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SAE AMS4071 Aluminum Alloy, Drawn, Round, Seamless Hydraulic Tubing, 2.5Mg - 0.25Cr (5052-O), Annealed

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Product Code:SAE AMS4071
Title:Aluminum Alloy, Drawn, Round, Seamless Hydraulic Tubing, 2.5Mg - 0.25Cr (5052-O), Annealed
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of drawn, round seamless tubing.This tubing has been used typically for parts, such as hydraulic systems and fuel and oil lines, but usage is not limited to such applications.
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【英文标准名称】:Sectionalspecificationforcapabilityapprovalofmanufacturersofsingle-ordouble-sidedflexibleprintedwiringboardsofassessedqualitywithoutthroughholeconnectionsandwithorwithoutrigidizingcomponentmaterials
【原文标准名称】:经质量评定的无穿透镀膜孔连接的带或不带硬化成份材料的单面或双面挠性印制电路板制造商性能鉴定用分规范
【标准号】:BS9764-1988
【标准状态】:作废
【国别】:英国
【发布日期】:1988-10-31
【实施或试行日期】:1988-10-31
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:印制电路板;双;精整;电子设备及元件;质量保证体系;能力鉴定;厚度;布置;试验条件;试样;金属覆层;统计质量控制;质量管理;式样;旁边;印制电路;认可试验;缺陷与故障;尺寸;抽样方法;验收检验;检验;规范(批准);印制电路基板;单;性能;评估的质量;柔性材料
【英文主题词】:
【摘要】:SpecifiesapplicabletestsandrequirementstakenfromthoselistedinBS9760.Alsotherequirementsforcapabilityapprovalandforqualityconformanceduringmanufacture.
【中国标准分类号】:L30
【国际标准分类号】:31_180
【页数】:40P;A4
【正文语种】:英语


【英文标准名称】:Plastics-Determinationofwaterabsorption
【原文标准名称】:塑料.吸水率测定
【标准号】:BSENISO62-1999
【标准状态】:作废
【国别】:英国
【发布日期】:1999-04-15
【实施或试行日期】:1999-04-15
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:试样;潮气测量;含量测定;试样制备;尺寸;重量测量;数学计算;高聚物;管状;增强的材料;塑料;四方形;吸水试验;吸水率;扩散;煮沸试验;试验条件;方程
【英文主题词】:Absorption;Absorptivity;Determination;Determinationprocedures;Humidity;Moisture;Plastics;Quantityofwater;Testpieces;Testing;Tests;Water;Waterabsorption
【摘要】:1ThisInternationalStandarddescribesaprocedurefordeterminingthemoistureabsorptionpropertiesinthe"through-the-thickness"directionofflatorcurved-formsolidplastics.ThisInternationalStandardalsodescribesproceduresfordeterminingtheamountofwaterabsorbedbyplasticspecimensofdefineddimensions,whenimmersedinwaterorwhensubjectedtohumidairundercontrolledconditions.The"through-the-thickness"moisturediffusioncoefficientcanbedeterminedforsingle-phasematerialbyassumingFickiandiffusionbehaviourwithconstantmoistureabsorptionpropertiesthroughthethicknessofthetestspecimen.Thismodelisvalidforhomogeneousmaterialsandforreinforcedpolymer-matrixcompositestestedbelowtheirglasstransitiontemperature.However,sometwo-phasematricessuchashardenedepoxiesmayrequireamulti-phaseabsorptionmodelwhichisnotcoveredbythisInternationalStandard.2Ideallythebestcomparisonofthewaterabsorptionpropertiesand/ordiffusioncoefficientsofmaterialsshouldbecarriedoutonlyusingtheequilibriummoisturecontentofplasticsexposedtoidenticalconditions.Thecomparisonofmaterialsusingpropertiesatmoistureequilibriumdoesnotassume,andisthereforenotlimitedto,single-phaseFickiandiffusionbehaviour.3Alternatively,waterabsorptionofplasticspecimensofdefineddimensionsexposedtoimmersionorhumidityundercontrolledconditionsbutforanarbitrarytimeperiodcanbeusedtocomparedifferentbatchesofthesamematerialorforqualitycontroltestsofagivenmaterial.Forthistypeofcomparison,itisessentialthatalltestspecimensbeofidenticaldimensionsand,asnearlyaspossible,havethesamephysicalattributes,e.g.surfacesmoothness,internalstresses,etc.However,moistureequilibriumisnotreachedundertheseconditions.Therefore,resultsfromthistypeoftestcannotbeusedtocomparethewaterabsorptionpropertiesofdifferenttypesofplastics.Forthemorereliableresults,simultaneoustestsarerecommended.4TheresultsobtainedusingthemethodsdescribedinthisInternationalStandardareapplicabletomostplasticsbutarenotapplicabletocellularplastics,granulates,orpowderswhichcanshowadditionalabsorptionandcapillaryeffects.Plasticsexposedtomoistureundercontrolledconditionsfordefinedperiodsoftimeproviderelativecomparisonsbetweenthem.Thetestsdescribedfordeterminationofdiffusioncoefficientmaynotbeapplicabletoallplastics.Plasticsthatcannotretaintheirshapewhenimmersedinboilingwatershouldnotbecomparedusingmethod2in6.3.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:22P;A4
【正文语种】:英语