【英文标准名称】:StandardPracticeforUseofChemicallySettingChemical-ResistantSilicateandSilicaMortars
【原文标准名称】:化硬性耐化学腐蚀的硅酸盐及硅土灰浆使用的标准实施规范
【标准号】:ASTMC397-2000
【标准状态】:现行
【国别】:美国
【发布日期】:2000
【实施或试行日期】:
【发布单位】:美国材料与试验协会(ASTM)
【起草单位】:ASTM
【标准类型】:()
【标准水平】:()
【中文主题词】:耐化学腐蚀材料;施工材料;硅酸盐;规范(验收);灰浆
【英文主题词】:silicates;chemical-resistantmaterials;constructionmaterials;mortars;specification(approval)
【摘要】:
【中国标准分类号】:Q13
【国际标准分类号】:91_100_10
【页数】:
【正文语种】:英语


【英文标准名称】:StandardGuideforUseofWaterTriplePointCells
【原文标准名称】:水三相点瓶使用标准指南
【标准号】:ASTME1750-2002
【标准状态】:现行
【国别】:
【发布日期】:2002
【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】:E20.07
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:
【英文主题词】:calibration;definingfixedpoint;fixedpoint;hydrostaticheadpressure;InternationalTemperatureScaleof1990(ITS-90);intrinsicproperty;KelvinThermodynamicTemperatureScale(KTTS);qualification;self-heating;standardplatinumresistancethermometer(SPRT);triplepoint;triplepointofwater;watertriplepointcell
【摘要】:Thisguidedescribesaprocedureforplacingawatertriple-pointcellinserviceandforusingitasareferencetemperatureinthermometercalibration.Thereferencetemperatureattainedisthatofafundamentalstateofpurewater,theequilibriumbetweencoexistingsolid,liquid,andvaporphases.Thecellissubjecttoqualificationbutnottocalibration.Thecellmaybequalifiedascapableofrepresentingthefundamentalstate(see4.2)bycomparisonwithabankofsimilarqualifiedcellsofknownhistory,anditmaybesoqualifiedandthequalificationdocumentedbyitsmanufacturer.Thetemperaturetobeattributedtoaqualifiedwatertriple-pointcellisexactly273.16KontheITS-90.Continuedaccuracyofaqualifiedcelldependsuponsustainedphysicalintegrity.ThismaybeverifiedbytechniquesdescribedinSection6.Thecommerciallyavailabletriplepointofwatercellsdescribedinthisstandardarecapableofachievinganexpandeduncertainty(k=2)ofbetweenx00B1;0.1mKandx00B1;0.05mK,dependinguponthemethodofpreparation.Specifiedmeasurementproceduresshallbefollowedtoachievetheselevelsofuncertainty.1.1Thisguidecoversthenatureoftwocommercialwatertriple-pointcells(typesAandB,seeFig.1)andprovidesamethodforpreparingthecelltorealizethewatertriple-pointandcalibratethermometers.Testsforassuringtheintegrityofaqualifiedcellandofcellsyettobequalifiedaregiven.Precautionsforhandlingthecelltoavoidbreakagearealsodescribed.1.2Theeffectofhydrostaticpressureonthetemperatureofawatertriple-pointcellisdiscussed.1.3ProceduresforadjustingtheobservedSPRTresistancereadingsfortheeffectsofself-heatingandhydrostaticpressurearedescribedinAppendixX1andAppendixX2.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:N04
【国际标准分类号】:17_200_20(TEMPERATURE-MEASURINGINSTRUMENTS)
【页数】:6P.;A4
【正文语种】: