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Chemical Sampling Information (CSI)
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General Description

Synonyms: 3,4-Dihydro-6-Methoxy-1(2H)-Naphthalenone; Diesel Exhaust Component

OSHA IMIS Code Number: M209

Chemical Abstracts Service (CAS) Registry Number: 1078-19-9

Chemical Description and Physical Properties:

molecular weight: 176.21
boiling point: 171°C
melting point: 80°C

Health Factors

Health Effects: Diesel exhaust is a potential carcinogen. U.S. Department of Health and Human Services. NIOSH Current Intelligence Bulletin, No. 50, August 1988.

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: XAD-2 tube (80/40 mg sections, 15/50 mesh)
    analytical solvent: (90:10) Methylene Chloride/Methanol
    maximum volume: 10 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: High Performance Liquid Chromatography; HPLC/UV
    method reference: 2 (OSHA In-House file)
    method classification: Partially Validated

Conditions: Column: C18; Mobile Phase: 76:24:0.1 Water:Acetonitrile:H3PO4; Detector Wavelength: 254 nm

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