SAE AMS4147 Aluminum Alloy, Forgings 5.6zn 2.5mg 1.6cu 0.23cr Solution Heat Treated, Stress Relieved By Compression, and
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Product Code:SAE AMS4147
Title:Aluminum Alloy, Forgings 5.6zn 2.5mg 1.6cu 0.23cr Solution Heat Treated, Stress Relieved By Compression, and Overaged
Issuing Committee:Ams D Nonferrous Alloys Committee
Scope:This specification covers an aluminum alloy in the form of die and hand forgings. These forgings have been used typically for parts requiring a combination of good strength and resistance to stress-corrosion cracking, and where good stability is required during machining, but usage is not limited to such applications.
【英文标准名称】:StandardTestMethodsforDeterminingDispersiveCharacteristicsofClayeySoilsbytheCrumbTest
【原文标准名称】:用团粒试验测定粘性土的色散特性的标准试验方法
【标准号】:ASTMD6572-2006
【标准状态】:现行
【国别】:
【发布日期】:2006
【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】:D18.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:测定;土壤;试验方法;试验
【英文主题词】:clay(dispersive);colloidalerodability;crumbtestmethod;dispersibility;dispersion;dispersiveclays;erosion
【摘要】:Thecrumbtestmethodprovidesasimple,quickmethodforfieldorlaboratoryidentificationofadispersiveclaysoil.Theinternalerosionfailuresofanumberofhomogeneousearthdams,erosionalongchannelorcanalbanks,andrainfallerosionofearthenstructureshavebeenattributedtocolloidalerosionalongcracksorotherflowchannelsformedinmassesofdispersiveclay(5).Thecrumbtestmethod,asoriginallydevelopedbyEmerson(6),wascalledtheaggregatecoherencetestandhadsevendifferentcategoriesofsoil-waterreactions.Sherard(5)latersimplifiedthetestbycombiningsomesoil-waterreactionssothatonlyfourcategories,orgrades,ofsoildispersionareobservedduringthetest.Thecrumbtestisarelativelyaccuratepositiveindicatorofthepresenceofdispersivepropertiesinasoil.Thecrumbtest,however,isnotacompletelyreliablenegativeindicatorthatsoilsarenotdispersive.Thecrumbtest,canseldomberelieduponasasoletestmethodfordeterminingthepresenceofdispersiveclays.Thedouble-hydrometertest(TestMethodD4221)andpinholetest(TestMethodD4647)aretestmethodsthatprovidevaluableadditionalinsightintotheprobabledispersivebehaviorofclaysoils.Note28212;Thequalityoftheresultproducedbythesetestmethodsisdependentonthecompetenceofthepersonnelperformingit,andthesuitabilityoftheequipmentandfacilitiesused.AgenciesthatmeetthecriteriaofPracticeD3740aregenerallyconsideredcapableofcompetentandobjectivetesting.UsersofthesetestmethodsarecautionedthatcompliancewithPracticeD3740doesnotinitselfensurereliabletesting.Reliabletestingdependsonseveralfactors;PracticeD3740providesameansofevaluatingsomeofthosefactors.1.1Thesetestmethodsprovideaqualitativeindicationofthenaturaldispersivecharacteristicsofclayeysoils.1.2Thesetestmethodsarenotapplicableforsoilswithlessthan12%fractionfinerthan0.005mmandwithaplasticityindexlessthanorequalto8.1.3Thecrumbtestmethodhassomelimitationsinitsusefulnessasanindicatorofdispersiveclay.Adispersivesoilmaysometimesgiveanondispersivereactioninthecrumbtest.Soilscontainingkaolinitewithknownfielddispersionproblemshaveshownnondispersivereactionsinthecrumbtest().However,ifthecrumbtestindicatesdispersion,thesoilisprobablydispersive.1.4Oven-driedsoilshouldnotbeusedtopreparecrumbtestspecimens,asirreversiblechangescouldoccurtothesoilpore-waterphysicochemicalpropertiesresponsiblefordispersion().1.5Thecrumbtestmethod,whileagoodquickindicationofdispersiveclay,shouldusuallyberuninconjunctionwithapinholetestandadoublehydrometertest,TestMethodsD4647andD4221,respectively.Note1Insomecases,theresultsofthepinhole,crumb,anddouble-hydrometertestmethodsmaydisagree.Crumbtestmethodsareabetterindicatorofdispersiveclaysthanofnondispersiveclays().1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:B11
【国际标准分类号】:13_080_20
【页数】:5P.;A4
【正文语种】:
基本信息
| 标准名称： | 进出口罐头食品检验规程 第8部分：包装 |
| 英文名称： | Rules for inspection of canned food for import and export -- Part 8: Packing |
| 中标分类： |
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| ICS分类： |
食品技术 >>
水果、蔬菜及其制品
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| 替代情况： | SN 0400.7-1995 |
| 发布部门： | 中华人民共和国国家质量监督检验检疫总局 |
| 发布日期： | 2005-09-30 |
| 实施日期： | 2006-05-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 提出单位： | 国家认证认可监督管理委员会 |
| 归口单位： | 国家认证认可监督管理委员会 |
| 起草单位： | 中华人民共和国上海出入境检验检疫总局 |
| 起草人： | 叶志平、秦永明、王冬、李有根 |
| 出版日期： | 1900-01-01 |
| 页数： | 8页 |
适用范围
本标准适用于罐头食品内外包装的检验。
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所属分类： 食品技术 水果 蔬菜及其制品
