GSO ISO 4437-2:2023由GSO 发布于 2023-05-03。
GSO ISO 4437-2:2023在国际标准分类中归属于: 83.140.30 塑料管、配件和阀门。
GSO ISO 4437-2:2023 的最新版本是哪一版？
最新版本是 GSO ISO 4437-2:2023 。
ISO 4437-2:2014 specifies the characteristics of pipes made from polyethylene (PE) for piping systems in the field of the supply of gaseous fuels. It also specifies the test parameters for the test methods referred to in this International Standard. In conjunction with part of ISO 4437-1, ISO 4437-3, ISO 4437-4, and ISO 4437-5, it is applicable to PE pipes, fittings and valves, their joints, and joints with components of PE and other materials intended to be used under the following conditions: the maximum operating pressure (MOP) is based on the design stress determined from the compound minimum required strength (MRS) divided by the C factor, and taking into account rapid crack propagation (RCP) requirements; and a temperature of 20 °C is taken as reference temperature for the design basis. ISO 4437-2:2014 covers three types of pipes: PE pipes (outside diameter dn) including any identification stripes; PE pipes with co-extruded layers on either or both the outside and/or inside of the pipe (total outside diameter dn), where all PE layers have the same MRS rating; and PE pipes (outside diameter dn) with a peelable and contiguous thermoplastics additional layer on the outside (coated pipe).
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证：京ICP证110310号