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Chemical Sampling Information (CSI)
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General Description

OSHA IMIS Code Number: I118

Chemical Abstracts Service (CAS) Registry Number: 109-59-1

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: KL5075000; 34525

Chemical Description and Physical Properties:

molecular weight: 104.17
molecular formula: C5H12O2

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 25 ppm, 106 mg/m3 TWA

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 25 ppm TWA

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Charcoal Tube (100/50 mg sections, 20/40 mesh)
    analytical solvent: (95:5) Methylene Chloride/Methanol
    maximum volume: 10 Liters
    maximum flow rate: 0.1 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 2 (OSHA In-House File)
    method classification: Not Validated

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