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Chemical Sampling Information (CSI)
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General Description

Synonyms: NIPA

OSHA IMIS Code Number: A636

Chemical Abstracts Service (CAS) Registry Number: 768-52-5

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: BY4200000; 8331

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

Chemical Description and Physical Properties:

molecular weight: 135.23
molecular formula: C9H13N
boiling point: 202°C

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 2 ppm, 11 mg/m3 -TWA (Skin)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 2 ppm TWA(skin)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Coated Glass Fiber Filters (37 mm) in 3 piece cassette. Coating is Sulfuric Acid.
    maximum volume: 100 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV
    method reference: 2 (OSHA 78)
    sampling analytical error: 0.10
    method classification: Fully Validated
    note: Filters may be obtained by OSHA personnel from the Salt Lake Technical Center.

Conditions: Column: C18 Mobile Phase: 75:25 Methanol:Water with 1.7 mL/L . di-n-butylamine and adjusted to pH=7 . with H3PO4 Detector Wavelength: 245 nm Detection Limit: 1.7 ng/inj

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