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General Description

  • OSHA IMIS Code Number: A257
  • Chemical Abstracts Service (CAS) Registry Number: 37293-45-1

Monitoring Methods used by OSHA

Primary Laboratory Sampling/Analytical Method (SLC1):
  • Glass Fiber Filter (37 mm)
  • maximum volume: 200 Liters
  • maximum flow rate: 1.0 L/min
  • current analytical method: High Performance Liquid Chromatography; HPLC/U
  • method reference: 2 (OSHA In-house File)
  • method classification: Not Validated
Wipe Sampling Method:
  • Glass Fiber Filter (HPLC/UV)
Bulk Method:
  • For any dye analysis, a bulk sample of the dye must be sent to the Salt Lake Technical Center. Limit the amount of bulk submitted to one gram or approx. one mL.
Conditions:

Mobile phase extraction; C18 column; 73% methanol 27% water, PIC A 1 mL/min; UV det: 254, 280; 3 ug/sample; ext. eff. 96%

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