Product Code:SAE J1988
Title:Residual Aligning Moment Test
Issuing Committee:Highway Tire Forum Steering Committee
Scope: This Recommended Practice describes the determination of tire pull force properties for an uninclined tire (SAE J670e) on a laboratory flat surface tire force and moment machine. It is suitable for accurately determining pull forces and residual aligning moments for passenger and light-truck tires. These properties are important determinants of vehicle trim. They describe steady-state, free-rolling pull effects ascribable to tires. The test method described in this document is suitable for comparative evaluation of tires for research and development purposes. The method is also suitable for modeling when followed carefully.【英文标准名称】:Plasticspipingsystems-Polyethylene(PE)pipesandfittingsforwatersupply-General
【原文标准名称】:塑料管道系统.给水用聚乙烯(PE)管和管件.总则
【标准号】:BSISO4427-1-2007
【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】:定义;尺寸;管件;作标记;材料规范;PE;聚乙烯管道;管道配件;管;塑料管;聚乙烯;规范;输水管道;水管;给水
【英文主题词】:Definitions;Dimensions;Fittings;Marking;Materialsspecification;PE;PEpipes;Pipefittings;Pipes;Plasticpipes;Polyethylene;Specification;Waterpipelines;Waterpipes;Watersupply
【摘要】:ThispartofISO4427specifiesthegeneralaspectsofpolyethylene(PE)pipingsystems(mainsandservicepipes)intendedfortheconveyanceofwaterforhumanconsumption,includingrawwaterpriortotreatmentandwaterforgeneralpurposes.Italsospecifiesthetestparametersforthetestmethodstowhichitrefers.InconjunctionwiththeotherpartsofISO4427,itisapplicabletoPEpipes,fittings,theirjointsandtomechanicaljointswithcomponentsofothermaterials,intendedtobeusedunderthefollowingconditions:a)amaximumoperatingpressure(MOP)uptoandincluding25bar1);b)anoperatingtemperatureof20°Casthereferencetemperature.NOTE1Forapplicationsoperatingatconstanttemperaturesgreaterthan20°Candupto40°C,seeAnnexA.NOTE2ISO4427coversarangeofmaximumoperatingpressuresandgivesrequirementsconcerningcoloursandadditives.Itistheresponsibilityofthepurchaserorspecifiertomaketheappropriateselectionsfromtheseaspects,takingintoaccounttheirparticularrequirementsandanyrelevantnationalguidanceorregulationsandinstallationpracticesorcodes.
【中国标准分类号】:Q81
【国际标准分类号】:23_040_20;23_040_45
【页数】:24P.;A4
【正文语种】:英语