    analytical solvent: Ethyl Acetate
    maximum volume: 240 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: High Pressure Liquid Chromatography; HPLC/UV
    method reference: 2 (OSHA PV2082)
    method classification: Partially Validated
    note: OSHA personnel may obtain sampling tubes from the Salt Lake Technical Center.

  • sampling media: Glass Fiber Filter in Swinnex (TM) cassette in series with Silica Gel Tube (100/50 mg sections, 20/45 mesh)
    analytical solvent: Isopropanol
    maximum volume: 48 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 273)
    method classification: Not Validated

Wipe Sampling Method:

  • sampling media: Glass Fiber Filter

Bulk Method:

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

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