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BS EN 12721-2009 家具.湿热表面抗性的评估

作者:标准资料网 时间:2024-05-18 02:42:15  浏览:8919   来源:标准资料网
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【英文标准名称】:Furniture-Assessmentofsurfaceresistancetowetheat
【原文标准名称】:家具.湿热表面抗性的评估
【标准号】:BSEN12721-2009
【标准状态】:现行
【国别】:英国
【发布日期】:2009-03-31
【实施或试行日期】:2009-03-31
【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】:气候试验;湿热试验;定义;耐久性;定义(术语);评定;评估;精整;瓶口;家具;热学;热阻;潮气;抗湿;;塑料;温湿度预调节;保护层;防护覆层;耐力;应力;表面检验;表面绝缘电阻;表面处理;表面;试验设备;试验报告;试验温度;试验;测试;痕量元素分析;热效应;热阻;热稳定性;热试验;处理;表面处理
【英文主题词】:Climatictests;Damp-heattests;Definitions;Evaluations;Finishes;Furniture;Heat;Heatresistance;Moisture;Moistureresistance;Physicalresistance;Plastics;Preconditioning;Protectivecoat;Protectivecoatings;Resistance;Stress;Surfaceinspections;Surfaceinsulationresistance;Surfacetreatment;Surfaces;Testequipment;Testreports;Testtemperatures;Testing;Thermaleffect;Thermalresistance;Thermalstability;Thermaltesting;Treatment;Treatmentsofsurfaces
【摘要】:ThisEuropeanstandardspecifiesamethodfortheassessmentoftheresistancetowetheatofallrigidfurnituresurfacesregardlessofmaterials.Itdoesnotapplytoleatherandtextilesurfaces.Thetestisintendedtobecarriedoutonapartofthefinishedfurniture,butcanbecarriedoutontestpanelsofthesamematerial,finishedinanidenticalmannertothefinishedproduct,andofasizesufficienttomeettherequirementsofthetest.Thetestshouldbecarriedoutonunusedsurfaces.AnnexA(informative)describesadirectlightsource.
【中国标准分类号】:Y80
【国际标准分类号】:97_140
【页数】:16P.;A4
【正文语种】:英语


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【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


基本信息
标准名称:出口手持式电动工具安全检验规程
英文名称:Export hand-held electric tool Rules for the inspection of safety
中标分类: 电工 >> 电气设备与器具 >> 电动工具
替代情况:被SN/T 1657.1-2007替代
发布日期:1997-12-22
实施日期:1998-05-01
首发日期:
作废日期:2008-03-01
起草单位:中华人民共和国国家进出口商品检验局
出版日期:
页数:5页
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所属分类: 电工 电气设备与器具 电动工具

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