【英文标准名称】:Hydraulicfluidpower-Filterelements-Determinationofresistancetoflowfatigueusingparticulatecontaminant
【原文标准名称】:液压传动系统.滤波器元件.用微粒污染物测定抗流动疲劳性
【标准号】:BSISO3724-2007
【标准状态】:现行
【国别】:英国
【发布日期】:2007-09-28
【实施或试行日期】:2007-09-28
【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】:周期性荷载;定义;差压;疲劳;疲劳测试;疲劳试验;滤波器元件;过滤器;流动;流体过滤器;流体技术;射流技术;液压传动系统;液压装置;机械工程;机械测试;压力梯度;应变;测试;测试条件;验证
【英文主题词】:Cyclicloading;Definitions;Differentialpressures;Fatigue;Fatiguetesting;Fatiguetests;Filterelements;Filters;Flows;Fluidfilters;Fluidtechnology;Fluidics;Hydraulictransmissionsystems;Hydraulics;Mechanicalengineering;Mechanicaltesting;Pressuregradients;Strain;Testing;Testingconditions;Verification
【摘要】:ThisInternationalStandardspecifiesamethodfordeterminingtheresistanceofahydraulicfilterelementtoflowfatigueafterithasbeenloadedwithparticulatecontaminantandsubjectedtoauniformvaryingflowrateandpredeterminedmaximumelementdifferentialpressure.Itestablishesauniformmethodforverifyingtheabilityofafilterelementtowithstandtheflexingcausedbycyclicdifferentialpressuresinducedbyavariableflowrate.NOTEAnnexAsummarizesdatafromaroundrobintestperformedtoverifytheprocedurespecifiedinthisInternationalStandard.
【中国标准分类号】:J20
【国际标准分类号】:23_100_60
【页数】:22P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 稳压型负温度系数热敏电阻器总技术条件 |
| 英文名称： | Generic specification for negative temperature coefficient thermistors used as voltage regulators |
| 中标分类： |
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技术管理 |
| 发布日期： | 1980-02-04 |
| 实施日期： | 1980-10-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 2010-02-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 6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： 通信 广播 通信 广播综合 技术管理
【英文标准名称】:StandardTestMethodsforEvaluationofInactivatorsofAntimicrobialAgents
【原文标准名称】:评估抗菌剂灭活的标准试验方法
【标准号】:ASTME1054-2008
【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】:E35.15
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:antimicrobialagents;antimicrobialeffectivenessevaluations;inactivation;neutralization;neutralizertoxicity;Antimicrobialformulations/testing;Effectivenesstesting;Inactivators;Microbialenvironments;Neutralization;Neutralizertoxicity;Quenc
【摘要】:Theeffectivenessofantimicrobialagentsincorporatedintodisinfectants,sanitizers,andantisepticsismeasuredbytheirabilitytokillmicroorganismswithinaspecifiedcontacttime.Hence,accuratedeterminationofantimicrobialeffectivenessrequirescompleteandimmediateinactivation(neutralization)oftheantimicrobialagent.Inefficientorincompleteneutralizationwillpermitkillingorinactivationofmicroorganismstocontinuebeyondtheexperimentalexposuretime,resultinginanoverestimationofantimicrobialactivity.Theneutralizationmethodscommonlyusedinantimicrobialeffectivenessevaluationsarechemicalinactivation,dilution,andfiltration.Allcriticalparametersofanantimicrobialeffectivenessevaluationx2014;forexample,media,equipment,microorganism(s),andtemperatureofsolutionsx2014;mustbeduplicatedwhenevaluatinganeutralizationproceduretobeused.Theneutralizationevaluationmustincludeatleastthreereplications(fivereplicationsinSection9)sothatastatisticalanalysisoftherecoverydatacanbeperformed.Thenumberofreplicatesusedintheevaluationdependsonthestatisticalsignificancerequiredfortheexpectedresults,thevariabilityencounteredinthedata,andtherelativeeffectivenessoftheneutralizationprocedure.Alimitationoftheseevaluationproceduresisthattheyusemicroorganismsthathavenotbeenexposedtoanantimicrobialagent.Underexperimentalconditions,cellsexposedtoneutralizationproceduresarelikelytobedamagedtodifferentdegreesbytheantimicrobialagent.Sublethalinjurymaybeafactorinrecovery,andtheroleoftheneutralizationprocedureinrecoveryofinjuredorganismsshouldbeexamined.Thismethodisnotintendedtoassessinjuredorganismrecovery.Note38212;Ideally,allmicroorganismsusedintheantimicrobialeffectivenessevaluationshouldbetestedintheneutralizationassay.However,representativeorganismsmaybeselectedfortesting,asjudgedappropriatebytheinvestigator.Theinvestigatoriscautionedthatfailuretoidentifyneutralizerefficacyandtoxicityforallmicroorganismscouldresultinexaggeratedmicrobialreductionsinanantimicrobialeffectivenessevaluation.Also,forastudytestingmultipleantimicrobialformulations,andinwhichsampleswillcontainmultiplespeciesofmicroorganisms(forexample,skinflora)thatareexposedtotheformulations,asingleprocedureand/orcombinationofagentssuitableforneutralizingtheantimicrobialactivitiesofthemultipleformulationsmustbeusedfortesting.1.1Thesetestmethodsareusedtodeterminetheeffectivenessofproceduresandagentsforinactivating(neutralizing,quenching)themicrobicidalpropertiesofantimicrobialagents,andtoensurethatnocomponentsoftheneutralizingproceduresandagents,themselves,exertaninhibitoryeffectonmicroorganismstargetedforrecovery.Note18212;Knowledgeofmicrobiologicalandstatisticaltechniquesisrequiredfortheseprocedures.Thesemethodsarenotsuitablewhentestingthevirucidalactivityofmicrobicides(seeTestMethodE1482).1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C51
【国际标准分类号】:71_100_35
【页数】:7P.;A4
【正文语种】:英语