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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: H146

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: MN9275000; 39449

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN1208 Flammable Liquid

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 500 ppm, 1760 mg/m3 TWA; 1000 ppm, 3500 mg/m3 STEL

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100/50 mg sections; 20/40 mesh)
    analytical solvent: Carbon Disulfide
    alternate solvent: 99:1 Carbon Disulfide:Dimethylformamide
    maximum volume: 5 Liters
    maximum flow rate: 0.2 L/min (TWA)
    maximum volume: 3 Liters
    maximum flow rate: 0.2 L/min (STEL)
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (OSHA Modified NIOSH 1500 [128 KB PDF, 8 pages])
    method classification: Partially Validated

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