Method ID-143

Zinc Oxide in Workplace Atmospheres


This method is for the collection and analysis of zinc oxide in workplace air.  The sample is collected on a tared polyvinyl chloride (PVC) filter.  After collection the particulate on the filter is suspended in tetrahydrofuran (THF), deposited onto a silver membrane filter, and analyzed by X-ray diffraction (XRF).


(OSHA)

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Method Data

Hold Times, Preservatives, Preps, Collection, Analytical & Documentation
Holding Time:   None specified in the method.
Preservatives:   None specified in the method.
Required Preps:   37mm PVC filter with a 5 micron pore size
Collection Method:   The method recommends a 2 L/min. flow rate with a 30L (STEL) or 960L (TWA) sample collection volume.
Analytical Methodology:   XRF
Documentation:   ID-143

Analyte List*

Analyte Formula CAS Number Detection Limit
Zinc oxide
ZnO
1314-13-2
50
 µg

* 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.