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Chemical Sampling Information (CSI)
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General Description

Synonyms: Phosphorodithioic acid S-[[1.1-dimethylethyl)thio]methyl]-o,o-diethyl ester; Counter 15G

OSHA IMIS Code Number: 2333

Chemical Abstracts Service (CAS) Registry Number: 13071-79-9

NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: TD7200000; 59082

Chemical Description and Physical Properties:

clear liquid
molecular weight: 288.41
boiling point: 69°C at 0.01 mm
melting point: -29.2°C

Exposure Limits

American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 0.01 mg/m3 TWA (Inhalable Fraction) (Vapor and Aerosol) (Skin); Appendix A4 (Not Classifiable as a Human Carcinogen); BEI

Health Factors

Health Effects: LD50 (oral,rat) 1.6-9.0 mg/kg

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
    note: OSHA personnel may obtain sampling tubes from the Salt Lake Technical Center.
Conditions: Toluene extraction; column (30 m x 0.53 mm i.d.) DB-210 megabore 1 um thick film; Oven 150-200 deg C at 8 deg/min; Inj T 200 deg. C; Det T 300 deg. C; Retention time 5.5 min; DL 1.2 ug/sample; + extraction eff 97%

Wipe Sampling Method:
  • sampling media: Glass Fiber Filter
Bulk Method:
  • Limit the amount of bulk submitted to one gram or one mL.
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