ASTM D2929-1989(2006) 用X射线荧光法测定纤维素材料中硫含量的标准试验方法

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【英文标准名称】:StandardTestMethodforSulfurContentofCellulosicMaterialsbyX-RayFluorescence
【原文标准名称】:用X射线荧光法测定纤维素材料中硫含量的标准试验方法
【标准号】:ASTMD2929-1989(2006)
【标准状态】:现行
【国别】:
【发布日期】:1989
【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】:D01.36
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:纤维素;硫;试验;含量测定
【英文主题词】:celluloseesters;combinedsulfur;salts;pulseheightanalyzer
【摘要】:Thisprocedureprovidesamethodfordeterminingsulfurcontentincellulosicmaterialsbynondestructivemeans.Sulfurmaybeintheformofsulfateestersthatmaycontributetothermalinstability.Sulfurcanalsobepresentassaltsthatcancausehazeinsolutions.1.1ThistestmethodcoversdeterminationofsulfurcontentofcellulosicmaterialsbyX-rayfluorescence.1.2Usingappropriatestandards,therangeoftheprocedureisfromapproximately10ppmto20%sulfur.1.3ThistestmethodisproposedspecificallyasanalternativetoTestMethodsD871,sectionsonSignificanceandUse,Apparatus,Reagents,ProcedureandCalculationofHydroxylContent,andTestMethodsD817,sectionsonSummaryofTestMethod,SignificanceandUse,Apparatus,Reagents,andProcedureofHydroxylContent.Asappliedtocelluloseestersitmeasuresthecombinedsulfurandsulfurintheaccompanyinginorganicsalts.1.4Todeterminecombinedsulfur,thesample,whensoluble,mustfirstbereprecipitatedintodiluteacidtoremovethenoncombinedsulfurcompounds.1.5ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,see.
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:3P.;A4
【正文语种】: