【英文标准名称】:Rubbercompoundingingredients-Determinationofmultipointnitrogensurfacearea(NSA)andstatisticalthicknesssurfacearea(STSA)
【原文标准名称】:橡胶配合料.多点氮表面面积(NSA)和统计厚度表面面积(STSA)的测定
【标准号】:ISO18852-2005
【标准状态】:作废
【国别】:国际
【发布日期】:2005-05
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC45
【标准类型】:()
【标准水平】:()
【中文主题词】:测量技术;试验;化学性质;测量;测定;精整;解释;厚度;BET法;BRUNAUER;EMMETT;表面;橡胶;面积测量;烟灰;表面性质;平盘;橡胶混合物;参考材料;充电材料;炭黑;装填材料;气体吸附;分析
【英文主题词】:Analysis;Areameasurement;BETmethod;Brunauer;Carbonblack;Chargematerials;Chemicalproperties;Determination;Emmett;Finishes;Gasadsorption;Interpretations;Measurement;Measuringtechniques;Plates(tableware);Referencematerials;Rubber;Rubbermixture;Soot;Surfaceproperties;Surfaces;Testing;Thickness
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofthenitrogensurfacearea(NSA)ofcarbonblacksandotherrubbercompoundingingredients,likesilicasandzincoxides,basedontheBrunauer,EmmettandTeller(BET)theoryofgasadsorptionusingamultipointdetermination.Thistestmethodspecifiesthesamplepreparationandtreatment,instrumentcalibration,requiredaccuracyandprecisionoftheexperimentaldata,andcalculationofthesurfacearearesultsfromthedataobtained.Alsogivenisaprocedureforcalculatingthestatisticalthicknesssurfacearea(STSA),otherwiseknownastheexternalsurfacearea.Thetestmethodspecifiedusesanautomaticvolumetricstatic-vacuumapparatus,thesurfaceareabeingcalculatedusingtheBETtheorybasedonmonolayermeasurements.Themethodcanalsobeusedforverifying"single-point"proceduresdescribedinISO4652-1andotherstandards.Theautomaticinstrumentsdescribedinthesestandardsperformallthenecessarycomputations,includingthatofthesurfaceareabasedonstatisticalthickness.However,theautomaticpoint-settingproceduresusedarenotapplicabletotheSTSAmethod.NOTEAutomaticinstrumentsbasedoncontinuousflowusingmixturesofnitrogenandheliumgasinvariousratiosarealsoavailable.Asgoodastheyare,itishighlydesirabletoverifytheiraccuracyofmeasurementagainstresultsobtainedfromstatic-vacuum-typeinstruments.
【中国标准分类号】:G34
【国际标准分类号】:83_040_20
【页数】:11P;A4
【正文语种】:英语