ISO 1169-2006 锌合金.铝含量的测定.滴定法
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【英文标准名称】:Zincalloys-Determinationofaluminiumcontent-Titrimetricmethod
【原文标准名称】:锌合金.铝含量的测定.滴定法
【标准号】:ISO1169-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-07
【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/TC18
【标准类型】:()
【标准水平】:()
【中文主题词】:合金;铝;铝合金;铝含量;分析;化学分析和试验;含量测定;压模铸造;EDTA;轻质合金;轻质金属;材料试验;分析方法;试验;滴定法;容量分析;锌;锌合金
【英文主题词】:Alloys;Aluminium;Aluminiumalloys;Aluminiumcontents;Analysis;Chemicalanalysisandtesting;Determinationofcontent;Diecasting;EDTA;Lightalloys;Lightmetals;Materialstesting;Methodsofanalysis;Testing;Titration;Titrimetry;Volumetricanalysis;Zinc;Zincalloys
【摘要】:ThisInternationalStandardspecifiesatitrimetricmethodforthedeterminationofaluminiuminzincalloys.ItisapplicabletotheproductsspecifiedinISO301.Itissuitableforthedeterminationofaluminiumcontents(massfractions)between3%and30%.
【中国标准分类号】:H62
【国际标准分类号】:77_120_60
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:StandardPracticeforTorqueCalibrationofTestingMachinesandDevices
【原文标准名称】:测试机械和装置扭矩校准用标准规程
【标准号】:ASTME2624-2009
【标准状态】:现行
【国别】:
【发布日期】:2009
【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】:E28.01
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:校准;分辨率;扭转率
【英文主题词】:calibration;resolution;torquerange
【摘要】:Testingmachinesthatapplyandindicatetorqueareusedinmanyindustries,inmanyways.Theymaybeusedinaresearchlaboratorytomeasurematerialproperties,andinaproductionlinetoqualifyaproductforshipment.Nomatterwhattheenduseofthemachinemaybe,itisnecessaryforuserstoknowtheamountoftorquethatisapplied,andthattheaccuracyofthetorquevalueistraceabletotheNationalStandards.Thisstandardprovidesaproceduretoverifythesemachinesanddevices,inorderthattheindicatedtorquevaluesmaybetraceable.Akeyelementtohavingtraceabilityisthatthedevicesusedinthecalibrationproduceknowntorquecharacteristics,andhavebeencalibratedinaccordancewithPracticeE2428.Thisstandardmaybeusedbythoseusing,thosemanufacturing,andthoseprovidingcalibrationservicefortorquecapabletestingmachinesordevicesandrelatedinstrumentation.1.1Thispracticecoversproceduresandrequirementsforthecalibrationoftorqueforstaticandquasi-statictorquecapabletestingmachinesordevices.Thesemay,ormaynot,havetorqueindicatingsystemsandincludethosedevicesusedforthecalibrationofhandtorquetools.Testingmachinesmaybecalibratedbyoneofthethreefollowingmethodsorcombinationthereof:1.1.1Useofstandardweightsandleverarms.1.1.2Useofelastictorquemeasuringdevices.1.1.3Useofelasticforcemeasuringdevicesandleverarms.1.1.4Anyofthemethodsrequireaspecificuncertaintyofmeasurementandatraceabilityderivedfromnationalstandardsofmassandlength.1.2Theproceduresof1.1.1,1.1.2,and1.1.3applytothecalibrationofthetorque-indicatingsystemsassociatedwiththetestingmachine,suchasascale,dial,markedorunmarkedrecorderchart,digitaldisplay,etc.Inallcasesthebuyer/owner/usermustdesignatethetorque-indicatingsystem(s)tobecalibratedandincludedinthereport.1.3Sinceconversionfactorsarenotrequiredinthispractice,eitherenglishunits,metricunits,orSIunitscanbeusedasthestandard.1.4Torquevaluesindicatedondisplays/printoutsoftestingmachinedatasystemsx2014;betheyinstantaneous,delayed,stored,orretransmittedx2014;whichareCalibratedwithprovisionsof1.1.1,1.1.2or1.1.3oracombinationthereof,andarewithinthex00B1;1%ofreadingaccuracyrequirement,complywiththispractice.1.5Thefollowingappliestoallspecifiedlimitsinthisstandard:Forpurposesofdeterminingconformancewiththesespecifications,anobservedvalueoracalculatedvalueshallberoundedx201C;tothenearestunitx201D;inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththeroundingmethodofPracticeE29,forUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N71
【国际标准分类号】:19_060
【页数】:8P.;A4
【正文语种】:
【英文标准名称】:StandardTestMethodsforElectricalConductivityandResistivityofWater
【原文标准名称】:水的电导性和电阻率的标准试验方法
【标准号】:ASTMD1125-1995(2005)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D19.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:电阻率;水;电导性;试验
【英文主题词】:cellconstant;conductivity;resistivity;temperaturecoefficient
【摘要】:Thesetestmethodsareapplicableforsuchpurposesasimpuritydetectionand,insomecases,thequantitativemeasurementofionicconstituentsdissolvedinwaters.Theseincludedissolvedelectrolytesinnaturalandtreatedwaters,suchasboilerwater,boilerfeedwater,coolingwater,andsalineandbrackishwater.4.1.1Theirconcentrationmayrangefromtracelevelsinpurewaters(1)4tosignificantlevelsincondensedsteam(seeTestMethodsD2186andD4519,andRef(2)),orpuresaltsolutions.4.1.2Wheretheprincipalinterestintheuseofconductivitymethodsistodeterminesteampurity,seeRef(3).Thesetestmethodsmayalsobeusedforcheckingthecorrectnessofwateranalyses(4).1.1Thesetestmethodscoverthedeterminationoftheelectricalconductivityandresistivityofwater.Thefollowingtestmethodsareincluded:RangeSectionsTestMethodA-FieldandRoutineLaboratory10to20000012to18MeasurementofStatic(Non-Flowing)Samples956S/cmTestMethodB-ContinuousIn-LineMeasure5to20000019to23ment956S/cm
