NF G07-307-1987 纺织.纤维试验.羊毛纤维束断裂强力的测定
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来源:标准资料网
【英文标准名称】:Textiles.Fibretests.Determinationofthebreakingstrengthofwoolfibrebunches.
【原文标准名称】:纺织.纤维试验.羊毛纤维束断裂强力的测定
【标准号】:NFG07-307-1987
【标准状态】:现行
【国别】:法国
【发布日期】:1987-12-01
【实施或试行日期】:1987-12-20
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:
【英文主题词】:
【摘要】:
【中国标准分类号】:W20
【国际标准分类号】:59_060_10
【页数】:15P.;A4
【正文语种】:其他
基本信息
| 标准名称： | 可转位刀具 第23部分:60°锥销杠杆夹紧外圆车刀 |
| 中标分类： |
机械 >>
工艺装备 >>
刀具 |
| ICS分类： |
机械制造 >>
切削工具
|
| 替代情况： | WJ 1501-1984 |
| 发布日期： | 2007-05-22 |
| 实施日期： | 2007-11-01 |
| 首发日期： | |
| 作废日期： | |
| 出版日期： | |
| 页数： | 11 |
适用范围
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前言
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目录
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引用标准
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所属分类： 机械 工艺装备 刀具 机械制造 切削工具
【英文标准名称】:StandardTestMethodforDeterminationofIndividualComponentsinSparkIgnitionEngineFuelsby1000150;MetreCapillary(withPrecolumn)High-ResolutionGasChromatography
【原文标准名称】:用100米毛细管(柱前)高分辨率气相色谱法测定火花点火发动机燃料中各成分的标准试验方法
【标准号】:ASTMD6730-2001(2006)e1
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:D02.04.0L
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:汽油;试验方法;机动车燃料;气相色谱法
【英文主题词】:detailedhydrocarbonanalysis;DHA;gaschromotography;hydrocarbons;opentubularcolumn;oxygenates;PIONA;PONA
【摘要】:Knowledgeoftheindividualcomponentcomposition(speciation)ofgasolinefuelsandblendingstocksisusefulforrefineryqualitycontrolandproductspecification.Processcontrolandproductspecificationcomplianceformanyindividualhydrocarbonscanbedeterminedthroughtheuseofthistestmethod.Thistestmethodisadoptedfromearlierdevelopmentandenhancement.4,5,6,7Thechromatographicoperatingconditionsandcolumntuningprocess,includedinthistestmethod,weredevelopedtoprovideandenhancetheseparationandsubsequentdeterminationofmanyindividualcomponentsnotobtainedwithprevioussingle-columnanalyses.Thecolumntemperatureprogramprofileisselectedtoaffordthemaximumresolutionofpossibleco-elutingcomponents,especiallywheretheseareoftwodifferentcompoundtypes(forexample,aparaffinandanaphthene).Althoughamajorityoftheindividualhydrocarbonspresentinpetroleumdistillatesaredetermined,someco-elutionofcompoundsisencountered.Ifthistestmethodisutilizedtodeterminebulkhydrocarbongroup-typecomposition(PONA),theuserofsuchdatashouldbecautionedthatsomeerrorwillbeencounteredduetoco-elutionandalackofidentificationofallcomponentspresent.Samplescontainingsignificantamountsofolefinicornaphthenic,orboth,constituentsaboveoctanemayreflectsignificanterrorsinPONA-typegroupings.Ifwaterisorissuspectedofbeingpresent,itsconcentrationisdeterminedbytheuseofTestMethodD1744.Othercompoundscontainingoxygen,sulfur,nitrogen,andsoforthmayalsobepresent,andmayco-elutewiththehydrocarbons.Whenknownco-elutionexists,thesearenotedinthetestmethoddatatables.Ifdeterminationofthesespecificcompoundsisrequired,itisrecommendedthattestmethodsforthesespecificmaterialsbeused,suchasTestMethodD4815andD5599foroxygenates,TestMethodD5580foraromatics,andTestMethodD5623forsulfurcompounds.1.1Thistestmethodcoversthedeterminationofindividualhydrocarboncomponentsofspark-ignitionenginefuelsandtheirmixturescontainingoxygenateblends(MTBE,ETBE,ethanol,andsoforth)withboilingrangesupto225176;C.Otherlightliquidhydrocarbonmixturestypicallyencounteredinpetroleumrefiningoperations,suchasblendingstocks(naphthas,reformates,alkylates,andsoforth)mayalsobeanalyzed;however,statisticaldatawasobtainedonlywithblendedspark-ignitionenginefuels.1.2Basedonthecooperativestudyresults,individualcomponentconcentrationsandprecisionaredeterminedintherangefrom0.01toapproximately30mass%.Thetestmethodmaybeapplicabletohigherandlowerconcentrationsfortheindividualcomponents;however,theusermustverifytheaccuracyifthetestmethodisusedforcomponentswithconcentrationsoutsidethespecifiedranges.1.3Thistestmethodalsodeterminesmethanol,ethanol,t-butanol,methylt-butylether(MTBE),ethylt-butylether(ETBE),andt-amylmethylether(TAME)insparkignitionenginefuelsintheconcentrationrangefrom1to30mass%.However,thecooperativestudydataprovidedinsufficientstatisticaldataforobtainingaprecisionstatementforthesecompounds.1.4Althoughamajorityoftheindividualhydrocarbonspresentaredetermined,someco-elutionofcompoundsisencountered.Ifthistestmethodisutilizedtoestimatebulkhydrocarbongroup-typecomposition(PONA),theuserofsuchdatashouldbecautionedthat......
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:55P.;A4
【正文语种】:
