【英文标准名称】:StandardPracticeforSamplingSteam
【原文标准名称】:取样蒸汽的标准实施规程
【标准号】:ASTMD1066-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:(Practice)
【标准水平】:()
【中文主题词】:工艺;抽样方法;蒸汽;水
【英文主题词】:isokineticsampling;samplecooler;sampling;samplingnozzles;saturatedsteam;superheatedsteam
【摘要】:Itisessentialtosamplesteamrepresentativelyinordertodeterminetheamountofallimpurities(dissolvedchemicals,solidparticles,chemicalsabsorbedonsolidparticles,waterdroplets)init(1).3Anaccuratemeasureofthepurityofsteamprovidesinformation,whichmaybeusedtodeterminewhetherthepurityofthesteamiswithinnecessarylimitstopreventdamageordeterioration(corrosion,solidparticleerosion,flow-acceleratedcorrosion,anddepositbuildup)ofdownstreamequipment,suchasturbines.Impuritiesinthesteammaybederivedfromboilerwatercarryover,inefficientsteamseparators,naturalsaltsolubilityinthesteamandotherfactors.Themostcommonlyspecifiedandanalyzedparametersaresodium,silica,iron,copper,andcationconductivity.1.1Thispracticecoversthesamplingofsaturatedandsuperheatedsteam.Itisapplicabletosteamproducedinfossilfiredandnuclearboilersorbyanyotherprocessmeansthatisatapressuresufficientlyaboveatmospherictoestablishtheflowofarepresentativesample.Itisalsoapplicabletosteamatlowerandsubatmosphericpressuresforwhichmeansmustbeprovidedtoestablishrepresentativeflow.1.2Forinformationonspecializedsamplingequipment,testsormethodsofanalysis,referenceshouldbemadetotheAnnualBookofASTMStandards,Vols11.01and11.02,relatingtowater.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_30
【页数】:5P.;A4
【正文语种】: