BS QC 420100-1992 电子元器件质量评估协调体系.电子设备用变阻器.电涌抑制变阻器分规范
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【英文标准名称】:Harmonizedsystemofqualityassessmentforelectriccomponents-Varistorsforuseinelectronicequipment-Sectionalspecificationforsurgesuppressionvaristors
【原文标准名称】:电子元器件质量评估协调体系.电子设备用变阻器.电涌抑制变阻器分规范
【标准号】:BSQC420100-1992
【标准状态】:作废
【国别】:英国
【发布日期】:1992-07-15
【实施或试行日期】:1992-07-15
【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】:性能;详细规范;工作环境;统计质量控制;压敏电阻器;电气保护设备;电阻器;过电压保护;半导体电阻器;试验条件;检验;认可试验;质量保证体系;电子设备及元件;额定值;资格鉴定;评估质量
【英文主题词】:Electricalcomponents;Electricalengineering;Electronicengineering;Electronicequipmentandcomponents;Electronicinstruments;Inspection;Qualityassurance;Resistors;Sectionalspecification;Specification;Varistors
【摘要】:Applicabletosurgesuppressionvaristorsintendedtoprotectelectronicandothersensitiveequipmentfromsurges,operatingfromad.c.supply,orana.c.supplyhavingafrequencynotgreaterthan400Hz.
【中国标准分类号】:L00;L15
【国际标准分类号】:31_040_20
【页数】:20P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodforDeterminationofTraceThiopheneinRefinedBenzenebyGasChromatographyandSulfurSelectiveDetection
【原文标准名称】:气相色谱法和硫选择性检测法测定精炼苯中的痕量噻吩的标准试验方法
【标准号】:ASTMD7011-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【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】:D16.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atomicemissiondetector;benzene;chemiluminescencedetector;gaschromatography;pulsedflamephotometricdetector;sulfur;thiophene;Sulfurselectivedetection;Thiophenecontent;Gaschromatography(GC);Refinedbenzene
【摘要】:Accurategaschromatographicdeterminationoftracelevelsofthiopheneinbenzeneinvolvesspecialanalyticalproblemsbecauseofthedifficultiesoftracelevelanalysis.Theseproblemsarisefromthelowconcentrationlevelsthatneedtobemeasured,thetypeofcolumnanddetectorneededforanalysis,andthepotentialinterferencefromthebenzenematrix.ThistestmethodwasfoundapplicablefordeterminingthiopheneinrefinedbenzeneconformingtothespecificationsdescribedinSpecificationsD2359,D4734,andD5871andmaybeapplicabletowardothergradesofbenzeneiftheuserhastakenthenecessaryprecautionsasdescribedinthetext.ThistestmethodwasdevelopedasanalternativetechniquetoTestMethodsD1685andD4735.1.1Thistestmethodcoversthedeterminationofthiopheneinrefinedbenzeneusinggaschromatographyandsulfurselectivedetection.Thetestmethodisapplicabletothedeterminationofthiopheneatlevelsof0.02to2.18mgthiopheneperkginbenzene(mg/kg)ontheAED,0.03to1.87mg/kgonthePFPD,and0.03to2.11mg/kgontheSCD.Therangeofthetestmethodmaybeextendedbymodifyingthesampleinjectionvolume,splitratios,calibrationrange,orsampledilutionwiththiophene-freesolvent.1.2Indeterminingtheconformanceofthetestresultsusingthismethodtoapplicablespecifications,resultsshallberoundedoffinaccordancewiththerounding-offmethodofPracticeE29.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:G16
【国际标准分类号】:75_160_20
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:Specificationandqualificationofweldingproceduresformetallicmaterials-Weldingproceduretest-Part2:Arcweldingofaluminiumanditsalloys;TechnicalCorrigendum1
【原文标准名称】:金属材料焊接过程的规范和鉴定.焊接过程试验.第2部分:铝及其合金的电弧焊接.技术勘误1
【标准号】:ISO15614-2TechnicalCorrigendum1-2005
【标准状态】:现行
【国别】:国际
【发布日期】:2005-09
【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/TC44
【标准类型】:()
【标准水平】:()
【中文主题词】:材料;金属焊接;铸造材料;电弧焊接;可锻材料;铝;破坏试验;焊接程序规范;认可;熔焊;铝合金;定义;规范(验收);试验;试样;焊接工程;焊接;无损检验;焊接工艺;认可试验;金属材料;训练;可锻合金
【英文主题词】:Aluminium;Aluminiumalloys;Approval;Approvaltests;Arcwelding;Castmaterials;Definitions;Destructivetesting;Fusionwelding;Malleablematerials;Materials;Metalwelding;Metallicmaterials;Non-destructivetesting;Specification(approval);Testspecimens;Testing;Trainings;Welding;Weldingengineering;Weldingprocedurespecification;Weldingprocesses;Wroughtalloys
【摘要】:ThisisTechnicalCorrigendum1toISO15614-2-2005(Specificationandqualificationofweldingproceduresformetallicmaterials—Weldingproceduretest—Part2:Arcweldingofaluminiumanditsalloys)
【中国标准分类号】:J33
【国际标准分类号】:25_160_10
【页数】:1P.;A4
【正文语种】:英语
