SN/T 0439-1995 出口盐渍裙带菜检验规程

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基本信息
标准名称:出口盐渍裙带菜检验规程
英文名称:Rule of inspection of salted undaria for export
中标分类: 食品 >> 食品加工与制品 >> 水产品加工与制品
发布部门:中华人民共和国国家进出口商品检验局
发布日期:1995-09-20
实施日期:1996-01-01
首发日期:1900-01-01
作废日期:1900-01-01
主管部门:中华人民共和国国家进出口商品检验局
提出单位:中华人民共和国国家进出口商品检验局
归口单位:中华人民共和国国家进出口商品检验局
起草单位:中华人民共和国山东进出口商品检验局
起草人:刘善文、孙勇、张勤
出版日期:1996-01-01
页数:3页
适用范围

本标准规定了出口盐演裙带菜的检验场所、设备、抽样及包装与标志、重量、品质、规格、杂质的检验方法。
本标准适用于以裙带菜(undaria)为原料而加工的出口盐演裙带菜检验。

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引用标准

SN /T 0 376 出口水产品检验抽样方法

所属分类: 食品 食品加工与制品 水产品加工与制品
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Product Code:SAE AMS4725
Title:Wire, Copper-Beryllium Alloy 98cu 1.9be, Solution Heat Treated
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers one type of copper-beryllium alloy in the form of wire.【英文标准名称】:StandardTestMethodforTensionTestingofStructuralAlloysinLiquidHelium
【原文标准名称】:液氦中结构合金抗拉试验的标准试验方法
【标准号】:ASTME1450-2009
【标准状态】:现行
【国别】:美国
【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】:E28.04
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adiabaticheating;cryogenicproperties(ofmaterials);cryostats;discontinuousyielding;liquidhelium;lowtemperaturetests;mechanicalproperties(ofmaterials);tensileproperties;tensiontest
【摘要】:Tensiontestsprovideinformationonthestrengthandductilityofmaterialsunderuniaxialtensilestresses.Thisinformationmaybeusefulforalloydevelopment,comparisonandselectionofmaterials,andqualitycontrol.Undercertaincircumstances,theinformationmayalsobeusefulfordesign.Theforce-timeandforce-extensionrecordsforalloystestedinliquidheliumusingdisplacementcontrolareserrated(1).Serrationsareformedbyrepeatedburstsofunstableplasticflowandarrests.Theunstableplasticflow(discontinuousyielding)isafree-runningprocessoccurringinlocalizedregionsofthereducedsectionathigherthannominalratesofstrainwithinternalspecimenheating.Examplesofserratedstress-straincurvesforatypicalausteniticstainlesssteelwithdiscontinuousyieldingareshowninFig.2.Aconstantspecimentemperaturecannotbemaintainedatalltimesduringtestsinliquidhelium.Thespecimentemperatureatlocalregionsinthereducedsectionrisestemporarilyabove4Kduringeachdiscontinuousyieldingevent(seeFig.2),owingtoadiabaticheat.Thenumberofeventsandthemagnitudeoftheassociateddropsinmagnitudeofforceareafunctionofthematerialcompositionandotherfactorssuchasspecimensizeandtestspeed.Typically,alteringthemechanicaltestvariablescanmodifybutnoteliminatethediscontinuousyielding(2-4).Therefore,tensilepropertymeasurementsofalloysinliquidhelium(especiallytensilestrength,elongation,andreductionofarea)lacktheusualsignificanceofpropertymeasurementsatroomtemperaturewheredeformationismorenearlyisothermalanddiscontinuousyieldingtypicallydoesnotoccur.Thestress-strainresponseofamaterialtestedinliquidheliumdependsonwhetherforcecontrolordisplacementcontrolisused(3).Crossheaddisplacementcontrolisspecifiedinthisstandardsincethegoalismaterialcharacterizationbyconventionalmethods.Thepossibilityofadifferentandlessfavorablematerialresponsemustbetakenintoaccountwhendataareusedfordesigninactualapplicationssubjecttoforce-controlledconditions.FIG.2TypicalEngineeringStress-StrainCurvesandSpecimenTemperatureHistories,atFourDifferentNominalStrainRates,forAISI304LStainlessSteelTestedinLiquidHelium(4)1.1Thistestmethoddescribesproceduresforthetensiontestingofstructuralalloysinliquidhelium.TheformatissimilartothatofotherASTMtensionteststandards,butthecontentsincludemodificationsforcryogenictestingwhichrequiresspecialapparatus,smallerspecimens,andconcernforserratedyielding,adiabaticheating,andstrain-rateeffects.1.2Toconductatensiontestbythisstandard,thespecimeninacryostatisfullysubmergedinnormalliquidhelium(HeI)andtestedusingcrossheaddisplacementcontrolatanominalstrainrateof10x2212;3sx2212;1orless.Testsusingforcecontrolorhighstrainratesarenotconsidered.1.3Thisstandardspecifiesmethodsforthemeasurementofyieldstrength,tensilestrength,elongation,andreductionofarea.ThedeterminationoftheelasticmodulusistreatedinTestMethodE111.Note18212;Theboilingpointofnormalliquidhelium(HeI)atsealevelis4.2K(x2212;269x00B0;Corx2212;452.1x00B0;For7.6x00B0;R).Itdecreaseswit......
【中国标准分类号】:H22
【国际标准分类号】:
【页数】:9P.;A4
【正文语种】:英语