ISO 4437:2007 燃气供应用埋地聚乙烯（PE）管材 公制系列 规范

标准编号：ISO 4437:2007

中文名称：燃气供应用埋地聚乙烯（PE）管材 公制系列 规范

英文名称：Buried polyethylene (PE) pipes for the supply of gaseous fuels — Metric series — Specifications

发布日期：2007-06

标准范围

This International Standard specifies the general properties of the polyethylene (PE) compounds for themanufacture of pipes, the physical and mechanical properties of the pipes made from these compounds, andthe requirements for the marking of such pipes, intended to be used for the supply of gaseous fuels.It deals with three types of pipe:? 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 outsidediameter dn) as specified in Annex C, where all layers have the same MRS rating;? PE pipes (outside diameter dn) with a peelable, contiguous thermoplastics additional layer on the outsideof the pipe (“coated pipe”) as specified in Annex D.This International Standard also gives guidance on a calculation and design scheme on which the maximumoperating pressure (MOP) of the pipes is based. The pipes are intended to be buried.NOTE For above-ground application of pipes conforming to this International Standard, the pipes need always to beprotected by a casing pipe.

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