EN ISO 13904-2005 动物饲料.色氨酸含量的测定
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来源:标准资料网
【英文标准名称】:Animalfeedingstuffs-Determinationoftryptophancontent(ISO13904:2005);GermanversionENISO13904:2005
【原文标准名称】:动物饲料.色氨酸含量的测定
【标准号】:ENISO13904-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-08
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:含量测定;动物;研究方法;农产品;数学计算;抽样方法;饲料;色氨酸;农业;高效液相色谱法;液相色谱法;化学分析和试验;调查;高效液相色谱分析法;混合物;实验室试验;食品
【英文主题词】:Agriculturalproducts;Agriculture;Animalfeed;Animals;Chemicalanalysisandtesting;Determinationofcontent;Foods;Highperformanceliquidchromatography;HPLC;Investigations;Laboratorytesting;Liquidchromatography;Mathematicalcalculations;Mixedprovenders;Mixtures;Researchmethods;Samplingmethods;Tryptophane
【摘要】:
【中国标准分类号】:B46
【国际标准分类号】:65_120
【页数】:16P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 一般排水量船模双桨自航试验方法 |
| 英文名称： | Procedure of self-Propulsion Tests for Twin-Screw Displacement Ships |
| 中标分类： |
船舶 >>
船舶总体 >>
船舶理论与船模试验 |
| ICS分类： |
造船和海上建筑物 >>
船舶和海上建筑物综合 >>
造船和海上建筑通用标准
|
| 替代情况： | 被CB/Z 239-2008代替 |
| 发布日期： | 1987-01-01 |
| 实施日期： | 1986-06-27 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2008-10-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 14页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 船舶 船舶总体 船舶理论与船模试验 造船和海上建筑物 船舶和海上建筑物综合 造船和海上建筑通用标准
【英文标准名称】:StandardTestMethodforTensileStrengthofMonolithicAdvancedCeramicsatAmbientTemperatures
【原文标准名称】:室温下单片高级陶瓷抗拉强度的标准试验方法
【标准号】:ASTMC1273-2005(2010)
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:C28.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:高级陶瓷;百分比弯曲度;抗拉强度;抗拉试验
【英文主题词】:advancedceramic;percentbending;tensilestrength;tensiletesting
【摘要】:Thistestmethodmaybeusedformaterialdevelopment,materialcomparison,qualityassurance,characterization,anddesigndatageneration.Highstrength,monolithicadvancedceramicmaterialsgenerallycharacterizedbysmallgrainsizes(x003C;50x03BC;m)andbulkdensitiesnearthetheoreticaldensityarecandidatesforload-bearingstructuralapplicationsrequiringhighdegreesofwearandcorrosionresistance,andhightemperaturestrength.Althoughflexuraltestmethodsarecommonlyusedtoevaluatestrengthofadvancedceramics,thenon-uniformstressdistributionoftheflexuretestspecimenlimitsthevolumeofmaterialsubjectedtothemaximumappliedstressatfracture.Uniaxially-loadedtensilestrengthtestsprovideinformationonstrength-limitingflawsfromagreatervolumeofuniformlystressedmaterial.Althoughthevolumeorsurfaceareaofmaterialsubjectedtoauniformtensilestressforasingleuniaxially-loadedtensiletestmaybeseveraltimesthatofasingleflexuretestspecimen,theneedtotestastatisticallysignificantnumberoftensiletestspecimensisnotobviated.Therefore,becauseoftheprobabilisticstrengthdistributionsofbrittlematerialssuchasadvancedceramics,asufficientnumberoftestspecimensateachtestingconditionisrequiredforstatisticalanalysisandeventualdesign,withguidelinesforsufficientnumbersprovidedinthistestmethod.Notethatsize-scalingeffectsasdiscussedinPracticeC1239willaffectthestrengthvalues.Therefore,strengthsobtainedusingdifferentrecommendedtensiletestspecimenswithdifferentvolumesorsurfaceareasofmaterialinthegagesectionswillbedifferentduetothesesizedifferences.ResultingstrengthvaluescanbescaledtoaneffectivevolumeorsurfaceareaofunityasdiscussedinPracticeC1239.Tensiletestsprovideinformationonthestrengthanddeformationofmaterialsunderuniaxialtensilestresses.Uniformstressstatesarerequiredtoeffectivelyevaluateanynon-linearstress-strainbehaviorwhichmaydevelopastheresultoftestingmode,testingrate,processingoralloyingeffects,orenvironmentalinfluences.Theseeffectsmaybeconsequencesofstresscorrosionorsubcritical(slow)crackgrowthwhichcanbeminimizedbytestingatappropriatelyrapidratesasoutlinedinthistestmethod.Theresultsoftensiletestsoftestspecimensfabricatedtostandardizeddimensionsfromaparticularmaterialorselectedportions,orboth,ofapartmaynottotallyrepresentthestrengthanddeformationpropertiesoftheentire,full-sizeendproductoritsin-servicebehaviorindifferentenvironments.Forqualitycontrolpurposes,resultsderivedfromstandardizedtensiletestspecimenscanbeconsideredtobeindicativeoftheresponseofthematerialfromwhichtheyweretakenforgivenprimaryprocessingconditionsandpost-processingheattreatments.Thetensilestrengthofaceramicmaterialisdependentonbothitsinherentresistancetofractureandthepresenceofflaws.Analysisoffracturesurfacesandfractography,thoughbeyondthescopeofthistestmethod,ishighlyrecommendedforallpurposes,especiallyfordesigndata.1.1Thistestmethodcoversthedeterminationoftensilestrengthunderuniaxialloadingofmonolithicadvancedceramicsatambienttemperatures.Thistestmethodaddresses,butisnotrestrictedto,varioussuggestedtestspecimengeometriesaslistedintheappendix.Inaddition,testspecimenfabricationmethods,testingmodes(force,displacement,orstraincontrol),testingrates(forcerate,stressrate,displacementrate,ors......
【中国标准分类号】:
【国际标准分类号】:81_060_99
【页数】:18P.;A4
【正文语种】:
