ISO 16871-2003 塑料管道系统.塑料管道和配件.自然风化法

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【英文标准名称】:Plasticspipingandductingsystems-Plasticspipesandfittings-Methodforexposuretodirect(natural)weathering
【原文标准名称】:塑料管道系统.塑料管道和配件.自然风化法
【标准号】:ISO16871-2003
【标准状态】:现行
【国别】:国际
【发布日期】:2003-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC138
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;管系统;风化;塑料;老化试验;测量;试样;配件;试验;测量技术;耐力;管;曝露室外;抗风化能力;保护管;管道配件;塑料管;环境条件
【英文主题词】:Ageingtests;Environmentalcondition;Fittings;Measurement;Measuringtechniques;Outdoorexposure;Pipefittings;Pipes;Pipingsystem;Plasticpipes;Plastictubes;Plastics;Protectivetubes;Resistance;Testequipment;Testspecimens;Testing;Weatherresistance;Weathering
【摘要】:ThisInternationalStandardspecifiesamethodforexposingplasticspipesandfittings,individuallyorassembled,oraspiecestherefrom,tonaturalweatheringinordertoassesschanges.NOTE1Theexposureisconsideredappropriateforevaluatingcomponentssubjecttoyardstoragepriortoinstallationandusewithoutfurtherexposuretodirectweathering,andisquantifiedtopromoterationalizationofexposuredosesandcomparabilityofdata.NOTE2Forexposuresappropriatetotropicalorequatorialconditions,attentionisdrawntoISO877.
【中国标准分类号】:G33
【国际标准分类号】:23_040_20;23_040_45
【页数】:7P;A4
【正文语种】:英语

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【英文标准名称】:StandardTestMethodsforWaterVaporDiffusionResistanceandAirFlowResistanceofClothingMaterialsUsingtheDynamicMoisturePermeationCell
【原文标准名称】:使用动态透湿单元法测试布质材料耐水蒸气扩散性和耐气流性的标准试验方法
【标准号】:ASTMF2298-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:F23.60
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:airflowresistance;dynamicmoisturepermeationcell;watervapordiffusion;watervapordiffusionresistance;watervaporflux;watervaportransmissionrate
【摘要】:Thewatervaportransportpropertiesoftextilematerialsareofconsiderableimportanceindeterminingthecomfortpropertiesofclothingsystems.Watervaportransportthroughporoustextilesmayoccurduetobothdiffusion(drivenbyvaporconcentrationdifferences)andconvection(drivenbygaspressuredifferences).Forairpermeableporousmaterials,averysmallpressuregradientcanproducelargeconvectiveflowsthroughtheporesinthestructure.Inmanystandardwatervaporpermeabilitytestmethods,whenusedformaterialswithhighairpermeability,slightvariationsinpressuregradientacrossaspecimenwillgreatlyinfluencethemeasuredwatervaportransportproperties.Therefore,thewatervaportransportpropertiesoftheporousandnon-poroustextilematerialscannotbedirectlycomparedwhenthemethodhasnoprovisionforcontrollingthepressuregradient.Thistestmethoddeterminesthediffusionandconvectionpropertiesfromthesametestandgeneratesdatathatallowsdirectcomparisonoftheresultsobtainedbetweenmaterials.1.1Thistestmethodcoversthemeasurementofthemoisturevaportransportandgasflowpropertiesoffabrics,membranes,andmembranelaminatesusedforprotectivematerials.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:61_020
【页数】:10P.;A4
【正文语种】:

Product Code:SAE AMS4158
Title:Aluminum Alloy, Extrusions 6.8 Zn - 2.75 Mg - 2.0 Cu - 0.3 Cr (7178-T6) (Cancelled Jul 1981)
Issuing Committee:
Scope: