Method 7602

Silica, Crystalline by IR

Method 7602 is used for the determination of quartz. Samples are collected using a cyclone and filter and analyzed using infrared absorption spectrophotometry. NOTE: This is P&CAM 110. It is similar to Method 7603, except for sample preparation (KBr pellet vs. redeposition).

(NIOSH Issue 2: 15 August 1994)


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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   N/A
Preservatives:   N/A
Required Preps:   37 mm, 0.8 µm MCE, 5.0 µm PVC filter
Collection Method:   Cyclone and filter, 400-800 L @ variable flow rates
Analytical Methodology:   Infrared Absorption Spectrophotometry
Documentation:   7602

Analyte List*

Analyte Formula CAS Number Detection Limit
Silica, crystalline

* The analytes and detection limits listed for each method represent the typical detection limits and analytes reported for that particular method. Keep in mind that analyte lists may vary from laboratory to laboratory. Detection limits may also vary from lab to lab and are dependent upon the sample size, matrix, and any interferences that may be present in the sample.