OSHA IMIS Code Number: 0866
Chemical Abstracts Service (CAS) Registry Number: 102-81-8
NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KK3850000; 34373
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN2873; 153 Keep Away From Food
Chemical Description and Physical Properties:
American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.5 ppm, 3.5 mg/m3 TWA (Skin)
National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 ppm TWA (Skin)
Health Effects: Irritation-Eye, Nose, Throat, Skin---Moderate (HE15) Cumulative liver damage (HE3)
Primary Laboratory Sampling/Analytical Method (SLC1):
sampling media: Silica Gel Tube (300/150 mg sections, 45/60 mesh)
analytical solvent: 4:1 Methanol:Water
maximum volume: 24 Liters
maximum flow rate: 0.2 L/min
current analytical method: Gas Chromatography; GC/FID
method reference: 1, 2 (OSHA modified NIOSH 2007 [28 KB PDF, 5 pages])
method classification: Fully Validated
note: Immediately after sampling, transfer each section of the tube to separate vials containing 2 mL desorbing solution [0.12 M HCl in 4:1 methanol:water]. OSHA personnel may obtain vials containing solution from SLTC.
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