【英文标准名称】:Waterquality-Determinationofselectedphthalatesusinggaschromatography/massspectrometry(ISO18856:2004);EnglishversionofDINENISO18856:2006
【原文标准名称】:水质.用气相色谱法/质谱法测定被选邻苯二甲酸酯
【标准号】:DINENISO18856-2005
【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】:水质;测定;含量测定;化学分析和试验;邻苯二甲酸酯;水常规;地下水;水;气相色谱法;饮用水;抽样方法;地表水;质谱学;污水;萃取;固相萃取
【英文主题词】:Chemicalanalysisandtesting;Determination;Determinationofcontent;Extraction;Gaschromatography;Gasphasechromatography;Groundwater;Massspectrometry;Phthalates;Potablewater;Samplingmethods;Sewage;Solidphaseextraction;Surfacewater;Water;Waterpractice;Waterquality
【摘要】:ThisInternationalStandardspecifiesamethodforthedeterminationofphthalatesinwateraftersolidphaseextractionandgaschromatography/massspectrometry.Thismethodisapplicabletothedeterminationofphthalates(seeTable1)ingroundwater,surfacewater,wastewateranddrinkingwaterinmassconcentrationsrangingfromabove0,02μg/Iupto0,150μg/I,dependingontheindividualsubstanceandthevalueoftheblank.TheapplicabilityofthismethodtootherphthalatesnotspecifiedinTable1isnotexcluded,butitisnecessarytodetermineitsapplicabilityineachcase(seeAnnexAforthelistofphthalates).GeneralremarksconcerningtherecoveryanduseofinternalstandardsisgiveninAnnexB.
【中国标准分类号】:Z16
【国际标准分类号】:13_060_50
【页数】:39P.;A4
【正文语种】:英语


【英文标准名称】:Mathematicaldefinitionofdimensioningandtolerancingprinciples
【原文标准名称】:尺寸计算和公差原理的数学定义
【标准号】:ASMEY14.5.1M-1994
【标准状态】:现行
【国别】:美国
【发布日期】:1994
【实施或试行日期】:
【发布单位】:美国机械工程师协会(US-ASME)
【起草单位】:ASME
【标准类型】:()
【标准水平】:()
【中文主题词】:图解表示法;数学方法;工程图;图形表示;尺寸公差;公差(测量);尺寸选定;定义
【英文主题词】:Definitions;Dimensionaltolerances;Dimensioning;Engineeringdrawings;Graphicrepresentation;Mathematicalmethods;Metric;Tolerances(measurement)
【摘要】:Thisstandardpresentsamathematicaldefinitionofgeometricaldimensioningandtolerancing(GD&T)consistentwiththeprinciplesandpracticesofASMEY14.5M:1994,enablingdeterminationofactualvalues.WhilethegeneralformatofthisstandardparallelsthatofASMEY14.5M:1994,thelatterdocumentshouldbeconsultedforpracticesrelatingtodimensioningandtolerancingforuseonengineeringdrawingsandinrelateddocumentation.TextualreferencesareincludedthroughoutthisstandardwhicharedirectquotationsfromASMEY14.5M:1994.Allsuchquotationsareidentifiedbyitalicizedtype.Anydirectreferencestootherdocumentsareidentifiedbyanimmediatecitation.Thedefinitionsestablishedinthisstandardapplytoproductspecificationsinanyrepresentation,includingdrawings,electronicexchangeformats,ordatabases.Whenreferenceismadeinthisstandardtoapartdrawing,itappliestoanyformofproductspecification.
【中国标准分类号】:J04
【国际标准分类号】:01_100_01
【页数】:92P.;A4
【正文语种】:英语