【英文标准名称】:Aerospaceseries-Rivets,solid,universalhead,inaluminiumalloy2117,inchbasedseries;GermanversionEN2144:1994
【原文标准名称】:航空航天系列.英制系列铝合金2117通用头实心铆钉;德文版本EN2144:1994
【标准号】:EN2144-1994
【标准状态】:现行
【国别】:
【发布日期】:1994-11
【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】:全铆钉;航空航天运输;铝合金;铆钉;航空运输;圆头铆钉;名称与符号;作标记;尺寸;突出头;规范(批准);航天运输;紧固件
【英文主题词】:Aerospacetransport;Airtransport;Aluminiumalloys;Designations;Dimensions;Fasteners;Fullrivets;Marking;Protrudingheads;Rivets;Round-headrivets;Spacetransport;Specification(approval)
【摘要】:
【中国标准分类号】:V20
【国际标准分类号】:49_030_60
【页数】:7P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 火力发电厂水汽分析方法 第26部分:亚铁的测定(啉菲啰啉分光光度法) |
| 英文名称： | Analytical methods of steam and water in power plants Part 26: Determination of ferrite (Spectrometric method using bathophenanthorline) |
| 中标分类： |
能源、核技术 >>
电力 >>
电力试验技术 |
| ICS分类： |
能源和热传导工程 >>
电站综合
|
| 替代情况： | DL/T 502-1992 |
| 发布日期： | 2006-05-06 |
| 实施日期： | 2006-10-01 |
| 首发日期： | |
| 作废日期： | |
| 归口单位： | 电力行业电厂化学标准化技术委员会 |
| 起草单位： | 西安热工研究院有限公司 |
| 出版日期： | |
| 页数： | 7页 |
适用范围
DL/T502《火力发电厂水汽分析方法》分为35个部分，全面、详细地对火力发电厂水汽分析方法进行了规范。
前言
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目录
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引用标准
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所属分类： 能源 核技术 电力 电力试验技术 能源和热传导工程 电站综合
【英文标准名称】:StandardTestMethodforMeasurementofAdenosineTriphosphateinWater-MiscibleMetalworkingFluids
【原文标准名称】:测定水溶性金属加工液中三磷酸腺苷的标准试验方法
【标准号】:ASTME2694-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:E34.50
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:adenosinetriphosphate;ATP;bacteria;bioburden;biodeterioration;biomass;fungi;metalworking;microbialcontamination;microbiology;microorganisms
【摘要】:ThismethodmeasurestheconcentrationofATPpresentinthesample.ATPisaconstituentofalllivingcells,includingbacteriaandfungi.Consequently,thepresenceofATPisanindicatoroftotalmicrobialcontaminationinmetalworkingfluids.ATPisnotassociatedwithmatterofnon-biologicalorigin.MethodD4012validatedATPasasurrogateforculturablebacterialdata(GuideE1326).ThismethoddiffersfromMethodD4012inthatiteliminatesinterferencesthathavehistoricallyrenderedATPtestingunusablewithcomplexorganicfluidssuchasMWF.TheATPtestprovidesrapidtestresultsthatreflectthetotalbioburdeninthesample.Ittherebyreducesthedelaybetweentestinitiationanddatacapture,fromthe36hto48h(orlonger)requiredforculturablecoloniestobecomevisible,toapproximatelyfiveminutes.AlthoughATPdatacovarystronglywithculturedatainMWF,differentfactorsaffectATPconcentrationthanthosethataffectculturability.Culturabilityisaffectedprimarilybytheabilityofcapturedmicrobestoproliferateonthegrowthmediumprovided,underspecificgrowthconditions.Ithavebeenestimatedthatlessthan1%ofthespeciespresentinanenvironmentalsamplewillformcoloniesunderanygivensetofgrowthconditions.ATPconcentrationisaffectedby:themicrobialspeciespresent,thephysiologicalstatesofthosespecies,andthetotalbioburden(SeeAppendixX1).OneexampleofthespecieseffectisthattheamountofATPpercellissubstantiallygreaterforfungithanbacteria.Withinaspecies,cellsthataremoremetabolicallyactivewillhavemoreATPpercellthandormantcells.Thegreaterthetotalbioburden,thegreatertheATPconcentrationinasample.Thepossibilityexiststhattherinsestep(11.15)maynoteliminateallchemicalsubstancesthatcaninterferewiththebioluminescencereaction(11.39).ThepresenceofanysuchinterferencescanbeevaluatedbyperformingastandardadditiontestseriesasdescribedinAppendixX3.Anyimpactofinterferingchemicalswillbereflectedasbiasrelativetodataobtainedfromfluidthatdoesnotcontaininterferingchemicals.1.1Themethodprovidesaprotocolforcapturing,extractingandquantifyingtheadenosinetriphosphate(ATP)contentassociatedwithmicroorganismsfoundinwater-misciblemetalworkingfluids(MWF).1.2TheATPismeasuredusingabioluminescenceenzymeassay,wherebylightisgeneratedinamountsproportionaltotheconcentrationofATPinthesamples.Thelightisproducedandmeasuredquantitativelyasrelativelightunits(RLU)whichareconvertedbycomparisonwithanATPstandardandcomputationtopgATP/mL.1.3Thismethodisequallysuitableforuseinthelaboratoryorfield.1.4ThemethoddetectsATPconcentrationsintherangeof4.0pgATP/mLto400,000pgATP/mL.1.5Providinginterferencescanbeovercome,bioluminescenceisareliableandprovenmethodforqualifyingandquantifyingATP.ThemethoddoesnotdifferentiatebetweenATPfromdifferentsources,forexample,fromdifferenttypesofmicroorganisms,suchasbacteriaandfungi.1.6ThevaluesstatedinSIaretoberegardedasstandard.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E39
【国际标准分类号】:75_100
【页数】:7P.;A4
【正文语种】:英语