气体分析. 取样指南

[中文适用范围]： 本标准规定了气体分析采样的一般规定，并给出了与气体分析采样相关的术语的基本定义，包括采样装置、采样方法、采样技术考虑和采样安全。 本文件适用于压力容器和管道中气体的直接和间接采样，包括纯气体和气体混合物。 压缩气体和液化气体均被考虑。 本文件适用于加工气体的取样，不涉及气体处理过程。 规定的取样程序不适用于其他国际标准所涉及的特殊产品的取样，例如液化石油气（参见 ISO 4257）和气态天然气（参见 ISO 10715）。 [外文原描述]： This document specifies the general provisions and gives the basic definitions of terms relating to sampling for gas analysis, including sampling devices, sampling methods, sampling technical considerations, and sampling safety. This document applies to both direct and indirect sampling of gas in pressure receptacles and pipelines, including pure gases and gas mixtures. Compressed and liquefied gases are both considered. This document applies to the sampling of processed gases and does not involve gas treatment processes. The sampling procedures specified are not intended for the sampling of special products which are the subject of other International Standards, such as liquefied petroleum gases (see ISO 4257) and gaseous natural gases (see ISO 10715).