【英文标准名称】:Essentialoils;Determinationofcarbonylvalue;Freehydroxylaminemethod
【原文标准名称】:精油羰值的测定游离羟胺法
【标准号】:ISO1271-1983
【标准状态】:现行
【国别】:国际
【发布日期】:1983-12
【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/TC54
【标准类型】:()
【标准水平】:()
【中文主题词】:化学分析;羰基化合物(无机);羰基化合物;含量测定;香精油;化学分析和试验
【英文主题词】:Carbonylcompounds(inorganic);Chemicalanalysisandtesting;Determinationofcontent;Essentialoils
【摘要】:Thedeterminationiscarriedoutbyconvertingthecarbonylcompoundstooximesbyreactionwithfreehydroxylamineliberatedinamixtureofhydroxylammoniumchlorideandpotassiumhydroxide.Theexcessalkaliistitratedwithhydrochloricacidsolution,eithercolorimetricallyorpotentiometrically.Themethodisapplicabletoessentialoilswhichcontaincarbonylcompounds(especiallyketones,excludingmethylketones)whicharedifficulttoconverttooximesbythemethodspecifiedinISO1279.Themethodisnotapplicabletoessentialoilswhichcontainsubstantialamountsofestersofotheralkali-sensitiveconstituents.
【中国标准分类号】:Y40
【国际标准分类号】:71_100_60
【页数】:4P.;A4
【正文语种】:英语