NF U44-308-2012 土壤改良剂和生长剂.pH值的测定

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【英文标准名称】:StandardTestMethodforElongationofNarrowElasticFabrics(Static-LoadTesting)
【原文标准名称】:窄幅弹性织物伸长的标准试验方法(静态负载试验)
【标准号】:ASTMD5278-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【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】:D13.59
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;纺织试验;织物
【英文主题词】:elasticfabric;elongation;staticload
【摘要】:Thistestmethodisconsideredsatisfactoryforacceptancetestingofcommercialshipmentsofnarrowelasticfabricsbecausethetestmethodisusedinthetradeforacceptancetesting.5.1.1Incaseofadisputearisingfromdifferencesinreportedtestresultswhenusingthistestmethodforacceptancetestingofcommercialshipments,thepartiesshouldconductcomparativeteststodetermineifthereisastatisticalbiasbetweentheirlaboratories.Competentstatisticalassistanceisrecommendedfortheinvestigationofbias.Asaminimum,thetwopartiesshouldtakeagroupoftestspecimensthatareashomogeneousaspossibleandthatarefromalotofmaterialofthetypeinquestion.Thetestspecimensshouldthenberandomlyassignedinequalnumberstoeachlaboratoryfortesting.Theaverageresultsfromthetwolaboratoriesshouldbecomparedusingstudent’t-testforunpaireddataandanacceptableprobabilitylevelchosenbythetwopartiesbeforetestingisbegun.Ifbiasisfound,eitherthecausemustbefoundandcorrectedorthepurchaserandthesuppliermustagreetointerpretfuturetestresultsinthelightoftheknownbias.Thistestmethodspecifiestheuseofastaticloadapparatus.Usersofthistestmethodarecautionedthatelongationtestdataobtainedusingthistestmethodarenotcomparabletoelongationtestdataobtainedusingeitherconstant-rate-of-extension(CRE)orconstant-rate-of-loading(CRL)typetensiletestingmachines.1.1Thistestmethoddeterminestheelongationcharacteristicsofnarrowelasticfabricsmadefromnaturalorman-madeelastomers,eitheraloneorincombinationwithothertextilefibers,whentestedwithastaticloadtestingprocedurebeforeorafterlaundering.Note1Fordeterminationofsimilarcharacteristicsusingtheconstant-rate-of-extension(CRE)typetensiletestingmachine,refertoTestMethodD4964.Note2Fordeterminationofsimilarcharacteristicsusingtheconstant-rate-ofload(CRL)typetensiletestingmachine,refertoTestMethodD1775.1.2Theuseofthistestmethodrequirestheselectionof,ormutualagreementupon,theeffectivestaticloadatwhichthetestresultswillbedetermined.1.3LaunderingproceduresusedwillbethosespecifiedinTestMethodAATCC135for3washinganddryingcycles.1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theinch-poundunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecifications.Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:W04
【国际标准分类号】:59_080_30
【页数】:3P.;A4
【正文语种】:


【英文标准名称】:Connectorsforelectronicequipment-Testsandmeasurements-Part5-2:Current-carryingcapacitytests;Test5b:Current-temperaturederating(IEC60512-5-2:2002);GermanversionEN60512-5-2:2002
【原文标准名称】:电子设备连接器.试验和测量.第5-2部分:载流容量试验.试验5b:电流-温度下降(IEC60512-5-2:2002);德文版本EN60512-5-2:2002
【标准号】:EN60512-5-2-2002
【标准状态】:现行
【国别】:
【发布日期】:2003-01
【实施或试行日期】:2003-01-01
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:过载试验;连续性试验;载流量;静荷载;超荷载;冲击试验;机电学;试验;电气元件;电子工程;元部件;连接器;电插头;电子仪器;测量技术;电子设备;电气工程;温度变化
【英文主题词】:Changesoftemperature;Components;Connectors;Continuitytests;Currentcarryingcapacity;Electricplugs;Electricalcomponents;Electricalengineering;Electromechanics;Electronicengineering;Electronicequipment;Electronicinstruments;Impacttests;Measuringtechniques;Overload;Overloadtests;Staticloading;Testing
【摘要】:
【中国标准分类号】:L23
【国际标准分类号】:31_220_10
【页数】:9P.;A4
【正文语种】:英语