Phosphoric Acid in Workplace Atmospheres

For this method, adsorbent tube samples are collected by drawing workplace air through either coconut shell charcoal or Anasorb 747 tubes with personal sampling pumps. Diffusive samples are collected by exposing either 3M 3520 Organic Vapor Monitors (OVMs) or SKC 575-002 Passive Samplers to workplace air. Samples are desorbed with 60/40 (v/v) N,N-dimethylformamide/carbon disulfide (DMF/CS2) and analyzed by gas chromatography using a flame ionization detector.

Analysis Type (Application Method): IEC

Link to OSHA ID 111 Method

Compatible Filters:

37 mm diameter polystyrene 2 or 3 piece cassette filter holders. MCE filters with 0.8 μm pore size and a 37 mm diameter, supported by cellulose backup pads. Forceps to handle filter membrane.


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