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Chemical Sampling Information (CSI)
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General Description

Synonyms: 1,5-Naphthylene Ester Isocyanic Acid

OSHA IMIS Code Number: N119

Chemical Abstracts Service (CAS) Registry Number: 3173-72-6

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: NQ9850000

Chemical Description and Physical Properties:

molecular weight: 210.20
molecular formula: C12H6N2O2

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Glass Fiber Filter (37 mm) coated with 1.0 mg 1-(2-Pyridyl)piperazine
    analytical solvent: 90/10 Acetonitrile/Dimethylsulfoxide
    maximum volume: 60 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV/FLU
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated

Conditions: Column: Spherisorb (hexyl) Mobile Phase: 58/42 H2O/Acetonitrile 0.05 M Ammonium Acetate adjusted to pH 5.9 @ H3PO4; Detector: Fluorescence Ex-240nm Em-370nm; Detector: +UV-254nm.

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