標準號：ISO 6326-1-2007
中文標準名稱：天然氣.硫化合物測定.第1部分:一般介紹
英文標準名稱：Natural gas - Determination of sulfur compounds - Part 1: General introduction
標準類型：E24
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：E24
國際標準分類號：75.060
適用范圍：This part of ISO 6326 gives a brief description of standardized methods that can be used for the determinationof sulfur compounds in natural gas.The principle of each method is described generally, the range of concentrations for which the method issuitable is indicated, and the analytical range and precision of each method is given. It should enable the userto select judiciously the proper method for the application being considered. Sulfur analysis is performed inorder to determinea) total sulfur,b) sulfur contained in specific groups (e.g. thiol sulfur),c) individual sulfur compounds, andd) specific groups of sulfur compounds.The standardized methods available in the field of sulfur analysis are? the Wickbold combustion method: for total sulfur determination (ISO 4260),? the Lingener combustion method: for total sulfur determination (ISO 6326-5),? gas chromatography: for determination of individual sulfur compounds (ISO 19739), and? potentiometry: for determination of hydrogen sulfide, carbonyl sulfide and thiol compounds (ISO 6326-3).Other methods for the determination of sulfur compounds are available but are not considered here. Table 1gives an overview of the standardized methods which can be used for the determination of total sulfur,hydrogen sulfide, carbonyl sulfide, tetrahydrothiophene, thiol sulfur, individual thiols, individual thiophenes,individual organic sulfides and disulfides.