MIL-A-8867C
作者:标准资料网 时间:2024-05-12 07:07:20 浏览:9391
来源:标准资料网
MIL-A-8867C, MILITARY SPECIFICATION: AIRCRAFT STRENGTH AND RIGIDITY GROUND TESTS (23 MAR 1987)., This specification contains the requirements which, in combination with other applicable specifications, define the ground tests required for structural evaluation of fixed wing piloted airplanes.
基本信息
| 标准名称： | 加工３００Ｍ钢的普通螺纹滚丝轮 ４５型 ｄ＝３~８ｍｍ ｐ＝０．５~１ｍｍ |
| 中标分类： |
航空、航天 >>
航空器与航天器制造用设备 >>
刀具 |
| 发布日期： | 1996-09-13 |
| 实施日期： | 1997-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
| 页数： | 2页 |
适用范围
没有内容
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 航空 航天 航空器与航天器制造用设备 刀具
【英文标准名称】:StandardTestMethodforBoilingPointDistributionofSampleswithResiduesSuchasCrudeOilsandAtmosphericandVacuumResiduesbyHighTemperatureGasChromatography
【原文标准名称】:用高温气相色谱法测定带有类似原油和大气以及真空残留物的样品的沸点分布的标准试验方法
【标准号】:ASTMD7169-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D02.04.0H
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:高温;气相色谱法;气体;大气的;残留物;物理化学法;分配;分析方法;试样;沸点;原油;真空的;试验
【英文主题词】:boilingpointdistribution;crudeoils;cutpointintervals;distillationresidues;lubricants;residues;simulateddistillation
【摘要】:Thedeterminationoftheboilingpointdistributionofcrudeoilsandvacuumresidues,aswellasotherpetroleumfractions,yieldsimportantinformationforrefineryoperation.Theseboilingpointdistributionsprovideinformationastothepotentialmasspercentyieldofproducts.Thistestmethodmayprovideusefulinformationthatcanaidinestablishingoperationalconditionsintherefinery.Knowledgeoftheamountofresidueproducedisimportantindeterminingtheeconomicsoftherefiningprocess.1.1Thistestmethodcoversthedeterminationoftheboilingpointdistributionandcutpointintervalsofcrudeoilsandresiduesbyusinghightemperaturegaschromatography.Theamountofresidue(orsamplerecovery)isdeterminedusinganexternalstandard.1.2Thistestmethodextendstheapplicabilityofsimulateddistillationtosamplesthatdonotelutecompletelyfromthechromatographicsystem.Thistestmethodisusedtodeterminetheboilingpointdistributionthroughatemperatureof720C.Thistemperaturecorrespondstotheelutionofn-C100.1.3Thistestmethodisusedforthedeterminationofboilingpointdistributionofcrudeoils.Thistestmethodusescapillarycolumnswiththinfilms,whichresultsintheincompleteseparationofC4-C8inthepresenceoflargeamountsofcarbondisulfide,andthusyieldsanunreliableboilingpointdistributioncorrespondingtothiselutioninterval.Inaddition,quenchingoftheresponseofthedetectoremployedtohydrocarbonselutingduringcarbondisulfideelution,resultsinunreliablequantitativeanalysisoftheboilingdistributionintheC4-C8region.Sincethedetectordoesnotquantitativelymeasurethecarbondisulfide,itssubtractionfromthesampleusingasolvent-onlyinjectionandcorrectionstothisregionviaquenchingfactors,resultsinanapproximatedeterminationofthenetchromatographicarea.Aseparate,higherresolutiongaschromatograph(GC)analysisofthelightendportionofthesamplemaybenecessaryinordertoobtainamoreaccuratedescriptionoftheboilingpointcurveintheintervalinquestion(see).1.4Thistestmethodisalsodesignedtoobtaintheboilingpointdistributionofotherincompletelyelutingsamplessuchasatmosphericresidues,vacuumresidues,etc.,thatarecharacterizedbythefactthatthesamplecomponentsareresolvedfromthesolvent.1.5Thistestmethodisnotapplicablefortheanalysisofmaterialscontainingaheterogeneouscomponentsuchaspolyestersandpolyolefins.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.7Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificwarningstatementsaregiveninSection8.
【中国标准分类号】:Z15
【国际标准分类号】:71_040_50
【页数】:17P.;A4
【正文语种】:
