ANSI/ASTM D6352-2004 用气相色谱法测定174℃-700℃沸腾范围内石油馏份的沸腾范围分布的试验方法

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下一篇: ANSI/ASTM D6751-2004 蒸馏燃料用生物柴油燃料(B100)混合材料的临时规范

【英文标准名称】:Machinesforthemanufactureofconstructionalproductsfromconcreteandcalcium-silicate-Safety-Part5-2:Pipemakingmachinesmanufacturinginthehorizontalaxis;GermanversionEN12629-5-2:2003+A1:2010
【原文标准名称】:生产混凝土和硅酸盐建筑产品用机器.安全性.第5-2部分:水平轴的管道制造机械.德文版本EN12629-5-2-2003+A1-2010
【标准号】:EN12629-5-2-2010
【标准状态】:现行
【国别】:
【发布日期】:2011-02
【实施或试行日期】:2011-02-01
【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】:硅酸盐砖;混凝土管;铰接式接头;混凝土;建筑;装配产品;定义(术语);设计;危害;水平的;机械;维修;机械工程;管制造;生产;危险防护;保护措施;屋面瓦;安全性;机械安全性;规范(验收)
【英文主题词】:Calciumsilicatebricks;Concretepipes;Concreteproducts;Concretes;Construction;Constructionalproducts;Definitions;Design;Hazards;Horizontal;Machines;Maintenance;Mechanicalengineering;Pipemanufacture;Production;Protectionagainstdanger;Protectivemeasures;Roofingtiles;Safety;Safetyofmachinery;Specification(approval)
【摘要】:
【中国标准分类号】:Q92
【国际标准分类号】:91_220
【页数】:17P;A4
【正文语种】:英语


【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