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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: 0776

Chemical Abstracts Service (CAS) Registry Number: 299-86-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TB3850000; 58603

Chemical Description and Physical Properties:

solid
molecular weight: 292

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 5 mg/m3 TWA; Appendix A4 (Not Classifiable as a Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 5 mg/m3 TWA, 20 mg/m3 STEL

Health Factors

Health Effects: Cholinesterase inhibition (HE6)

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
    maximum volume: 120 Liters
    maximum flow rate:     1.0 L/min (TWA)
    current analytical method: Gas Chromatography; GC/FPD
    method reference: 2 (OSHA In-House file)
    method classification: Not Validated

Bulk Method:

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

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