ANSI/NFPA 35-2005 有机覆层的制造
作者:标准资料网 时间:2024-05-16 15:31:16 浏览:8263
来源:标准资料网
【英文标准名称】:ManufactureofOrganicCoatings
【原文标准名称】:有机覆层的制造
【标准号】:ANSI/NFPA35-2005
【标准状态】:作废
【国别】:美国
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:生产方法;覆层;表面处理;有机覆层
【英文主题词】:Coatings;Methodsofmanufacture;Organiccoatings;Surfacetreatment
【摘要】:Coversutilitygasplantsforthedesign,construction,location,installationandoperationofrefrigeratedandnon-refrigeratedliquefiedpetroleumgassystems.
【中国标准分类号】:A29
【国际标准分类号】:25_220_60
【页数】:
【正文语种】:英语
【英文标准名称】:InformationtechnologySecuritytechniquesTime-stampingservicesPart1:FrameworkAdoptedbyINCITS
【原文标准名称】:信息技术.安全技术.计时打印服务.第1部分:INCITS采用框架
【标准号】:ANSIISO/IEC18014-1-2002
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:ThispartofISO/IEC18014:1.identifiestheobjectiveofatime-stampingauthority;2.describesageneralmodelonwhichtime-stampingservicesarebased;3.definestime-stampingservices;4.definesthebasicprotocolsoftime-stamping;5.specifiestheprotocolsbetweentheinvolvedentities.
【中国标准分类号】:L70
【国际标准分类号】:35_040
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforTraceAnionsinHighPurityWaterbyIonChromatography
【原文标准名称】:离子色谱法测定高纯度水中痕量阴离子的标准试验方法
【标准号】:ASTMD5542-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D19.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:氯化物含量;硝酸盐含量;乙酸酯;高;磷酸盐;亚硝酸盐;水;甲酸酯;离子交换色谱法;试验;阴离子
【英文主题词】:anion;eluant;ionchromatography;trace
【摘要】:Theanionsfluoride,chloride,andsulfatehavebeenidentifiedasimportantcontributorstocorrosionofhighpressureboilers,electricpowerturbinesandtheirassociatedheatexchangers.Manyelectricpowerutilitiesattempttoreducethesecontaminantsintheirboilerfeedwatertolessthan1x03BC;g/L.Inthesemiconductormanufacturingprocesstheseions,amongothers,havebeenidentifiedasacauseoflowproductyieldand,thus,mustbemonitoredandcontrolledtolevelssimilartothoserequiredbytheelectricpowerindustry.Lowmolecularweightorganicacids,suchasacetateandformate,havebeenfoundinmanysteamgeneratorfeedwatersandcondensates.Theyarebelievedtocomefromthehightemperaturebreakdownoforganicmatterfoundinboilermakeupwater.ItisfeltthattheseorganicacidspromotecorrosionbyloweringthepHofboilerwatersandmayevenbecorrosivethemselves.Suchlowmolecularweightorganicsmayalsobeproducedwhenultravioletlightisusedtoproducebacteria-freewaterforsemiconductorprocessing.Suchpolarorganiccontaminantsaresuspectedofcausingreducedsemiconductoryields.Phosphatesarecommonlyaddedtodrumboilersinthelowmg/Lleveltoprecipitatecalciumandmagnesiumandtherebypreventscaleformation.Ionchromatographycanbeusedtomonitortheconcentrationofsuchchemicalsinboilerwater,aswellasdetectunwantedcarry-overintothesteam.1.1Thesetestmethodscoverthedeterminationoftrace(g/L)levelsoffluoride,acetate,formate,chloride,phosphate,andsulfateinhighpuritywaterusingionchromatographyincombinationwithsamplepreconcentration.Otheranions,suchasbromide,nitrite,nitrate,sulfite,andiodidecanbedeterminedbythismethod.However,sincetheyarerarelypresentinsignificantconcentrationsinhighpuritywater,theyarenotincludedinthistestmethod.Twotestmethodsarepresentedandtheirrangesofapplication,asdeterminedbyacollaborativestudy,areasfollows:RangeTested(956;g/LAdded)LimitofDetection(SingleOperator)(956;g/L)SectionsTestMethodA:7-15Chloride0-240.8Phosphate0-39Sulfate0-551.8TestMethodB:16-22Fluoride0-140.7Acetate0-4146.8Formate0-3465.6
