您的位置: 标准下载 » 协会标准 » ASTM 美国材料与试验协会 »
热门标准
下载排行

ASTM D2758-1994(2009) 使用发动机功率计测试发动机冷却剂的标准试验方法

作者:标准资料网 时间:2024-05-21 01:21:38  浏览:9784   来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforEngineCoolantsbyEngineDynamometer
【原文标准名称】:使用发动机功率计测试发动机冷却剂的标准试验方法
【标准号】:ASTMD2758-1994(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【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】:D15.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:dynamometer;enginecoolants;enginedynamometer;Airinduction;Cleanenginetest;Corrosion--enginecoolants;Dynamometertesting;Enginecoolantcorrosivity;Exhaustgasleakage;Inhibitorstability;Leaktesting;Leaktesting--enginecoolants;S
【摘要】:Thistestmethodprovidesalaboratorytechniquecapableofreproducingthecomplexenvironmentalstressesacoolantencountersunderactualengineoperatingconditions.Thetestmethodprovidesimproveddiscriminationoverglasswareandsimulatedservicetestsandimprovedcorrelationwithfieldservice.Althoughthetestmethodisparticularlyvaluablefordevelopingcoolantsforincreasedservicerequirements,itremainsthatfieldtestingisnecessarytoevaluatecoolantperformancecompletely.1.1Thistestmethodcoversafull-scalecleanenginetestdesignedtoevaluatecorrosionprotectionandinhibitorstabilityofenginecoolantsundersimulatedheavy-dutydrivingconditions.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardsstatementsaregiveninSection6.
【中国标准分类号】:G04
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语


下载地址: 点击此处下载
返回跳至顶部
基本信息
标准名称：水刺机用镍网
英文名称：Nickel screen for spun-laced machine
中标分类： 纺织 >> 纺织机械与器具 >> 纺部机械与器具
ICS分类： 纺织和皮革技术 >> 纺织机械 >> 其他纺织机械
发布部门：中华人民共和国工业和信息化部
发布日期：2012-05-24
实施日期：2012-11-01
首发日期：
作废日期：
归口单位：全国纺织机械与附件标准化技术委员会
起草单位：常州新仁黎纺织器材公司、宜兴申联机械制造有限公司、恒天重工股份有限公司、山东省永信非织造材料有限公司
出版社：中国标准出版社
出版日期：2012-11-01
页数：8页
适用范围

本标准规定了水刺机用镍网的术语和定义、型式、分类与标记、要求、试验方法、检验规则、标志、包装、运输和贮存。
本标准适用于在水刺法非织造布生产中，托持纤维网并对水射流进行反弹的圆筒型镍网。

前言

没有内容

目录

没有内容

引用标准

没有内容

所属分类： 纺织 纺织机械与器具 纺部机械与器具 纺织和皮革技术 纺织机械 其他纺织机械
【英文标准名称】:StandardTestMethodforDeterminationofParticleContributionfromGasDistributionSystemValves
【原文标准名称】:测定从气体分配系统阀门产生的粒子成分的标准试验方法
【标准号】:ASTMF1394-1992(2005)
【标准状态】:现行
【国别】:
【发布日期】:1992
【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】:F01.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;阀门;分配系统;气体分配
【英文主题词】:Condensationnucleuscounter(CNC);Electricalconductors-semiconductors;Flowandflowrate-semiconductorapplications;Gasdistributionsystems;Laserparticlecounter(LPC);Lasersandlaserapplications;Mechanicalstress;Minimumdetectionlim
【摘要】:Thepurposeofthistestmethodistodefineaprocedurefortestingcomponentsintendedforinstallationintoahigh-puritygasdistributionsystem.Applicationofthistestmethodisexpectedtoyieldcomparabledataamongcomponentstestedforthepurposesofqualificationforthisinstallation.BackgroundTesting8212;Thistestmethodusesbackgroundtestingtoensurethatthesystemisnotcontributingparticlesabovealow,acceptablelevel.Thisensuresthatcountsseenarefromthetestdevice,notfromacontaminatedsystem.Thetechniquesusedtoobtainbackgroundcountsdonotproduceconditionsidenticaltotheconditionsexistingwhenatestdeviceisinplace.Itisrecommendedthatthecontrolproductsberunperiodicallytoseethattheygiveconsistentresults.Thesecontrolproductsshouldbethelowestparticlereleaseproducts.Theywillbeadditionalproofthatthesystemisnotcontributingexcessparticlesduringthestatic,dynamic,orimpactportionsofthetest.Thistestmethodcanbeusedfortestinglengthsoftubing.Theflowcriteriawillbeidenticaltothatindicatedforvalves.Atubingtestwouldonlyincludethestaticbackground,theimpactbackground,andthestaticandimpactportionsofthemethod.Adynamicportioncouldbeaddedbyactuatingtheupstreampneumaticvalve(PV1),thuscreatingaflowsurgetothetestlengthoftubing.1.1Thistestmethodcoversgasdistributionsystemcomponentsintendedforinstallationintoahigh-puritygasdistributionsystem.1.1.2Thistestmethoddescribesaproceduredesignedtodrawstatisticallysignificantcomparisonsofparticulategenerationperformanceofvalvestestedunderaggressiveconditions.1.1.3Thistestmethodisnotintendedasamethodologyformonitoringon-goingparticleperformanceonceaparticularvalvehasbeentested.1.2Thistestmethodutilizesacondensationnucleuscounter(CNC)appliedtoin-linegasvalvestypicallyusedinsemiconductorapplications.Itappliestoautomaticandmanualvalvesofvarioustypes(suchasdiaphragmsorbellows),6.3through12.7-mm(1/4through1/2-in.)size.Forapplicationsofthistestmethodtolargervalves,seethetableintheappendix.1.2.1Valveslargerthan12.7mm(1/2in.)canbetestedbythismethodology.Theteststandmustbesizedaccordingly.Componentslargerthan12.7mm(1/2in.)shouldbetestedwhilemaintainingaReynoldsnumberof20000to21000.ThisistheReynoldsnumberfor12.7-mm(1/2-in.)componentstestedatavelocityof30.5m/s(100ft/s).1.3Limitations:1.3.1Thistestmethodisapplicabletototalparticlecountgreaterthantheminimumdetectionlimit(MDL)ofthecondensationnucleusparticlecounteranddoesnotconsiderclassifyingdataintovarioussizeranges.1.3.1.1Itisquestionablewhethersignificantdatacanbegeneratedfromnondynamiccomponents(suchasfittingsandshortlengthsoftubing)tocompare,withstatisticalsignificance,tothedatageneratedfromthespoolpiece.Forthisreason,thistestmethodcannotreliablysupportcomparisonsbetweenthesetypesofcomponents.1.3.1.2Ifdetectionorclassificationofparticles,orboth,inthesizerangeoflaserparticlecounter(LPC)technologyisofinterest,anLPCcanbeutilizedfortestingcomponents.Flowrates,testtimes,samplingapparatus,anddataanalysisoutlinedinthistestmethoddonotapplyforusewithanLPC.Becauseofthesevariations,datafromCNCsarenotcomparabletodatafromLPCs.1.3.2Thistestmethodspecifiesflowandmechanicalstressconditionsinexcessofthoseconsideredtypical.Theseconditionsshouldnotexceedthoserecommendedbythemanufacturer.Actualperformanceundernormaloperatingconditionsmayvary.......
【中国标准分类号】:J16
【国际标准分类号】:23_060_20;23_060_10
【页数】:27P.;A4
【正文语种】: