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Chemical Sampling Information (CSI)
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General Description

Synonyms: 4-(Methylthio)-m-Tolyl Ethyl Ester Isopropyl-Phosphoramidic Acid; Bay 68138; Bay SRA 3886; Nemacur

OSHA IMIS Code Number: F126

Chemical Abstracts Service (CAS) Registry Number: 22224-92-6

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TB3675000; 58600

Department of Transportation Regulation Number (49 CFR 172.101) and Guide: UN3017 Poison, Flammable Liquid

Chemical Description and Physical Properties:

molecular weight: 303.39
molecular formula: C12H19O2PS3

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.1 mg/m3 TWA (Skin); Appendix A4 (Not Classifiable as a Human Carcinogen)

National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 0.1 mg/m3 TWA (Skin)

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):

  • sampling media: OSHA Versatile Sampler (OVS-2) - 13 mm XAD-2 tube (270/140 mg sections, 20/60 mesh) with Glass Fiber Filter enclosed
    analytical solvent: Toluene
    maximum volume: 480 Liters
    maximum flow rate: 1.0 L/min
    current analytical method: Gas Chromatography; GC/FPD
    method reference: 2 (OSHA In-House File)
    method classification: Partially Validated

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