EN ISO/IEC 7942-1-1995 信息技术.计算机绘图和图形加工.图解核心系统(GKS).第1部分:功能1

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【英文标准名称】:Informationtechnology,computergraphicsandimageprocessing-GraphicalKernelSystem(GKS)-Part1:Functionaldescription(ISO/IEC7942-1:1994);EnglishversionENISO/IEC7942-1:1995
【原文标准名称】:信息技术.计算机绘图和图形加工.图解核心系统(GKS).第1部分:功能1
【标准号】:ENISO/IEC7942-1-1995
【标准状态】:现行
【国别】:
【发布日期】:1996-03
【实施或试行日期】:
【发布单位】:欧洲标准学会(EN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:图象录制;电子数据处理;功能;程序设计;图形核心系统;计算机制图;信息技术;描述;数字;数据处理;储存
【英文主题词】:Computergraphics;Computers;Dataprocessing;Descriptions;EDP;Figures;Functions;GKS;Graphicarts;Graphicalkernelsystem;Informationtechnology;Picturerecording;Programming;Storage
【摘要】:
【中国标准分类号】:L81
【国际标准分类号】:35_140
【页数】:178P.;A4
【正文语种】:英语


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Product Code:SAE AS3658
Title:Bolt, Machine - Double Hexagon Extended Washer Head, Close Tolerance Shank, Cobalt-Nickel Alloy, UNS R30159, 260 ksi min
Issuing Committee:E-25 General Standards For Aerospace And Propulsion Systems
Scope:Scope unavailable.【英文标准名称】:StandardTestMethodforBromineIndexofPetroleumHydrocarbonsbyElectrometricTitration
【原文标准名称】:电化学滴定法对石油烃溴指数的测试方法
【标准号】:ASTMD2710-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D02.04.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:bromide-bromatesolution;bromineindex;electrometrictitration;hydrocarbons;petroleum;Hydrocarbons;Petroleumproducts;Bromide-bromatesolution;Bromineindex;Electrometrictitration
【摘要】:Thistestmethodprovidesameasureoftraceamountsofunsaturatedhydrocarbonsinpetroleumdistillatesboilingupto288x00B0;C(550x00B0;F).Anestimateofthequantityofthesematerialsisusefulinassessingthesuitabilityofthelighterfractionsforuseasreactionsolvents.1.1Thistestmethodcoversthedeterminationoftheamountofbromine-reactivematerialinpetroleumhydrocarbonsandisthusameasureoftraceamountsofunsaturatesinthesematerials.Itisapplicabletomaterialshavingbromineindexesbelow1000.1.2Thistestmethodisapplicableonlytoessentiallyolefin-freehydrocarbonsormixturesthataresubstantiallyfreefrommateriallighterthanisobutaneandhaveadistillationendpointunder288x00B0;C(550x00B0;F).Note18212;Thisprocedurehasbeencooperativelytestedonmaterialswithbromineindexesintherangefrom100to1000.Thesematerialsincludepetroleumdistillatessuchasstraight-runandhydrocrackednaphtha,reformerfeed,kerosine,andaviationturbinefuel.Note28212;Materialswithbromineindexgreaterthan1000shouldbetestedforbrominenumberusingTestMethodD1159/IP130.Note38212;BromineindexofindustrialaromatichydrocarbonsshouldbedeterminedusingTestMethodD1492orD5776.Thesubcommitteeiscurrentlyexaminingwaystoachievemoreconsistentendpointvalues.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Thevaluesstatedininch-poundunitsareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:4P.;A4
【正文语种】:英语