【英文标准名称】:Instrumentsandapparatus-Part5:Measurementofquantityofmaterials-Chapter1:WeighingScales
【原文标准名称】:装置和仪器.第5部分:材料数量测量.第1节:称重标度
【标准号】:ASMEPTC19.5.1-1964
【标准状态】:作废
【国别】:美国
【发布日期】:1964
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:称重设备;衡器;标度;天平;测量仪器;称重技术;重量测量;质量(物质)
【英文主题词】:Balances;Indicators;Mass;Measuringinstruments;Scales;Weighingequipment;Weighingmachines;Weighingtechnique;Weightmeasurement
【摘要】:Weightingscalessuitableforthequantitymeasurementofmaterialsinconnectionwithpowertestsareavailableinavarietyofformswhichwillbediscussedintheensuingtext.Althoughselectionofaparticulartype,capacityordesignofweightingfacilitymaybedictatedofsuggestedbythepracticalconditionsofintendeduse,itshouldbeguidedalsobyconsiderationofseveralbasicfactorsrelatingtothedesign,constructionandperformanceofweightingscalesingeneral.
【中国标准分类号】:A53
【国际标准分类号】:17_100
【页数】:17P;A4
【正文语种】:英语


【英文标准名称】:StandardTestMethodsforNonrigidVinylChloridePolymerTubingUsedforElectricalInsulation
【原文标准名称】:电绝缘用非硬质聚氯乙烯管的标准试验方法
【标准号】:ASTMD876-2000(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:2000
【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】:D09.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:brittlenesstemperature;corrosion;dielectricbreakdownvoltage;dimensions;electricalinsulation;flammability;oilresistance;penetration;poly(vinylchloride);PVC;temperaturetests;tensionproperties/tests;tubing;vinylchloridepolymer;volumeresistivity
【摘要】:Thesetestmethodsincludemostofthetestmethodsthatareconsideredimportanttocharacterizenonrigidvinylchloridepolymertubing.Whiletheyweredevelopedinitiallyforthistypeofextrudedtubing,theiruseisnotlimitedtothistypeoftubing.Variationsinthesetestmethodsoralternatecontemporarymethodsmaybeusedtodeterminethevaluesforthepropertiesinthisstandardprovidedsuchmethodsensurequalitylevelsandmeasurementaccuracyequaltoorbetterthanthoseprescribedherein.Itistheresponsibilityoftheorganizationsusingalternatetestmethodstobeabletodemonstratethiscondition.Incasesofdispute,thetestmethodsspecifiedhereinshallbeused.Note28212;Provisionforalternatemethodsisnecessarybecauseof(1)thedesiretosimplifyproceduresforspecificapplicationswithoutalteringtheresult,and(2)thedesiretoeliminateredundanttestingandusedatageneratedduringmanufacturingprocesscontrol,includingthatgeneratedunderStatisticalProcessControl(SPC)conditions,usingequipmentandmethodsotherthanthosespecifiedherein.Anexamplewouldbetheuseoflasermicrometersoropticalcomparatorstomeasuredimensions.1.1Thesetestmethodscoverthetestingofgeneral-purpose(GradeA),low-temperature(GradeB),andhigh-temperature(GradeC)nonrigidvinylchloridepolymertubing,oritscopolymerswithothermaterials,foruseaselectricalinsulation.Forthepurposeofthesetestmethodsnonrigidtubingshallbetubinghavinganinitialelongationinexcessof100%atbreak.Note1ThesetestmethodsaresimilarbutnotidenticaltothoseinIEC60684-2.1.2Thevaluesstatedininch-poundunitsaretoberegardedasthestandard,excepttemperature,whichshallbestatedindegreesCelsius.Valuesinparenthesesareforinformationonly.1.3Theproceduresappearinthefollowingsections:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection.1.4Thisisafire-test-responsestandard.Thetestproceduredescribedmeasurestheresistanceofthetubingtoignitionorthespreadofflameafterignitionwhentestedunderthespecifiedconditions.1.5Thisstandardisusedtomeasureanddescribetheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.1.6Theeffectofelevatedtemperatureisindicatedbythechangesinultimateelongationandweightcausedbyexposureofthetubingtoelevatedtemperaturesforaspecifiedtimeundercontrolledconditionsofaircirculation.
【中国标准分类号】:K15
【国际标准分类号】:29_035_20
【页数】:13P.;A4
【正文语种】: