JIS G1327-2-2010 硼铁化学分析方法.第2部分:碳含量的测定方法
作者:标准资料网 时间:2024-05-03 11:10:15 浏览:8628
来源:标准资料网
【英文标准名称】:Methodforchemicalanalysisofferroboron--Part2:Methodsfordeterminationofcarboncontent
【原文标准名称】:硼铁化学分析方法.第2部分:碳含量的测定方法
【标准号】:JISG1327-2-2010
【标准状态】:现行
【国别】:日本
【发布日期】:2010-01-20
【实施或试行日期】:
【发布单位】:日本工业标准调查会(JP-JISC)
【起草单位】:TechnicalCommitteeonIronandSteel
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:H11
【国际标准分类号】:77_100
【页数】:14P.;A4
【正文语种】:日语
【英文标准名称】:ElectromagneticcompatibilityandRadiospectrumMatters(ERM)-Narrow-banddirect-printingtelegraphequipmentforreceivingmeteorologicalornavigationalinformation(NAVTEX)-Part2:HarmonizedENcoveringtheessentialrequirementsofarticle3.2of
【原文标准名称】:电磁兼容性和无线电频谱事项(ERM).接收气象或导航信息(NAVTEX)窄带直接打印电报设备.第2部分:包括第3-2条基本要求的统一欧洲标准EN
【标准号】:DINEN300065-2-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-10
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:Communicationtechnology;Electromagneticcompatibility;EMC;Marineradio;Marineradioservice;Messages;Narrowband;Navigation;NAVTEX;Radioengineering;Radioplants;Radioreceivers;Radiosystems;Receivers;Telecommunication;Telecommunications;Telex;Weather
【摘要】:
【中国标准分类号】:L06;A47
【国际标准分类号】:33_060_20;47_020_70
【页数】:2P.;A4
【正文语种】:德语
【英文标准名称】:StandardPracticeforDeterminingResistanceofSyntheticPolymericMaterialstoFungi
【原文标准名称】:合成聚合材料防霉性的测定
【标准号】:ASTMG21-2009
【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】:G03.04
【标准类型】:(Specification)
【标准水平】:()
【中文主题词】:
【英文主题词】:fungalbiosusceptability;fungaldecay;microbiologicalassay;microbiologicalsusceptability;Fungalinfluence/resistance--polymers;Polymers;Syntheticpolymers
【摘要】:Thesyntheticpolymerportionofthesematerialsisusuallyfungus-resistantinthatitdoesnotserveasacarbonsourceforthegrowthoffungi.Itisgenerallytheothercomponents,suchasplasticizers,cellulosics,lubricants,stabilizers,andcolorants,thatareresponsibleforfungusattackonplasticmaterials.Toassesmaterialsotherthanplastics,useofthistestmethodshouldbeagreeduponbyallpartiesinvolved.Itisimportanttoestablishtheresistancetomicrobialattackunderconditionsfavorableforsuchattack,namely,atemperatureof2to38x00B0;C(35to100x00B0;F)andarelativehumidityof60to100%.Theeffectstobeexpectedareasfollows:Surfaceattack,discoloration,lossoftransmission(optical),andRemovalofsusceptibleplasticizers,modifiers,andlubricants,resultinginincreasedmodulus(stiffness),changesinweight,dimensions,andotherphysicalproperties,anddeteriorationofelectricalpropertiessuchasinsulationresistance,dielectricconstant,powerfactor,anddielectricstrength.OftenthechangesinelectricalpropertiesaredueprincipallytosurfacegrowthanditsassociatedmoistureandtopHchangescausedbyexcretedmetabolicproducts.Othereffectsincludepreferentialgrowthscausedbynonuniformdispersionofplasticizers,lubricants,andotherprocessingadditives.Attackonthesematerialsoftenleavesionizedconductingpaths.Pronouncedphysicalchangesareobservedonproductsinfilmformorascoatings,wheretheratioofsurfacetovolumeishigh,andwherenutrientmaterialssuchasplasticizersandlubricantscontinuetodiffusetothesurfaceastheyareutilizedbytheorganisms.Sinceattackbyorganismsinvolvesalargeelementofchanceduetolocalaccelerationsandinhibitions,theorderofreproducibilitymayberatherlow.Toensurethatestimatesofbehaviorarenottoooptimistic,thegreatestobserveddegreeofdeteriorationshouldbereported.Conditioningofthespecimens,suchasexposuretoleaching,weathering,heattreatment,etc.,mayhavesignificanteffectsontheresistancetofungi.Determinationoftheseeffectsisnotcoveredinthispractice.1.1Thispracticecoversdeterminationoftheeffectoffungionthepropertiesofsyntheticpolymericmaterialsintheformofmoldedandfabricatedarticles,tubes,rods,sheets,andfilmmaterials.Changesinoptical,mechanical,andelectricalpropertiesmaybedeterminedbytheapplicableASTMmethods.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Theinch-poundunitsgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:5P.;A4
【正文语种】:英语
