ISO 6974-3-2000 天然气 用气相色谱法测定规定的不确定度的组分 第3部分:用两填充柱测定氢、氦、氧、氮、二氧化碳和碳至C8的烃类

标准号：ISO 6974-3-2000
中文标准名称：天然气 用气相色谱法测定规定的不确定度的组分 第3部分:用两填充柱测定氢、氦、氧、氮、二氧化碳和碳至C8的烃类
英文标准名称：Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C
标准类型：E24
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：E24
国际标准分类号：75.060
适用范围：This part of ISO 6974 describes a gas chromatographic method for the quantitative determination of the content of helium, hydrogen, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons in natural gas samples using two packed columns. This method is applicable to determinations made in on-line processes or in the laboratory. It is applicable to the analysis of gases containing constituents within the mole fraction ranges given in Table 1 and which do not contain any hydrocarbon condensate. These ranges do not represent the limits of detection, but the limits within which the stated precision of the method applies. Although one or more components in a sample may not be detected present, the method can still be applicable. This part of ISO 6974 is only applicable in conjunction with parts 1 and 2 of ISO 6974.