本文件规定了一种文本文件格式——XML文件格式，用于报告天然气分析结果和其他与天然气相关的数据。文件名包括的扩展名时适用。XML（不区分大小写）。 XML文件格式对于ISO？的输出很有用6974-1用于成分和ISO6974-2对于不确定性，对于ISO的输入6976和ISO的输入10723用于性能评估。通常是分析证书上提供的气体成分，或性能评估的结果，这些结果将被读取到Excel电子表格中进行数据处理。

This document specifies a text file format - XML file format - for reporting natural gas analysis results and other data relevant to natural gas. The file name is applicable when it includes the extension of.XML (case insensitive). The XML file format is useful for output from ISO？6974-1^[1] for composition and ISO？6974-2^[2] for uncertainty, for input for ISO？6976^[3] and for input for ISO？10723^[4] for performance evaluation. Typically these would be the gas composition as provided on an analysis certificate, or results from a performance evaluation that would be read into an Excel spreadsheet for data processing.