ASTM D1696-1995(2006) 纤维素在氢氧化钠中溶解度的标准试验方法

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【英文标准名称】:StandardTestMethodforSolubilityofCelluloseinSodiumHydroxide
【原文标准名称】:纤维素在氢氧化钠中溶解度的标准试验方法
【标准号】:ASTMD1696-1995(2006)
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:氢氧化钠;纤维素;试验
【英文主题词】:cellulose;sodiumhydroxidesolubility
【摘要】:Themeasurementofsolubleoxidizablecomponentsofcelluloseinsodiumhydroxideisindicativeofthepurityofthecellulosesample,sincepurecelluloseisinsolubleinsodiumhydroxide.Theextractedcomponentsaretypicallyhemicelluloses,whicharenaturallypresentinthewood.Differencesinpulppuritycanhaveadramaticimpactontheprocessingandpropertiesofthecellulosederivativesproducedfromthepulp.1.1Thistestmethodisintendedforapplicationtodissolving-typecellulosepulpspreparedfromcottonorwood.Theprocedureisnotdirectlyapplicabletounrefinedpulpsforuseinchemicalconversionprocessesbecausesolubilityequilibriummaynotbeattainedwithinthespecifiedextractiontime.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Y31
【国际标准分类号】:85_040
【页数】:4P.;A4
【正文语种】: