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General Description

  • Synonyms: Cobalt metal dust; Cobalt metal fume
  • OSHA IMIS Code Number: 0350
  • Chemical Abstracts Service (CAS) Registry Number: 56-55-3
  • NIOSH Registry of Toxic Effects of Chemical Substances (RTECS) Identification Number: CV9275000

Exposure Limits

Health Factors

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Pre-cleaned Glass Fiber Filter (37 mm)
  • maximum volume: 960 Liters
  • maximum flow rate: 2.0 L/min
  • current analytical method: High Performance Liquid Chromatography; HPLC/UV/FLU
  • method reference: 2 (OSHA In-House File)
  • method classification: Partially Validated
  • note: OSHA personnel can obtain pre-cleaned filters, vials, and Teflon-lined caps from SLTC. Immediately after sampling, transfer filter to glass scintillation vial and seal with Teflon-lined cap. Protect from light.
Bulk Method:
  • Limit the amount of bulk submitted to one gram or one mL

Column: C18 mobile phase: 85:15 Acetonitrile: Water detector wavelength: 254nm flouresence detection limit: excitation: 254nm emissions: 370nm

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