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【英文标准名称】:Plasticspipingsystems-Polyethylene(PE)pipesandfittingsforwatersupply-Pipes
【原文标准名称】:塑料管道系统.给水用聚乙烯(PE)管和管件.管
【标准号】:BSISO4427-2-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-09-28
【实施或试行日期】:2007-09-28
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:尺寸;几何特性;作标记;材料规范;机械特性;PE;聚乙烯管道;物理特性;管;塑料管;塑料;聚乙烯;特性;规范;输水管道;水管;给水
【英文主题词】:Dimensions;Geometricalproperties;Marking;Materialsspecification;Mechanicalproperties;PE;PEpipes;Physicalproperties;Pipes;Plasticpipes;Plastics;Polyethylene;Properties;Specification;Waterpipelines;Waterpipes;Watersupply
【摘要】:ThispartofISO4427specifiesthepipesmadefrompolyethylene(PE)intendedfortheconveyanceofwaterforhumanconsumption,includingrawwaterpriortotreatmentandwaterforgeneralpurposes.Italsospecifiesthetestparametersforthetestmethodstowhichitrefers.InconjunctionwiththeotherpartsofISO4427,itisapplicabletoPEpipes,theirjoints,tojointswithcomponentsofPEandtomechanicaljointswithcomponentsofothermaterials,intendedtobeusedunderthefollowingconditions:a)amaximumoperatingpressure(MOP)uptoandincluding25bar1);b)anoperatingtemperatureof20°Casthereferencetemperature.NOTE1Forapplicationsoperatingatconstanttemperaturesgreaterthan20°Candupto40°C,seeISO4427-1:2007,AnnexA.NOTE2ISO4427coversarangeofmaximumoperatingpressuresandgivesrequirementsconcerningcoloursandadditives.Itistheresponsibilityofthepurchaserorspecifiertomaketheappropriateselectionsfromtheseaspects,takingintoaccounttheirparticularrequirementsandanyrelevantnationalguidanceorregulationsandinstallationpracticesorcodes.Threetypesofpipearespecified:?PEpipes(outsidediameterdn),includinganyidentificationstripes;?PEpipeswithco-extrudedlayersoneitherorboththeoutsideand/orinsideofthepipe(totaloutsidediameterdn),asspecifiedinAnnexA,wherealllayershavethesameMRSrating.?PEpipes(outsidediameterdn)havingapeelable,contiguous,thermoplasticsadditionallayerontheoutsideofthepipe(“coatedpipe”),seeAnnexA.1)1bar=0,1MPa=105Pa;1MPa=1N/mm2.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_20
【页数】:28P.;A4
【正文语种】:英语


【英文标准名称】:SolventVaporDegreasingOperations
【原文标准名称】:溶剂蒸气脱脂操作方法
【标准号】:ASTMD3698-1992
【标准状态】:作废
【国别】:美国
【发布日期】:1992
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:除油脂;药液;工艺;溶剂;蒸气
【英文主题词】:degreasing;solvents;chemicals;processes;vapours
【摘要】:
【中国标准分类号】:G04
【国际标准分类号】:87_060_30
【页数】:4P;A4
【正文语种】:英语