BS ISO 14912-2003
氣體分析.氣體混合成分數據的轉換

Gas ananlysis - Conversion of gas mixture composition data

BS ISO 14912-2003 發布歷史

14912:2003 defines the following quantities commonly used to express the composition of gas mixtures: mole fraction, mass fraction and volume fraction, as well as mole concentration, mass concentration and volume concentration. Relating to these quantities of composition, ISO 14912:2003 provides methods for the conversion between different quantities and the conversion between different state conditions. Conversion between different quantities means calculating the numerical value of an analyte content in terms of one of the quantities listed above from the numerical value of the same analyte content, at the same pressure and temperature of the gas mixture, given in terms of another of these quantities. Conversion between different state conditions means calculating the numerical value of an analyte content, in terms of one of the quantities listed above, under one set of state conditions from the numerical value of the same quantity under another set of state conditions, i.e. pressure and temperature, of the gas mixture. Gas mixture composition can be converted simultaneously between different quantities of composition and different state conditions by combination of the two types of conversion. ISO 14912:2003 is only applicable to homogeneous and stable gas mixtures. Therefore any state conditions (pressure and temperature) considered need to be well outside from the condensation region of the gas mixture and that of each of the specified analytes.

BS ISO 14912-2003由英國標準學會 GB-BSI 發布于 2003-03-20，并于 2003-03-20 實施。

BS ISO 14912-2003 在中國標準分類中歸屬于: G04 基礎標準與通用方法，在國際標準分類中歸屬于: 71.040.40 化學分析。

BS ISO 14912-2003的歷代版本如下：

• 2003年03月20日 BS ISO 14912-2003 氣體分析.氣體混合成分數據的轉換

BS ISO 14912-2003 于 2003-03-20 變更為 BS EN ISO 14912-2006 氣體分析.氣體混合成分數據的轉換。

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標準號

BS ISO 14912-2003

發布日期

2003年03月20日

實施日期

2003年03月20日

廢止日期

無

中國標準分類號

G04

國際標準分類號

71.040.40

發布單位

GB-BSI

代替標準

BS EN ISO 14912-2006

被代替標準

01/123669 DC-2001

適用范圍

14912:2003 defines the following quantities commonly used to express the composition of gas mixtures: mole fraction, mass fraction and volume fraction, as well as mole concentration, mass concentration and volume concentration. Relating to these quantities of composition, ISO 14912:2003 provides methods for the conversion between different quantities and the conversion between different state conditions. Conversion between different quantities means calculating the numerical value of an analyte content in terms of one of the quantities listed above from the numerical value of the same analyte content, at the same pressure and temperature of the gas mixture, given in terms of another of these quantities. Conversion between different state conditions means calculating the numerical value of an analyte content, in terms of one of the quantities listed above, under one set of state conditions from the numerical value of the same quantity under another set of state conditions, i.e. pressure and temperature, of the gas mixture. Gas mixture composition can be converted simultaneously between different quantities of composition and different state conditions by combination of the two types of conversion. ISO 14912:2003 is only applicable to homogeneous and stable gas mixtures. Therefore any state conditions (pressure and temperature) considered need to be well outside from the condensation region of the gas mixture and that of each of the specified analytes.