HB 1813-2000 带定位器导向轮叉
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基本信息
| 标准名称： | 带定位器导向轮叉 |
| 中标分类： | 航空、航天 >> 航空运输与地面设备 >> 机场地面服务系统及设备 |
| 替代情况： | HB 1813-1987 |
| 发布日期： | 2000-09-21 |
| 实施日期： | 2001-01-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版日期： | 1900-01-01 |
适用范围
未出版
前言
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目录
没有内容
引用标准
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所属分类： 航空 航天 航空运输与地面设备 机场地面服务系统及设备
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforTrueSpecificGravityofRefractoryMaterialsbyGas-ComparisonPycnometer
【原文标准名称】:用气体比重法测定耐火材料真实比重的标准试验方法
【标准号】:ASTMC604-2002(2007)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:C08.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:gascomparisonpycnometer;hydratablematerials;refractorymaterials;truespecificgravity;Gascomparisonpycnometer;Refractories(general);Specificgravity--refractorymaterials;Truespecificgravity
【摘要】:Thetruespecificgravityofamaterialistheratioofitstruedensity,determinedataspecifictemperature,tothetruedensityofwater,determinedataspecifictemperature.Thus,thetruespecificgravityofamaterialisaprimarypropertywhichisrelatedtochemicalandmineralogicalcomposition.ThistestmethodisparticularlyusefulforhydratablematerialswhicharenotsuitablefortestwithTestMethodC135.Forrefractoryrawmaterialsandproductsthetruespecificgravityisausefulvaluefor:classification,detectingdifferencesinchemicalcompositionbetweensupposedlylikesamples,indicatingmineralogicalphasesorphasechanges,calculatingtotalporositywhenthebulkdensityisknown,andforanyothertestmethodthatrequiresthisvalueforthecalculationofresults.Thistestmethodisaprimarystandardmethodwhichissuitableforuseinspecifications,qualitycontrol,andresearchanddevelopment.Itcanalsoserveasarefereetestmethodinpurchasingcontractsoragreements.Fundamentalassumptionsinherentinthistestmethodarethefollowing:Thesampleisrepresentativeofthematerialingeneral,Thetotalsamplehasbeenreducedtotheparticlesizespecified,Nocontaminationhasbeenintroducedduringprocessingofthesample,Theignitionofthesamplehaseliminatedallfreeorcombinedwaterwithoutinducingsinteringoralteration,Aninertgas(helium)hasbeenusedinthetest,andThetestmethodhasbeenconductedinameticulousmanner.Deviationfromanyoftheseassumptionsnegatestheusefulnessoftheresults.IninterpretingtheresultsofthistestmethoditmustberecognizedthatthespecifiedsampleparticlesizeissignificantlyfinerthanspecifiedforTestMethodC135.Eventhisfinerparticlesizeforthesampledoesnotprecludethepresenceofsomeclosedpores,andtheamountofresidualclosedporesmayvarybetweenmaterialsorevenbetweensamplesofthesameorlikematerials.Thevaluesgeneratedbythistestmethodmay,therefore,beverycloseapproximationsratherthanaccuraterepresentationsoftruespecificgravities.Thus,comparisonsofresultsshouldonlybejudiciouslymadebetweenlikematerialstestedbythistestmethodorwithfullrecognitionofpotentiallyinherentdifferencesbetweenthematerialsbeingcomparedorthetestmethodused.1.1Thistestmethodcoversthedeterminationofthetruespecificgravityofsolidmaterials,andisparticularlyusefulformaterialsthateasilyhydratewhicharenotsuitablefortestwithTestMethodC135.ThistestmethodmaybeusedasanalternateforTestMethodC135,TestMethodC128,andTestMethodC188fordeterminingtruespecificgravity.1.2Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.2.1Exception8212;In7.3theequivalentSIunitisexpressedinparenthesis.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语
【原文标准名称】:用气体比重法测定耐火材料真实比重的标准试验方法
【标准号】:ASTMC604-2002(2007)e1
【标准状态】:现行
【国别】:美国
【发布日期】:2002
【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】:C08.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:gascomparisonpycnometer;hydratablematerials;refractorymaterials;truespecificgravity;Gascomparisonpycnometer;Refractories(general);Specificgravity--refractorymaterials;Truespecificgravity
【摘要】:Thetruespecificgravityofamaterialistheratioofitstruedensity,determinedataspecifictemperature,tothetruedensityofwater,determinedataspecifictemperature.Thus,thetruespecificgravityofamaterialisaprimarypropertywhichisrelatedtochemicalandmineralogicalcomposition.ThistestmethodisparticularlyusefulforhydratablematerialswhicharenotsuitablefortestwithTestMethodC135.Forrefractoryrawmaterialsandproductsthetruespecificgravityisausefulvaluefor:classification,detectingdifferencesinchemicalcompositionbetweensupposedlylikesamples,indicatingmineralogicalphasesorphasechanges,calculatingtotalporositywhenthebulkdensityisknown,andforanyothertestmethodthatrequiresthisvalueforthecalculationofresults.Thistestmethodisaprimarystandardmethodwhichissuitableforuseinspecifications,qualitycontrol,andresearchanddevelopment.Itcanalsoserveasarefereetestmethodinpurchasingcontractsoragreements.Fundamentalassumptionsinherentinthistestmethodarethefollowing:Thesampleisrepresentativeofthematerialingeneral,Thetotalsamplehasbeenreducedtotheparticlesizespecified,Nocontaminationhasbeenintroducedduringprocessingofthesample,Theignitionofthesamplehaseliminatedallfreeorcombinedwaterwithoutinducingsinteringoralteration,Aninertgas(helium)hasbeenusedinthetest,andThetestmethodhasbeenconductedinameticulousmanner.Deviationfromanyoftheseassumptionsnegatestheusefulnessoftheresults.IninterpretingtheresultsofthistestmethoditmustberecognizedthatthespecifiedsampleparticlesizeissignificantlyfinerthanspecifiedforTestMethodC135.Eventhisfinerparticlesizeforthesampledoesnotprecludethepresenceofsomeclosedpores,andtheamountofresidualclosedporesmayvarybetweenmaterialsorevenbetweensamplesofthesameorlikematerials.Thevaluesgeneratedbythistestmethodmay,therefore,beverycloseapproximationsratherthanaccuraterepresentationsoftruespecificgravities.Thus,comparisonsofresultsshouldonlybejudiciouslymadebetweenlikematerialstestedbythistestmethodorwithfullrecognitionofpotentiallyinherentdifferencesbetweenthematerialsbeingcomparedorthetestmethodused.1.1Thistestmethodcoversthedeterminationofthetruespecificgravityofsolidmaterials,andisparticularlyusefulformaterialsthateasilyhydratewhicharenotsuitablefortestwithTestMethodC135.ThistestmethodmaybeusedasanalternateforTestMethodC135,TestMethodC128,andTestMethodC188fordeterminingtruespecificgravity.1.2Units8212;ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.2.1Exception8212;In7.3theequivalentSIunitisexpressedinparenthesis.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Q40
【国际标准分类号】:81_080
【页数】:3P.;A4
【正文语种】:英语
基本信息
| 标准名称： | 熔铅、铅锑合金电阻炉 能耗分等 |
| 中标分类： | 机械 >> 机械综合 >> 技术管理 |
| 发布部门： | 机械标准化所 |
| 发布日期： | 1991-08-28 |
| 实施日期： | 1992-07-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 提出单位： | 机械电子工业部生产司 |
| 归口单位： | 机械电子工业部机械标准化研究所 |
| 起草单位： | 国营一二一厂 |
| 起草人： | 戚振海 |
| 出版社： | 机械工业出版社 |
| 出版日期： | 1992-07-01 |
| 页数： | 3 页 |
适用范围
本标准规定了熔铅、铅锑合金电阻炉能耗分等。
本标准适用于兵器工业企业枪弹生产线上的熔铅及铅锑合金电阻炉。
前言
没有内容
目录
没有内容
引用标准
没有内容
所属分类： 机械 机械综合 技术管理