DIN EN 27785-2-1994 牙科学.牙科手持式器械.第2部分:平角和啮合角手持式器械

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【英文标准名称】:Dentalhandpieces;part2:straightandgearedanglehandpieces(ISO7785-2:1991);GermanversionEN27785-2:1993
【原文标准名称】:牙科学.牙科手持式器械.第2部分:平角和啮合角手持式器械
【标准号】:DINEN27785-2-1994
【标准状态】:作废
【国别】:德国
【发布日期】:1994-02
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:动力驱动;作标记;牙科设备;牙钻手柄;牙科学;规范(批准);试验;规范
【英文主题词】:specification;dentistry;specification(approval);powerdrives;marking;dentalequipment;dentalhandpieces;testing
【摘要】:
【中国标准分类号】:C33
【国际标准分类号】:11_060_20
【页数】:6P;A4
【正文语种】:德语


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基本信息
标准名称:工程机械 燃油箱清洁度测定方法
中标分类: 工程建设 >> 施工机械设备 >> 建筑工程施工机械
替代情况:被JB/T 7157-2010代替
发布部门:天津工程机械研究所
发布日期:1993-11-21
实施日期:1994-03-01
首发日期:1900-01-01
作废日期:2010-07-01
归口单位:天津工程机械研究所
出版社:机械工业出版社
出版日期:2004-04-23
页数:4 页
批文号:机械科[1993]629号
适用范围

本标准规定了用重量法测定工程机械燃油箱清洁度的方法,包括测定对象、准备工作、杂质的收集、杂质的测定、杂质分析及检测报告等。 本标准适用于以内燃机为动力的工程机械燃油箱清洁度的测定。

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所属分类: 工程建设 施工机械设备 建筑工程施工机械
【英文标准名称】:StandardPracticeforManualSamplingofLiquidFuels,AssociatedMaterialsandFuelSystemComponentsforMicrobiologicalTesting
【原文标准名称】:对液体燃料,相关材料和燃油系统部件手工取样进行微生物测试的标准实施规程
【标准号】:ASTMD7464-2008
【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】:D02.14
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:bailersampling;bottom-water;componentsampling;coresampling;filtrationmediasampling;fuel;microbiology;samplechainofcustody;samplehandling;samplelabeling;sampling;tapsampling;thiefsampling
【摘要】:Representativesamplesoffuelproductsandassociatedsubstancesarerequiredforthedeterminationofmicrobialcontaminationinfuelsandfuelsystemsinordertoaccuratelyassessthebiodeteriorationriskposedtothefuel,fuel-systemcomponentsorboth.Uncontrolledmicrobialcontaminationcanaffectfuelspecificationpropertiesadversely.AsdiscussedinGuideD6469,microbescancauseavarietyofoperationalproblems,includingfilterpluggingandmicrobiallyinfluencedcorrosion(MIC),thelatterofwhichcausesvalvefailure,tankandpipelinefailure.Thesepracticesformicrobiologicalsamplingdecreasetheriskofcontaminatingsampleswithextraneousmicrobes,therebyincreasingtheprobabilitythattheoriginalmicrobialpopulationinthesampledoesnotchangesignificantlybetweenthetimeofsamplingandthetimeoftesting.Theobjectiveofsamplingformicrobiologicaltestingistoobtainarepresentativesamplethatislikelytoreflectthedegreeandnatureofmicrobialcontaminationinthesystemfromwhichthesampleiscollected.Manual47addressestherationalforanddesignofmicrobialcontaminationprograms.Thephysical,chemicalandmicrobiologicalpropertyteststobeperformedonasamplewilldictatethesamplingprocedures,thesamplequantityrequired,andmanyofthesamplehandlingrequirements.Fuelsystemsarenotnormallydesignedtofacilitateoptimalmicrobiologicalsampling.Consequently,theselectionofsamplingdeviceandsamplesourcereflectcompromisesbetweenaccessibilityandsuitabilityformeetingthesamplecollectionobjective.TheguidanceprovidedinPracticeD4057generallyappliestothispracticeaswell.Consequently,thispracticewilladdressonlythoseproceduresthatapplyuniquelytomicrobiologicalsampling.1.1Thispracticecoversaspectsofsampledevicepreparationandsamplehandlingthatpreventsamplesfrombecomingcontaminatedwithmicroorganismsnotoriginallycontainedwithinthesample.1.2Thispracticealsocoverssamplehandlingconsiderationsthatreflecttheperishabilityofsamplescollectedformicrobiologicaltesting.1.3ThispracticesupplementsPracticeD4057byprovidingguidancespecifictothemanualsamplingoffuelswhensamplesaretobetestedformicrobialcontamination.1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:9P.;A4
【正文语种】:英语