本文件规定了用于气体传输和分配装置的气体压力调节器（以下简称调节器）的安全、结构、性能、测试和文件要求。 本文件适用于工作压力大于500 kPa且不超过10 MPa（100 bar）且公称直径不超过DN 400的调节器，用于天然气、人造气体、生物甲烷或液化石油气（LPG）等燃料气体。 本文件适用于: -用于产品型式试验、常规试验和产品监督试验的试验方法； -调节器，其使用管道气体作为控制能量源而不受任何外部电源的辅助； -在同一主体上集成第二个调节器的调节器，用作监控器，符合本文件中的要求；-根据ISO 23555-3集成了安全关闭装置(SSD)的调节器； -包含符合本文件要求的蠕变（排气）缓解装置和/或排气限制器的调节器。 本文件不适用于: -家用气体上游/上游/下游的调节器？安装在家用燃气表下游的消费器具； -设计为并入服务管线（从气体基础设施中的主管道到气体输送点的管道）中使用的压力控制系统的调节器，在正常情况下申报的体积流量≤200立方米/小时，申报的入口压力≤500 kPa（5巴）； -工业过程控制阀，例如IEC 60534(所有部件)； -在侵蚀性/酸性气体环境（含有水和H2S的气体环境被认为是酸性的）或严重腐蚀条件下使用的调节器；-如果未提供附加信息（例如污染物、液体等），则在使用可再生能源（例如氢气含量超过10%的H2NG）和/或废气（例如沼气等）的条件下的调节器。

This document specifies safety, constructional, performance, testing and documentation requirements for gas pressure regulators for use in gas transmission and distribution installations (hereafter referred to as regulators). This document is applicable to regulators with operating pressures greater than 500 kPa and up to and including 10 MPa (100 bar) and nominal diameters up to DN 400 for use with fuel gases as natural gas, manufactured gas, biomethane or liquefied petroleum gas (LPG). This document is applicable to: —    test methods which are intended for product type test, routine tests and product surveillance tests; —    regulators which use the pipeline gas as a source of control energy unassisted by any external power source; —    regulators integrating on the same body a second regulator, used as monitor, complying with the requirements in this document; —    regulators integrating a safety shut off device (SSD) according to ISO 23555-3; —    regulators incorporating a creep (venting) relief device and/or a vent limiter complying with the requirements in this document. This document does not apply to: —    regulators upstream from/on/in domestic gas？consuming appliances which are installed downstream of domestic gas meters; —    regulators designed to be incorporated into pressure control systems used in service lines (pipework from the main pipework in a gas infrastructure to the point of delivery of the gas) with declared volumetric flow rate ≤ 200 m³/h at normal conditions and declared inlet pressure ≤ 500 kPa (5 bar); —    industrial process control valves, such as IEC 60534 (all parts); —    regulators used in aggressive/sour gas environments (gas environments containing water and H2S are considered sour) or severely corrosive conditions; —    regulators in service conditions with renewables (e.g. H2NG with hydrogen more than 10 %) and/or waste gases (e.g. biogas etc.), if additional information is not provided (e. g. contaminant, liquid, etc.).