标准编号：ISO 8573-4:2019
中文名称：压缩空气 污染物测量 第4部分：颗粒含量
英文名称：Compressed air — Contaminant measurement — Part 4: Particle content
发布日期：2019-02
标准范围
This document provides a method for sampling compressed air and a guide for choosing suitable
measuring equipment to determine its particle size and concentration by number (to be referenced as
“concentration” throughout this document). It also describes the limitations of the various measurement
methods and describes the evaluation and uncertainty considerations.
This document will report the particle size and concentration of all types of particle combined and
does not aim to be able to segregate the separate solid and liquid particle fractions. When it is required
that the concentration of a specific fraction is to be determined then recourse to the relevant standard
method from the ISO 8573 series is recommended.
NOTE 1 The test methods described in this document are those suitable for determining the purity classes
given in ISO 8573-1.
NOTE 2 Particle content determined as concentration by mass is dealt with in ISO 8573-8.
NOTE 3 This document does not address instances where non-isothermal conditions exist, and separate
arrangements should be made where particles may be formed by vapour condensation or lost through
evaporation.
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