【英文标准名称】:StandardTestMethodforAnalysisofTanneryLiquors
【原文标准名称】:鞣皮厂液剂分析的标准试验方法
【标准号】:ASTMD6408-1999(2004)
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D31.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:鞣皮厂液剂;鞣皮液体;单宁分析;植物单宁分析;单宁;酸度
【英文主题词】:acidity;tanneryliquor;tanningliquor;tannins;tanninanalysis;vegetabletanninanalysis
【摘要】:Thistestmethodisusedtodeterminethechemicalpropertiesoftanneryliquorswhicharerelevantforthevegetabletanningprocessandinfluencetheastringencyofvegetabletanningliquors.Theastringencyofliquorsisdependentuponthesolidsandtannincontentandtheacidity.Thismethodprovidesastandardprocedurefordeterminingthesepropertiesforanysampleofvegetabletanningliquor.Thespecimensarealiquotsfromtheanalyticalsolutionpreparedfromthesampleoftanneryliquorcollectedforthispurpose.Thetotalsolids,solublesolids,andnon-tanninscontentaredeterminedandthenthetannincontentoftheliquorsampleiscalculated.BecausetheamountoftanninperliterofanalyticalsolutionislessthanthatrequiredforTestMethodD6401,atablespecifyingthequantityofpreparedhidepowdertobeusedforsolutionswithlowertanninconcentrationsisincludedinthistestmethod.ThetotalacidityoftheliquorsampleisdeterminedbyoneoftwotitrametricproceduresdescribedinTestMethodD6410.Theresultsofthistestmethodaredependentonagreatmanyvariablesbutparticularlyupon:thetemperatureconditionsunderwhichthesolutionswerepreparedandstoredandthetemperatureatwhichthecurrentanalysisisperformed;theuniformityandconsistencyoftheKaolinpastelayerdepositedontothefilterpaper;therateofsolutionrun-outfromthepipette;conditionsrelatedtothepropertiesofthehidepowderusedtoreactwiththetannincontentofthesolution;etc.Itis,therefore,essentialthatthemethodbefollowedexactlyinordertoobtainreproducibleresultsbothamongspecimenswithinalaboratoryandforanalysesbetweenlaboratories.1.1Thistestmethodcoverstheanalysisoftanneryliquorsmadeupfromvegetabletanningmaterials.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z23
【国际标准分类号】:59_140_10(PROCESSESANDAUXILIARYMATERIALS)
【页数】:3P.;A4
【正文语种】: