DIN 45921 T.209-1992 电子元件质量评定协调体系.分规范:高负荷固定电阻.在陶瓷盒中带单边引线接头的线绕固定电阻.评定级"M"(CECC40202-002)
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【英文标准名称】:Harmonizedsystemofqualityassessmentforelectroniccomponents;detailspecificationforfixedpowerresistors,wirewound,inceramiccase,withsingleendedleads;assessmentlevel"M"
【原文标准名称】:电子元件质量评定协调体系.分规范:高负荷固定电阻.在陶瓷盒中带单边引线接头的线绕固定电阻.评定级"M"(CECC40202-002)
【标准号】:DIN45921T.209-1992
【标准状态】:作废
【国别】:
【发布日期】:
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【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】:StandardGuideforDeterminationofThicknessofPlasticFilmTestSpecimens
【原文标准名称】:塑料薄膜试样的厚度测定的标准指南
【标准号】:ASTMD6988-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D20.19
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:dialgauge;dimensions;film;plastics;thickness;Dialgagemethod;Dimensions--plasticmaterials/applications;Plasticsheetandfilm;Thickness--plastics
【摘要】:Thisguideisintendedtoproviderecommendationsandsuggestedgoodpracticestodetermineprecisedimensionswhennecessaryforthecalculationofpropertiesexpressedinphysicalunits.Itisnotintendedtoreplacepracticalthicknessmeasurementsbasedoncommercialportabletools,norisitimpliedthatthicknessmeasurementsmadebytheprocedureswillagreeexactly.1.1Thisguidecoversthedeterminationofthethicknessofplasticfilmswherethethicknessisuseddirectlyindeterminingtheresultsoftestsforvariousproperties.Usethispracticeexceptasotherwiserequiredinmaterialspecificationsorinapplicableteststandards.Note18212;Filmsaredefinedashavingthicknessesx2264;0.250mm[x2264;0.010in.].Note28212;Alternativemethodsareacceptableiftheymeettherequirementsofmeasurementprecisionasnotedinthisguide.Note38212;Thisguideisnotintendedtoaddressthesamplingtechniquesorthemeasurementoffilmthicknessforthecommercialclassificationofcommercialproductsorforqualitycontrolpurposes.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatoryrequirementspriortouse.Note48212;ThisstandardandISO4593addressthesamesubjectmatterbutdifferintechnicalcontent.
【中国标准分类号】:G33
【国际标准分类号】:83_140_10
【页数】:7P.;A4
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforChemical,MassSpectrometric,andSpectrochemicalAnalysisofNuclear-GradeAluminumOxideandAluminumOxide-BoronCarbideCompositePellets
【原文标准名称】:核纯级氧化铝和氧化铝-碳化硼复合丸状材料化学、质谱和光谱化学分析的标准试验方法
【标准号】:ASTMC809-1994(2007)
【标准状态】:现行
【国别】:
【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】:C26.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:铝;氧化铝;分析;硼;碳化物;化学分析和测试;核能;核技术;丸状材料;光谱化学分析;光谱测定法
【英文主题词】:alumina/boroncarbidepellets;aluminapellets;A12O3;A12O3/B4C;analyticalmethods
【摘要】:Aluminumoxidepelletsareusedinareactorcoreasfillerorspacerswithinfuel,burnablepoison,orcontrolrods.Inordertobesuitableforthispurpose,thematerialmustmeetcertaincriteriaforimpuritycontent.ThesetestmethodsaredesignedtoshowwhetherornotagivenmaterialmeetsthespecificationsfortheseitemsasdescribedinSpecificationC785.3.1.1Impuritycontentisdeterminedtoensurethatthemaximumconcentrationlimitofcertainimpurityelementsisnotexceeded.Aluminumoxide-boroncarbidecompositepelletsareusedinareactorcoreasacomponentinneutronabsorberrods.Inordertobesuitableforthispurpose,thematerialmustmeetcertaincriteriaforboroncontent,isotopiccomposition,andimpuritycontentasdescribedinSpecificationC784.3.2.1Thematerialisassayedforborontodeterminewhethertheboroncontentisasspecifiedbythepurchaser.3.2.2Determinationoftheisotopiccontentoftheboronismadetoestablishwhetherthe10Bconcentrationisincompliancewiththepurchaserrsquo;specifications.3.2.3Impuritycontentisdeterminedtoensurethatthemaximumconcentrationlimitofcertainimpurityelementsisnotexceeded.1.1Thesetestmethodscoverproceduresforthechemical,massspectrometric,andspectrochemicalanalysisofnuclear-gradealuminumoxideandaluminumoxide-boroncarbidecompositepelletstodeterminecompliancewithspecifications.1.2Theanalyticalproceduresappearinthefollowingorder:1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.(Forspecificprecautionarystatements,seeSection5.)
【中国标准分类号】:F46
【国际标准分类号】:27_120_30
【页数】:6P.;A4
【正文语种】:
