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【英文标准名称】:Animalandvegetablefatsandoils-Determinationofisolatedtransisomersbyinfraredspectrometry(ISO13884:2003);EnglishversionofDINENISO13884:2005
【原文标准名称】:动物和植物脂肪和油.用红外光谱测定法测定孤立的反式异构体
【标准号】:DINENISO13884-2005
【标准状态】:现行
【国别】:德国
【发布日期】:2005-11
【实施或试行日期】:
【发布单位】:德国标准化学会(DE-DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;化学分析和试验;分光光度法;定义;试验;方法;试验报告;植物脂肪;动物脂肪;试样制备;食品;植物油;校正;红外线光谱法;动物油;抽样方法;光谱测定法;油;脂肪;农产品;异构体
【英文主题词】:Agriculturalproducts;Animalfats;Animaloils;Calibration;Chemicalanalysisandtesting;Definition;Definitions;Determination;Fats;Foodproducts;Infraredspectroscopy;Investigations;Isomer;Methods;Oils;Samplingmethods;Specimenpreparation;Spectrometry;Spectrophotometry;Testing;Tests;Vegetablefats;Vegetableoils
【摘要】:ThisInternationalStandardspecifiesamethodfortheaccuratedeterminationofisolatedtransbondsinnaturalorprocessedlong-chainfattyacids,fattyacidestersandtriglycerideswithtransisomerlevels≥5%.Themethodisnotapplicable,orisapplicableonlywithspecificprecautions,tofatsandoilscontaininghighlevels(over5%)ofconjugatedunsaturation(e.g.tungoil),materialscontainingfunctionalgroupswhichmodifytheintensityoftheC-Hdeformationaboutthetransdoublebond[e.g.castoroilcontainingricinoleicacidoritsgeometricalisomer,ricinelaidicacid(12-hydroxy-9-octadecenoicacid)],mixedtriglycerideshavinglong-andshort-chainmoieties(suchasdiacetostearin),oringeneral,anymaterialscontainingconstituentswhichhavefunctionalgroupswhichgiverisetospecificabsorptionbandsatorsufficientlyclosetointerferewiththe966cm-1bandoftheC-Hdeformationoftheisolatedtransdoublebond.NOTEDienes,suchascis-transandtrans-transdienes,canaffectthecalibration.Foraccuratedeterminationsonmaterialswithtranslevelsbelow5%,astandardizedcapillaryGLCmethodisrecommended(forexample,seeISO15304).
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:13P.;A4
【正文语种】:英语


Product Code:SAE AS624
Title:Hose Assembly, 3000 psi, PTFE, Flareless 45掳 to 45掳, Heavyweight
Issuing Committee:G-3, Aerospace Couplings, Fittings, Hose, Tubing Assemblies
Scope:No scope available.