EN 62298-3-2005 电视网应用.第3部分:超图文电视轮廓

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【英文标准名称】:Animalandvegetablefatsandoils-DetectionandidentificationofavolatileorganiccontaminentbyGC/MS
【原文标准名称】:动植物脂肪和油.通过气体色谱法(GC)/质谱(MS)法对挥发性有机杂质的检测和识别
【标准号】:BSISO15303-2001
【标准状态】:作废
【国别】:英国
【发布日期】:2001-10-19
【实施或试行日期】:2001-10-19
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:含量测定;化学分析和试验;工业的;脂肪;挥发物测定;油;植物脂肪;气相色谱法;污染物;植物油;质谱学;有机化学;食用油;动物油
【英文主题词】:Animalfats;Animaloils;Chemicalanalysisandtesting;Chromatography;Determination;Determinationofcontent;Determinationprocedures;Fats;Gaschromatography;Impurities;Organicmatters;Organicpollutants;Substances;Vegetablefats;Vegetableoils;Volatile
【摘要】:ThisInternationalStandardspecifiesamethodforthedetectionandidentificationofavolatileorganiccontaminantinedibleoils.Itisapplicabletotheidentificationofvolatileindustrialchemicalsinbothcrudeandrefinededibleoilsthataresuspectedofbeingcontaminated.Italsoenablesdeterminationoftheconcentrationofthecontaminant.ThisInternationalStandardisnotapplicabletothedeterminationoftheconcentrationofchemicalsthatmayreactwiththeedibleoilorwithoneofitsnaturalcomponents.Inthesecases,thepresenceofthecontaminantmaysometimesbeestablishedonaqualitativebasis.Also,thisInternationalStandardisnotapplicabletonon-volatilechemicals.Thismethodhasbeenshowntobeapplicablefortheidentificationofthefollowingcompoundclasses:—saturatedhalogenatedhydrocarbons;—unsaturatedhalogenatedhydrocarbons;—esters;aldehydes;alcohols;amines;ketones;ethers;—cyclicandaromaticcompounds;—nitrogencompounds;—acrylates;etc.Themethodhasbeenevaluatedforconcentrationsintherangeof1mg/kgto10mg/kg.
【中国标准分类号】:X14
【国际标准分类号】:67_200_10
【页数】:18P.;A4
【正文语种】:英语


Product Code:SAE J413
Title:Mechanical Properties of Heat Treated Wrought Steels
Issuing Committee:Carbon And Alloy Steels Committee
Scope:The figures in this SAE Information Report illustrate the principle that, regardless of composition, steels of the same cross-sectional hardness produced by tempering after through hardening will have approximately the same longitudinal tensile strength at room temperature.Figure 1 shows the relation between hardness and longitudinal tensile strength of 0.30 to 0.50% carbon steels in the fully hardened and tempered, as rolled, normalized, and annealed conditions. Figure 2 showing the relation between longitudinal tensile strength and yield strength, and Figure 3 illustrating longitudinal tensile strength versus reduction of area, are typical of steels in the quenched and tempered condition. Figure 3 shows the direct relationship between ductility and hardness and illustrates the fact that the reduction of area decreases as hardness increases, and that, for a given hardness, the reduction of area is generally higher for alloy steels than for plain carbon steels.It is evident from these curves that steels of the same cross-sectional hardness have about the same strength characteristics, so that any one of several different compositions would yield the same results. For some specific application then, the first thing to be determined is what composition is required to obtain proper hardening in the size section involved. This information is not contained in mechanical property charts, but can be determined from published data or by means of a hardenability test. Methods of making this hardenability test and interpretation of the test results are provided in SAE J406b.