DIN 3568-1977 工字钢和IP钢梁悬挂管道用夹板

上一篇: DIN 76-3-1977 梯形螺纹、斜梯形螺纹和圆螺纹以及其他粗牙螺纹的螺纹尾部和螺纹退刀槽
下一篇: DIN 2543-1977 铸钢法兰.公称压力16

【英文标准名称】:Animalandvegetablefatsandoils-Determinationofpolymerizedtriacylglycerolsbyhigh-performancesize-exclusionchromatography(HPSEC)(ISO16931:2009);EnglishversionofDINENISO16931:2009-08
【原文标准名称】:动植物脂肪和油.采用高效凝胶排阻层析(HPSEC)测定聚合甘油三酸酯含量(ISO16931-2009);德文版本ENISO16931-2009
【标准号】:DINENISO16931-2009
【标准状态】:现行
【国别】:德国
【发布日期】:2009-08
【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】:农产品;动物脂肪;动物油;化学分析和测试;色谱;色谱法;定义;测定;含量测定;排斥;脂肪;脂肪酸;食品;油炸;大容量;高效凝胶排阻层析;HPSEC;熔点;聚合物;精密度;定性分析;定量分析;测试;甘油三酯分析;植物脂肪;植物油
【英文主题词】:Agriculturalproducts;Animalfats;Animaloils;Chemicalanalysisandtesting;Chromatograms;Chromatography;Definitions;Determination;Determinationofcontent;Exclusion;Fats;Fattyacids;Foodproducts;Fryingfat;Highcapacity;High-performancesize-exclusionchromatography;HPSEC;Meltingpoint;Polymerisates;Precision;Qualitativeanalysis;Quantitativeanalysis;Testing;Triglyceridanalysis;Vegetablefats;Vegetableoils
【摘要】:ThisInternationalStandardspecifiesamethodusinghigh-performancesize-exclusionchromatography(HPSEC)todeterminethecontents,asmassfractions,ofpolymerizedtriacylglycerols(PTAGs)inoilsandfatswhichcontainatleast3%(frompeakareas)ofthesepolymers.PTAGs(strictlyspeakingdimericandoligomerictriacylglycerols)areformedduringtheheatingoffatsandoils,andthus,themethodservestoassessthethermaldeteriorationoffryingfatsafteruse.Thismethodisapplicabletofryingfatsandfatsandoilsthathavebeenthermallytreated,providedthatthecontentofPTAGsisatleast3%.Itcanalsobeappliedtothedeterminationofpolymersinfatsforanimalfeedstuffs,althoughinthiscase,theextractionmethodusedcanhaveaninfluenceontheresult.NOTEForfurtherdetails,seeISO6492.
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:16P.;A4
【正文语种】:英语


Product Code:SAE AMS5077
Title:Steel Tubing, Welded, (0.22 - 0.28C) (SAE 1025), Normalized or Stress Relieved (Cancelled Sep 2009)
Issuing Committee:Ams E Carbon And Low Alloy Steels Committee
Scope: