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Ammonium Sulfamate (Total Dust)

General Description

  • Synonyms: Ammate herbicide; Ammate; Ammonium Sulfamate prior to 9/1/89
  • OSHA IMIS Code Number: 0185
  • Chemical Abstracts Service (CAS) Registry Number: 7773-06-0
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: WO6125000
  • Department of Transportation Regulation Number (49 CFR 172.101) and Emergency Response Guidebook: 9089 31
  • Chemical Description and Physical Properties:
    • colorless, odorless solid
    • molecular weight: 114
    • boiling point: 392°F
    • vapor pressure: approx. 0 mm
    • melting point: 268°F
  • Incompatibilities: Strong oxidizers, hot water

Exposure Limits

  • OSHA Permissible Exposure Limit (PEL):
    • General Industry: 15.0 mg/m3
    • Construction Industry: 15 mg/m3 TWA
  • American Conference of Governmental Industrial Hygienists (ACGIH) Threshold Limit Value (TLV): 10 mg/m3 TWA
  • National Institute for Occupational Safety and Health (NIOSH) Recommended Exposure Limit (REL): 10 mg/m3 TWA

Health Factors

  • Health Effects: Irritation-Eye, Nose, Throat, Skin---Mild (HE16) LD50 (oral, rat) 3900 mg/kg

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Tared Low Ash Polyvinyl Chloride (LAPVC) filter 5 microns
  • maximum volume: 960 Liters
  • maximum flow rate: 2.0 L/min
  • current analytical method: Gravimetric
  • method reference: 11, 12
  • sampling analytical error: 0.10
  • method classification: Fully Validated
  • note: Field method. If the filter is not overloaded, samples may be collected up to an 8-hour period. Submit as a separate sample only if the gross weight of the sample yields an air concentration greater than the PEL. When the analysis of a compound is requested an analysis is performed for total ammonia and reported as the compound. The analytical method does not distinguish between dust and fume.

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