DIN 76-2-1984 与ISO228第1部分相符的管螺纹的螺纹收尾和空刀槽

上一篇: DIN 7500-2-1984 ISO米制螺纹用螺纹压制螺钉.孔直径的指导值
下一篇: DIN 267-2-1984 紧固件.交货技术条件.结构和尺寸精度

【英文标准名称】:Petroleumproducts.Determinationofsulfurcontentofautomotivefuels.Wavelength-dispersiveX-rayfluorescencespectrometry
【原文标准名称】:石油产品.汽车燃料硫含量的测定.波长色散X射线荧光光谱仪
【标准号】:BSENISO20884-2011
【标准状态】:现行
【国别】:英国
【发布日期】:2011-05-31
【实施或试行日期】:2011-05-31
【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】:
【英文主题词】:Analysis;Automobiles;Automotivefuels;Chemicalanalysisandtesting;Content;Determinationofcontent;Diesel;Dieselfuels;Fluorimetry;Gasoline;Materialstesting;Methodsofanalysis;Mineraloils;Motorvehicles;Petroleumproducts;Roadvehicles;Sulphur;Sulphurcontent;Testing;Wavelengthdispersive;X-rayfluorescencespectrometry
【摘要】:WARNING—TheuseofthisInternationalStandardmayinvolvehazardousmaterials,operationsandequipment.ThisInternationalStandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.ItistheresponsibilityoftheuserofthisInternationalStandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ThisInternationalStandardspecifiesawavelength-dispersiveX-rayfluorescence(WDXRF)testmethodforthedeterminationofthesulfurcontentofliquid,homogeneousautomotivefuelsfrom5mg/kgto500mg/kg,whichhaveamaximumoxygencontentof3,7%(m/m).Thisproductrangecoversdieselfuelscontaininguptoabout10%(V/V)fattyacidmethylesters(FAME)andmotorgasolinescontaininguptoabout10%(V/V)ethanol.NOTE1Sulfurcontentshigherthan500mg/kgcanbedeterminedaftersampledilution.However,theprecisionwasnotestablishedfordilutedsamples.Productswithhigheroxygencontentshowsignificantmatrixeffects,e.g.FAMEusedasbiodiesel.Nevertheless,FAMEmaybeanalysedwhenthecorrespondingproceduresarefollowed(see4.3and7.1).Otherproductsmaybeanalysedwiththistestmethod.However,precisiondataforproductsotherthanthosementionedhavenotbeenestablishedforthisInternationalStandard.NOTE2ForthepurposesofthisInternationalStandard,theterms“%(m/m)”and“%(V/V)”areusedtorepresentthemassfractionandthevolumefractionofamaterialrespectively.
【中国标准分类号】:E31
【国际标准分类号】:75_080;75_160_30
【页数】:18P.;A4
【正文语种】:英语


【英文标准名称】:Mineplans;petrography;generallyapplicablesymbols;sediments
【原文标准名称】:矿山平面图.岩相学.一般应用符号.第1部分:沉积物
【标准号】:DIN21920-1-1988
【标准状态】:现行
【国别】:德国
【发布日期】:1988-11
【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】:岩石学;矿物;采掘;沉淀物;设计图;岩石分析;经济地质学;地质分析;符号;矿床;草图;沉积岩
【英文主题词】:petrographicanalysis;petrography;plans;symbols;geologicalanalysis;economicgeology;minerals;sedimentaryrocks;mineraldeposits;sketches;sediment;mining
【摘要】:
【中国标准分类号】:D10
【国际标准分类号】:73_020
【页数】:8P.;A4
【正文语种】:德语