SAE J1094 Constant Volume Sampler System for Exhaust Emissions Measurement
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来源:标准资料网
Product Code:SAE J1094
Title:Constant Volume Sampler System for Exhaust Emissions Measurement
Issuing Committee:Sae Ic Powertrain Steering Committee
Scope: This SAE Information Report describes uniform laboratory techniques for employing the constant volume sampler (CVS) system in measuring various constituents in the exhaust gas of gasoline engines installed on passenger cars and light trucks. The techniques described relate particularly to CVS systems employing positive displacement pumps. In some areas of CVS practice, alternate procedures are given as a guide toward development of uniform laboratory techniques.
【英文标准名称】:StandardSpecificationforStyle1StainlessSteelMetricNuts
【原文标准名称】:1型不锈钢米制米制螺母的标准规范
【标准号】:ASTMF836M-1998
【标准状态】:作废
【国别】:美国
【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(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:不锈钢螺母;钢连接材料螺母
【英文主题词】:nuts;steelboltingmaterials-nuts;fasteners;stainlesssteelnuts;stainlesssteels;qualityrequirements
【摘要】:
【中国标准分类号】:J13
【国际标准分类号】:21_060_20
【页数】:7P;A4
【正文语种】:英语
【英文标准名称】:Semiconductordevices-Mechanicalandclimatictestmethods-Part20-1:Handling,packing,labellingandshippingofsurface-mountdevicessensitivetothecombinedeffectofmoistureandsolderingheat
【原文标准名称】:半导体器件.机械和气候试验方法.第20-1部分:对潮湿和焊接热综合效应敏感元器件的操作,包装,标识和运输
【标准号】:BSEN60749-20-1-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-07-31
【实施或试行日期】:2009-07-31
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:气候试验;元部件;电气工程;电子工程;电子设备及元件;热学;集成电路;加标签;机械测试;潮气;抗湿;包装件;包装试验;塑料;耐力;半导体器件;半导体;航运;表面安装设备;耐钎焊温度;表面安装;表面安装装置;测试;运输
【英文主题词】:Climatictests;Components;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Heat;Integratedcircuits;Labelling;Mechanicaltesting;Moisture;Moistureresistance;Packages;Packagingtests;Plastics;Resistance;Semiconductordevices;Semiconductors;Shipping;SMD;Solderingtemperatureresistance;Surfacemounting;Surfacemountingdevices;Testing;Transport
【摘要】:ThispartofIEC60749appliestoallnon-hermeticSMDpackageswhicharesubjectedtoreflowsolderprocessesandwhichareexposedtotheambientair.ThepurposeofthisdocumentistoprovideSMDmanufacturersanduserswithstandardizedmethodsforhandling,packing,shipping,anduseofmoisture/reflowsensitiveSMDswhichhavebeenclassifiedtothelevelsdefinedinIEC60749-20.Thesemethodsareprovidedtoavoiddamagefrommoistureabsorptionandexposuretosolderreflowtemperaturesthatcanresultinyieldandreliabilitydegradation.Byusingtheseprocedures,safeanddamage-freereflowcanbeachieved,withthedrypackingprocess,providingaminimumshelflifecapabilityinsealeddry-bagsfromthesealdate.Twotestconditions,methodAandmethodB,arespecifiedinthesolderingheattestofIEC60749-20.FormethodA,moisturesoakconditionsarespecifiedontheassumptionthatmoisturecontentinsidethemoisturebarrierbagislessthan30%RH.FormethodB,moisturesoakingconditionsarespecifiedontheassumptionthatmanufacturer’sexposuretime(MET)doesnotexceed24handthemoisturecontentinsidethemoisturebarrierbagislessthan10%RH.Inanactualhandlingenvironment,SMDstestedbymethodAarepermittedtoabsorbmoistureupto30%RH,andSMDstestedbymethodBarepermittedtoabsorbmoistureupto10%RH.ThisstandardspecifiesthehandlingconditionsforSMDssubjectedtotheabovetestconditions.
【中国标准分类号】:L40
【国际标准分类号】:31_080_01
【页数】:38P.;A4
【正文语种】:英语