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ASTM D448-2008 道路和桥梁建筑用集料粒度的标准分类

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【英文标准名称】:StandardClassificationforSizesofAggregateforRoadandBridgeConstruction
【原文标准名称】:道路和桥梁建筑用集料粒度的标准分类
【标准号】:ASTMD448-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D04.50
【标准类型】:(Classification)
【标准水平】:()
【中文主题词】:
【英文主题词】:aggregatestandardsize;coarseaggregate;screenings;Aggregate;Bridge/structuralmaterials;Pavementsurfaces;Size/sizedistributionanalysis;Soilclassification;Soil(pavingapplications)
【摘要】:Somecontractdocumentsspecifycertainaggregatesizesforspecificusesormaysuggestoneormoreofthesesizesasappropriateforthepreparationofvariousend-productmixtures.Insomecases,closerlimitsonvariabilityoftheaggregategradingarerequired.1.1Thisclassificationdefinesaggregatesizenumberdesignationsandstandardsizerangesformechanicalsieveanalysesofcoarseaggregateandscreeningsforuseintheconstructionandmaintenanceofvarioustypesofhighwaysandbridges.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thetextofthisclassificationreferencesnotesandfootnoteswhichprovideexplanatorymaterial.Thesenotesandfootnotes(excludingthoseintablesandfigures)shallnotbeconsideredasrequirementsoftheclassification.
【中国标准分类号】:Q13
【国际标准分类号】:93_080_10
【页数】:3P.;A4
【正文语种】:英语


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【英文标准名称】:Agglomeratedstone-Testmethods-Part4:Determinationoftheabrasionresistance;GermanversionEN14617-4:2005
【原文标准名称】:烧结石料.试验方法.第4部分:耐磨性测定
【标准号】:EN14617-4-2005
【标准状态】:现行
【国别】:
【发布日期】:2005-06
【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】:试验;材料试验;测定;天然石料;磨蚀;滑动;石;抗磨性;抽样方法;试样;人工的;校正
【英文主题词】:Abrasion;Abrasionresistance;Artificial;Calibration;Determination;Materialstesting;Naturalstone;Naturalstones;Samplingmethods;Slipping;Stone;Testspecimens;Testing
【摘要】:
【中国标准分类号】:Q21
【国际标准分类号】:91_100_15
【页数】:12P.;A4
【正文语种】:英语


Product Code:SAE AIR825
Title:Oxygen Equipment for Aircraft
Issuing Committee:A-10 Aircraft Oxygen Equipment Committee
Scope:This report provides information on the design and use of aircraft oxygen systems. It explains the physiological oxygen requirements of the human body in both a normal environment and in an hypoxic environment.It includes an overview of the continuous flow, demand and pressure demand, and liquid oxygen systems. A basic understanding of how each system operates is then specifically addressed in its own titled section.The charts, tables, and schematics provide a specific example of a theoretical oxygen system design and the calculations showing how that system would meet the regulations established by the FAR's. A comprehensive overview of the theoretical oxygen requirements of the human body at altitude is also provided.A detailed list of specifications and standards applicable to aircraft oxygen systems is included.