SAE AMS7909 Aluminum Beryllium, NNS Preforms Hot Isostatic Pressed 38Al - 62Be (Cancelled Dec 2010)
时间:2024-04-16 21:19:58 来源: 标准资料网 作者：标准资料网 阅读：8734
Product Code:SAE AMS7909
Title:Aluminum Beryllium, NNS Preforms Hot Isostatic Pressed 38Al - 62Be (Cancelled Dec 2010)
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:This specification covers aluminum-beryllium powders consolidated by hot isostatic pressing (HIP) into the form of blocks, blanks or shapes.
【英文标准名称】:DraftStandardDictionaryofElectromagneticCompatibility(EMC)includingElectromagneticEnvironmentalEffects(E3)
【原文标准名称】:含有电磁环境影响(E3)的电磁兼容性(EMC)的标准草案词典
【标准号】:ANSIC63.14-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【实施或试行日期】:
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:定义(术语);放电特性;电气工程;电磁脉冲;电磁试验;静电学;电磁兼容性(EMC);电磁脉冲(EMP);电信;术语
【英文主题词】:Definitions;Dischargecharacteristics;Electricalengineering;Electromagneticpulse;Electromagnetictests;Electrostatics;EMC;EMP;Telecommunications;Terminology
【摘要】:Thisstandardprovidesdefinitionsoftermsassociatedwithelectromagneticenvironmentaleffectsincludingelectromagneticcompatibility(EMC),electromagneticpulse(EMP),andelectrostaticdischarge(ESD).Inadditiontodefinitions,symbolsandabbreviationsareincluded.
【中国标准分类号】:L06
【国际标准分类号】:01_040_33;33_100_01
【页数】:
【正文语种】:英语
【英文标准名称】:StandardTestMethodsforLaboratoryCompactionCharacteristicsofSoilUsingStandardEffort(12400ft-lbf/ft3(600kN-m/m3))
【原文标准名称】:用标准作用力(12400ft-lbf/ft(600kN-m/m))测量土壤实验室压实特性的标准试验方法
【标准号】:ASTMD698-2007e1
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:D18.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:建筑;施工材料;含水量;土壤;测试
【英文主题词】:compactioncharacteristics;density;impactcompaction;laboratorytests;moisture-densitycurves;proctortest;soil;soilcompaction;standardeffort
【摘要】:1.1Thesetestmethodscoverlaboratorycompactionmethodsusedtodeterminetherelationshipbetweenmoldingwatercontentanddryunitweightofsoils(compactioncurve)compactedina4or6-in.(101.6or152.4-mm)diametermoldwitha5.50-lbf(24.5-N)rammerdroppedfromaheightof12.0in.(305mm)producingacompactiveeffortof12400ft-lbf/ft3(600kN-m/m3).Note1TheequipmentandproceduresaresimilarasthoseproposedbyR.R.Proctor(EngineeringNewsRecord-September7,1933)withthisonemajorexception:hisrammerblowswereappliedas"12inchfirmstrokes"insteadoffreefall,producingvariablecompactiveeffortdependingontheoperator,butprobablyintherange15000to25000ft-lbf/ft3(700to1200kN-m/m3).Thestandardefforttest(see)issometimesreferredtoastheProctorTest.1.1.1Soilsandsoil-aggregatemixturesaretoberegardedasnaturaloccurringfine-orcoarse-grainedsoils,orcompositesormixturesofnaturalsoils,ormixturesofnaturalandprocessedsoilsoraggregatessuchasgravelorcrushedrock.Hereafterreferredtoaseithersoilormaterial.1.2Thesetestmethodsapplyonlytosoils(materials)thathave30%orlessbymassofparticlesretainedonthe3/4-in.(19.0-mm)sieveandhavenotbeenpreviouslycompactedinthelaboratory;thatis,donotreusecompactedsoil.1.2.1Forrelationshipsbetweenunitweightsandmoldingwatercontentsofsoilswith30%orlessbymassofmaterialretainedonthe3/4-in.(19.0-mm)sievetounitweightsandmoldingwatercontentsofthefractionpassing3/4-in.(19.0-mm)sieve,seePracticeD4718.1.3Threealternativemethodsareprovided.Themethodusedshallbeasindicatedinthespecificationforthematerialbeingtested.Ifnomethodisspecified,thechoiceshouldbebasedonthematerialgradation.1.3.1MethodA:Mold4-in.(101.6-mm)diameter.MaterialPassingNo.4(4.75-mm)sieve.LayersThree.BlowsperLayer25.UsageMaybeusedif25%orless(seeSection1.4)bymassofthematerialisretainedontheNo.4(4.75-mm)sieve.OtherUsageIfthisgradationrequirementcannotbemet,thenMethodCmaybeused.1.3.2MethodBMold4-in.(101.6-mm)diameter.MaterialPassing3/8-in.(9.5-mm)sieve.LayersThree.BlowsperLayer25.UsageMaybeusedif25%orless(seeSection)bymassofthematerialisretainedonthe3/8-in.(9.5-mm)sieve.OtherUsageIfthisgradationrequirementcannotbemet,thenMethodCmaybeused.1.3.3MethodC-Mold6-in.(152.4-mm)diameter.MaterialPassing3/4-in.(19.0-mm)sieve.LayersThree.BlowsperLayer56.UsageMaybeusedif30%orless(seeSection1.4)bymassofthematerialisretainedonthe3/4-in.(19.0-mm)sieve.1.3.4The6-in.(152.4-mm)diametermoldshallnotbeusedwithMethodAorB.Note2Resultshavebeenfoundtovaryslightlywhenamaterialistestedatthesamecompactiveeffortindifferentsizemolds,withthesmallermoldsizetypicallyyieldinglargervaluesofdensity/unitweight(,pp.21+).1.4Ifthetestspecimencontainsmorethan5%bymassofoversizefraction(coarsefraction)andthematerialwillnotbeincludedinthetest,correctionsmustbemadetotheunitmassandmoldingwatercontentofthespecimenortotheappropriatefield-in-placedensitytestspecimenusingPracticeD4718.1.5Thistestmethodwillgenerallyproduceawell-definedmaximumdryunitweightfornon-freedrainingsoils.Ifthistestmethodisusedforfree-drainingsoilsthemaximumunitweightmaynotbewelldefined,andcanbelessthanobtainedusingTestMethodsD4253.1.6AllobservedandcalculatedvaluesshallconformtotheguidelinesforsignificantdigitsandroundingestablishedinPracticeD6026,unlesssupersededbythisst......
【中国标准分类号】:P13
【国际标准分类号】:93_020
【页数】:13P.;A4
【正文语种】: