NIOSH 7603 (Issue 3)

QUARTZ in coal mine dust, by IR (redeposition)

The method was specifically developed for respirable coal mine dust samples. This test method uses infrared absorption spectrophotometry (IR) to monitor quartz (free crystalline silica; silicon dioxide). Quartz can also be determined by Methods 7500 (XRD) and 7602 (IR). Hydrochloric acid is corrosive and should be handled in a fume hood.

Analysis Type (Application Method): IR

Link to NIOSH 7603 (Issue 3) Method

Compatible Filters:

37 mm 5.0 μm PVC supported with back up pad in a two-piece, 37 mm cassette filter holder (preferably, conductive) held together by tape or cellulose shrink band. Forceps to handle filter membrane.

Materials

     
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