压缩空气.污染物测量.第2部分:油气溶胶含量

[中文适用范围]： 本文件规定了压缩空气中通常存在的液态油和油气溶胶的采样和定量分析的测试方法。 本文件不包括油蒸气的测试方法，因为它们已包含在 ISO 8573-5 中。 描述了两种不同的方法，方法 A 和方法 B。 方法 B 分为两部分，以清楚地区分获取分析用油量的程序。 方法 A 描述了使用在线聚结过滤器的油收集技术，而方法 B 使用支架中的采样盘，用溶剂从采样盘中提取收集的油，并通过红外光谱法或带有火焰离子化检测的气相色谱法进行分析。 本文件还包括使用指示器型设备进行替代油气溶胶检测的描述，请参见附件 E。 [外文原描述]： ISO 8573-2:2018 specifies test methods for the sampling and quantitative analysis of liquid oil and oil aerosols that can typically be present in compressed air. Test methods for oil vapour are excluded from this document as they are covered by ISO 8573‑5. Two different methods are described, Method A and Method B. Method B is subdivided into two parts to clearly distinguish between procedures for obtaining the quantity of oil for analysis. Method A describes an oil collection technique using inline coalescing filters whereas Method B utilizes sampling discs in a holder from which the collected oil is extracted with a solvent and analysed by infrared spectrometry or gas chromatography with flame ionization detection. ISO 8573-2:2018 also includes descriptions of alternative oil aerosol detection by the use of indicator type devices, see Annex E.