【英文标准名称】:StandardTestMethodforIsoasparticAcidinProteins:MethodfortheDeterminationofAsparagineDeamidationProducts
【原文标准名称】:蛋白质中异天门冬氨酸的标准试验方法:天门冬酰胺脱酰胺基制品的测定方法
【标准号】:ASTME1759-1995(2003)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:E48.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:蛋白质;生物化学;残留物;试验
【英文主题词】:deamidation;isoasparticacidresidue;proteindamage
【摘要】:Isoasparticacidresiduesaregeneratedduringincubationofproteinsunderawidevarietyofconditionsinaqueoussolution.Suchresiduesaregeneratedmostcommonlythroughthedeamidationofaspargineresiduesalthoughsomereportsofisoasparticacidformationthroughtherearrangementofasparticacidresidueshavebeenpublished.Thepresenceofsuchresiduescanindicatethattheproteincontainingsuchresidueshassuffereddamagethatmayaffectthebiologicalactivityoftheprotein.Theprecisecorrelationbetweenthelevelofisoasparticacidcontentandthebiologicalactivityoftheproteinneedstobedeterminedonacasebycasebasis.Thetestmeasuresthelevelofisoasparticacidcontentinaproteinsample.Thislevelwilloftenbecorrelatedwiththedegreetowhichtheproteinhassuffereddeamidationatasparagineresidues.Inaddition,isoasparticacidresiduescanariseonoccasionthroughtherearrangementofasparticacidresidues.Forthesereasons,thelevelofisoasparticacidresiduesinproteinscanbeusedasageneralindicationthattheproteinsamplehassufferedsomelevelofdamageandshouldnotbeinterpretedtoindicatethepreciselevelofdamagetoanyoneregionwithinaproteinwithoutfurthertesting.1.1Thistestmethodcoversthedeterminationofisoasparticacidresiduesinaproteinorpeptidesample.Thistestmethodisapplicableforthedeterminationofisoasparticacidresiduesinasampleintherangeof2.5-50956;mol/L.Higherconcentrationscanbedeterminedfollowingdilution.Thereportedlowerrangeisbasedonsingle-operatorprecision.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:A43
【国际标准分类号】:07_030;71_040_50
【页数】:4P.;A4
【正文语种】:
【英文标准名称】:Electromechanicalcontactorsforhouseholdandsimilarpurposes
【原文标准名称】:家用及类似用途机电式接触器
【标准号】:BSEN61095-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-05-31
【实施或试行日期】:2009-05-31
【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】:检验总量;特征;分类;接触器;定义;介质;介电性能;家用的;电器;家用电器;电气工程;电力设备;电磁兼容性;机电的;机电装置;电磁兼容性(EMC);能量消耗;家用(安装)设备;家用;冲击试验器;批注;安装;低电压;低压开关设备;作标记;产品信息;特性;继电器;遥控开关;规范(验收);开关设备;试验仪表;试验证明书;试验;计时开关
【英文主题词】:Amountofinspection;Characteristics;Classification;Contactors;Definitions;Dielectric;Dielectricproperties;Domestic;Electricappliances;Electrichouseholdappliances;Electricalengineering;Electricalinstallations;Electromagneticcompatibility;Electromechanical;Electromechanicaldevices;EMC;Energyconsumption;Houseinstallations;Householduse;Impacttesters;Inscription;Installations;Lowvoltage;Low-voltageswitchgear;Marking;Productinformation;Properties;Relays;Remotecontrolswitches;Specification(approval);Switchgear;Testapparatus;Testcertificates;Testing;Timeswitches
【摘要】:ThisInternationalStandardappliestoelectromechanicalairbreakcontactorsforhouseholdandsimilarpurposesprovidedwithmaincontactsintendedtobeconnectedtocircuitstheratedvoltageofwhichdoesnotexceed440Va.c.(betweenphases)withratedoperationalcurrentslessthanorequalto63AforutilizationcategoryAC-7aand32AforutilizationcategoriesAC-7bandAC-7c,andratedconditionalshort-circuitcurrentlessthanorequalto6kA.Thecontactorsdealtwithinthisstandardarenotnormallydesignedtointerruptshort-circuitcurrents.Therefore,suitableshort-circuitprotection(see9.3.4)shallformpartoftheinstallation.Thisstandarddoesnotapplyto–contactorscomplyingwithIEC60947-4-1;–semiconductorcontactors;–contactorsdesignedforspecialapplications;–auxiliarycontactsofcontactors.ThesearedealtwithinIEC60947-5-1.Thisstandardstates1)thecharacteristicsofcontactors.2)theconditionswithwhichcontactorsshallcomplywithreferenceto:a)theiroperationandbehaviour;b)theirdielectricproperties;c)thedegreesofprotectionprovidedbytheirenclosures,whereapplicable;d)theirconstruction;e)theirelectromagneticcompatibilitycharacteristics.3)thetestsintendedforconfirmingthattheseconditionshavebeenmet,andthemethodstobeadoptedforthesetests.4)thetestsequencesandthenumberofsamples.5)theinformationtobegivenwithcontactorsorinthemanufacturer'sliterature.
【中国标准分类号】:K31
【国际标准分类号】:29_120_99;29_130_20
【页数】:132P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 绝缘桥式起重机 技术条件 |
| 英文名称： | Specification for insulated overhead travelling cranes |
| 中标分类： |
机械 >>
通用机械与设备 >>
起重机械 |
| ICS分类： |
材料储运设备 >>
起重设备 >>
起重机
|
| 发布日期： | 1999-06-28 |
| 实施日期： | 2000-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 归口单位： | 全国起重机械标准化技术委员会 |
| 出版日期： | 1900-01-01 |
| 页数： | 9 页 |
| 批文号： | 国机管[1999]363号 |
适用范围
JB/T 8907-1999
前言
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目录
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引用标准
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所属分类： 机械 通用机械与设备 起重机械 材料储运设备 起重设备 起重机