1.1 该索引确定了适用于在压力下输送水和其他液体的球墨铸铁压力管的规格。 注1: 本标准的文本参考了提供解释材料的注释和脚注。这些注释和脚注（表和图中的除外）不应视为本标准的要求。 1.2 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认标准化原则制定的。

1.1 This index identifies specifications that cover ductile iron pressure pipe suitable for carrying water and other liquids under pressure. Note 1: The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard. 1.2 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.