Workplace air — Determination of metals and metalloids in airborne particulate matter by inductively coupled plasma atomic emission spectrometry — Part 2: Sample preparation

This document specifies a number of suitable methods for preparing test solutions from samples of airborne particulate matter collected using the method specified in ISO 15202 1, for subsequent determination of metals and metalloids by ICP AES using the method specified in ISO 15202 3. It contains information about the applicability of the methods with respect to the measurement of metals and metalloids for which limit values have been set. The methods can also be used in the measurement of some metals and metalloids for which limit values have not been set but no information about its applicability is provided in this case.

NOTE The sample preparation methods described in this document are generally suitable for use with analytical techniques other than ICP AES, e.g. atomic absorption spectrometry (AAS) by ISO 8518[5] and ISO 11174[10] and inductively coupled plasma mass spectrometry (ICP MS) by ISO 30011[11].

The method specified in Annex B is applicable when making measurements for comparison with limit values for soluble metal or metalloid compounds.

One or more of the sample dissolution methods specified in Annexes C through H are applicable when making measurements for com