BS ISO 8573-5:2025

This document specifies the test method for determining the content of oil vapour in compressed air using pressurized sampling and gas chromatography.

This document elaborates sampling, measurement, evaluation, uncertainty considerations and reporting in respect of the compressed air purity class for oil, in accordance with ISO 8573‑1.

For organic vapours and other gaseous contaminants, the same sampling procedure can be used, however the analysis method will be different depending on the target component. As guidance, ISO 8573‑6 and ISO 16000‑6 can be used.