【英文标准名称】:Paintsandvarnishes-Corrosionprotectionofsteelstructuresbyprotectivepaintsystems-Part2:Classificationofenvironments
【原文标准名称】:色漆和清漆防护漆体系对钢结构的腐蚀防护第2部分:环境分类
【标准号】:ISO12944-2-1998
【标准状态】:现行
【国别】:国际
【发布日期】:1998-05
【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/TC35
【标准类型】:()
【标准水平】:()
【中文主题词】:清漆;覆层材料;分类系统;结构;钢结构作业;涂料;腐蚀性;防腐蚀;金属覆层;环境条件;防护覆层;材料试验;负荷;定义;腐蚀;覆层;腐蚀应力;钢架结构;建筑;钢
【英文主题词】:Classificationsystems;Coatingmaterials;Coatings;Construction;Corrosion;Corrosionprotection;Corrosivestresses;Corrosivity;Definitions;Environmentalcondition;Loading;Materialstesting;Metalcoatings;Paints;Protectivecoatings;Steel-framedconstructions;Steels;Structuralsteelwork;Structures;Varnishes
【摘要】:1ThispartofISO12944dealswiththeclassificationoftheprincipalenvironmentstowhichsteelstructuresareexposed,andthecorrosivityoftheseenvironments.It—definesatmospheric-corrosivitycategories,basedonmassloss(orthicknessloss)bystandardspecimens,anddescribestypicalnaturalatmosphericenvironmentstowhichsteelstructuresareexposed,givingadviceontheestimationofthecorrosivity;—describesdifferentcategoriesofenvironmentforstructuresimmersedinwaterorburiedinsoil;—givesinformationonsomespecialcorrosionstressesthatmaycauseasignificantincreaseincorrosionrateorplacehigherdemandsontheperformanceoftheprotectivepaintsystem.Thecorrosionstressesassociatedwithaparticularenvironmentorcorrosivitycategoryrepresentoneessentialparametergoverningtheselectionofprotectivepaintsystems.2ThispartofISO12944doesnotdealwiththeclassificationofthoseenvironmentsthatconsistofspecialatmospheres(forexamplethoseinandaroundchemicalandmetallurgicalplants).
【中国标准分类号】:G51
【国际标准分类号】:87_020;91_080_10
【页数】:8P.;A4
【正文语种】:英语


【英文标准名称】:Animalandvegetablefatsandoils-Gaschromatographyoffattyacidmethylesters-Part2:Preparationofmethylestersoffattyacids(ISO12966-2:2011);GermanversionENISO12966-2:2011
【原文标准名称】:动物和植物的脂肪和油.脂肪酸甲基酯的气相色谱分析.第2部分:脂肪酸甲酯的制备(ISO12966-2-2011).德文版本ENISO12966-2-2011
【标准号】:DINENISO12966-2-2011
【标准状态】:现行
【国别】:德国
【发布日期】:2011-05
【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;动物脂肪;动物油;三氟化硼;化学分析和测试;化学反应;酯化作用;酯;脂肪;脂肪酸甲酯;脂肪酸;食品;气相色谱法;实验室取样;测量;测量仪器;测量技术;生产方法;甲酯;甲基化;油;规程;生产;报告;试样;抽样方法;试样制备;试验性能;试验报告;试验;试验装置;薄层色谱法;植物;植物脂肪;植物油
【英文主题词】:Agriculturalproducts;Animal;Animalfats;Animaloils;Borontrifluoride;Chemicalanalysisandtesting;Chemicalreactions;Esterification;Esters;Fats;Fattyacidmethylesters;Fattyacids;Foodproducts;Gaschromatography;Laboratorysample;Measurement;Measuringinstruments;Measuringtechniques;Methodsofmanufacture;Methylesters;Methylation;Oils;Procedures;Production;Reports;Samples;Samplingmethods;Specimenpreparation;Testperformance;Testreports;Testing;Testingdevices;Thin-layerchromatography;Vegetable;Vegetablefats;Vegetableoils
【摘要】:ThispartofISO12966specifiesmethodsofpreparingthemethylestersoffattyacids.Itincludesmethodsforpreparingfattyacidmethylestersfromanimalandvegetablefatsandoils,fattyacidsandsoaps.Tocoverdifferentrequirementsfourmethylationmethodsarespecified,namely:a)a“rapid”transmethylationprocedureunderalkalineconditions;b)a“general”transmethylation/methylationprocedureundersequentialalkalineandacidconditions;c)aBF3transmethylationprocedure;d)analternativeprocedureusingacid-catalysedtransmethylationofglycerides.Methylesterssoproducedareusedinvariousanalyticalproceduresrequiringsuchderivatives,e.g.gas-liquidchromatography(GLC),thin-layerchromatography(TLC),andinfraredspectrometry(IR).
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:25P.;A4
【正文语种】:英语