ASTM E2624-2009 测试机械和装置扭矩校准用标准规程

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【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】:


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【英文标准名称】:Fireextinguishinginstallationsandequipmentonpremises.Specificationforcarbondioxidesystems
【原文标准名称】:住房用灭火装置及设备.第4部分:二氧化碳灭火装置规范
【标准号】:BS5306Pt.4-1986
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:
【国际标准分类号】:
【页数】:
【正文语种】:


【英文标准名称】:Informationtechnology-High-performanceparallelinterface-Part10:6400Mbit/sPhysicalLayer(HIPPI-6400-PH)
【原文标准名称】:信息技术高性能平行接口第10部分:6400Mbit/s物理层(HIPPI-6400-PH)
【标准号】:ISO/IEC11518-10-2001
【标准状态】:现行
【国别】:国际
【发布日期】:2001-03
【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/IECJTC1
【标准类型】:()
【标准水平】:()
【中文主题词】:数据传输;高性能并行接口;记录;网络互连;高性能平行接口;物理层;定义;数据处理;规范(验收);信息技术;规范;信息交换;接口;界面
【英文主题词】:Dataprocessing;Datatransmission;Definition;Definitions;HighPerformanceParallelInterfaces;HIPPI;Informationinterchange;Informationtechnology;Interfaces;Interfaces(dataprocessing);Networkinterconnection;Physicallayers;Records;Specification;Specification(approval)
【摘要】:ThispartofISO/IEC11518specifiesaphysical-level,point-to-point,full-duplex,linkinterfaceforreliable,flow-controlledtransmissionofuserdataat6400Mbrt/sperdirection,acrossdistancesofupto1km.Aparallelcoppercableinterfacefordistancesofupto40misspecified.Connectionstoaseparatelonger-distanceopticalinterfaceareprovided.Smallfixed-sizemicropacketsprovideanefficient,low-latencystructureforsmalltransfers,andacomponentforlargetransfers.Specificationsareincludedfor:-automaticretransmissiontocorrectflaweddata;-theformatofasmalldatatransferunitcalledamicropacket;-amessagestructurethatincludesroutinginformationfornetworkapplications;-end-to-end,aswellaslink-to-link,checksums;-thetimingrequirementsoftheparallelsignals;-aparallelinterfaceusingcoppercoaxialcable;-connectionstoaseparatelocalopticalinterface;-alink-levelprotocoltunedforamaximumdistanceof1km.
【中国标准分类号】:L65
【国际标准分类号】:35_100_10;35_200
【页数】:68P;A4
【正文语种】:英语