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Chemical Sampling Information (CSI)
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General Description

Synonyms: Styrene oxide; Phenethylene oxide; Styrene epoxide

OSHA IMIS Code Number: E230

Chemical Abstracts Service (CAS) Registry Number: 96-09-3

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: CZ9625000; 13905

Health Factors

Carcinogenic Classification:

International Agency for Research on Cancer (IARC): Group 2A, probably carcinogenic to humans (Styrene Oxide)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: Tenax GC Tube (30/15 mg sections, 35/60 mesh)
    analytical solvent: Ethyl Acetate
    maximum volume: 13.0 Liters
    maximum flow rate: 0.2 L/min
    current analytical method: Gas Chromatography; GC/FID
    method reference: 1 (NIOSH 303)
    method classification: Partially Validated

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