ISO 8573-6 provides test methods to determine the content of the (gaseous) contaminants carbon monoxide, carbon dioxide, sulphur dioxide, nitrogen oxides and hydrocarbons in the range of C1 to C5 in the compressed air.

ISO 8573-6 describes several sampling methods, offering further details in each according Annex.

ISO 8573-6 is mainly informative rather than specifying.

The actual edition of ISO 8573-6 is out of date and thus no longer presents the state of the art.