SJ 20880-2003 军用信息传送安全标记
作者:标准资料网 时间:2024-05-19 10:07:33 浏览:8334
来源:标准资料网
基本信息
| 标准名称： | 军用信息传送安全标记 |
| 英文名称： | Security label for the military information transfer |
| 中标分类： |
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| ICS分类： |
信息技术、办公机械设备 >>
开放系统互连(OSI)
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| 发布日期： | 2003-12-15 |
| 实施日期： | 2004-03-01 |
| 首发日期： | 1900-01-01 |
| 作废日期： | 1900-01-01 |
| 出版社： | 工业电子出版社 |
| 出版日期： | 2005-02-11 |
| 页数： | 14页 |
适用范围
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前言
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目录
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引用标准
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所属分类： 信息技术 办公机械设备 开放系统互连(OSI)
Product Code:SAE AMS4987
Title:Titanium Alloy, Forgings 10v 2fe 3al, Consumable Electrode Melted, Single Solution Heat Treated and Overaged, 140 Ksi (965 Mpa) Tensile Strength
Issuing Committee:Ams G Titanium And Refractory Metals Committee
Scope:This specification covers a titanium alloy in the form of forgings under 4.0 inches (102 mm) in nominal cross-sectional thickness and of forging stock.【英文标准名称】:StandardTestMethodforConductingCyclicPotentiodynamicPolarizationMeasurementsforLocalizedCorrosionSusceptibilityofIron-,Nickel-,orCobalt-BasedAlloys
【原文标准名称】:铁镍钴基合金的局部腐蚀敏感性的循环动电势极化强度的标准试验方法
【标准号】:ASTMG61-1986(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1986
【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】:G01.11
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Cobaltalloys;Crevicecorrosion;Cycliccorrosiontesting;Cyclicpotentiodynamicpolarizationmeasurement;Nickel-ironalloy;Polarizationresistance;Potentiodynamicanodicpolarizationmeasurements;Stainlesssteel(corrosiontesting)
【摘要】:Anindicationofthesusceptibilitytoinitiationoflocalizedcorrosioninthistestmethodisgivenbythepotentialatwhichtheanodiccurrentincreasesrapidly.Themorenoblethispotential,obtainedatafixedscanrateinthistest,thelesssusceptibleisthealloytoinitiationoflocalizedcorrosion.Theresultsofthistestarenotintendedtocorrelateinaquantitativemannerwiththerateofpropagationthatonemightobserveinservicewhenlocalizedcorrosionoccurs.Ingeneral,onceinitiated,localizedcorrosioncanpropagateatsomepotentialmoreelectropositivethanthatatwhichthehysteresisloopiscompleted.Inthistestmethod,thepotentialatwhichthehysteresisloopiscompletedisdeterminedatafixedscanrate.Inthesecases,themoreelectropositivethepotentialatwhichthehysteresisloopiscompletedthelesslikelyitisthatlocalizedcorrosionwilloccur.Iffollowed,thistestmethodwillprovidecyclicpotentiodynamicanodicpolarizationmeasurementsthatwillreproducedatadevelopedatothertimesinotherlaboratoriesusingthistestmethodforthetwospecifiedalloysdiscussedin3.4.Theprocedureisusedforiron-,nickel-,orcobalt-basedalloysinachlorideenvironment.Astandardpotentiodynamicpolarizationplotisincluded.Thesereferencedataarebasedontheresultsfromfivedifferentlaboratoriesthatfollowedthestandardprocedure,usingspecificalloysofType304stainlesssteel,UNSS30400andAlloyC-276,UNSN10276.Curvesareincludedwhichhavebeenconstructedusingstatisticalanalysistoindicatetheacceptablerangeofpolarizationcurves.Theavailabilityofastandardtestmethod,standardmaterial,andstandardplotsshouldmakeiteasyforaninvestigatortocheckhistechniquestoevaluatesusceptibilitytolocalizedcorrosion.1.1Thistestmethodcoversaprocedureforconductingcyclicpotentiodynamicpolarizationmeasurementstodeterminerelativesusceptibilitytolocalizedcorrosion(pittingandcrevicecorrosion)foriron-,nickel-,orcobalt-basedalloysinachlorideenvironment.Thistestmethodalsodescribesanexperimentalprocedurewhichcanbeusedtocheckone''sexperimentaltechniqueandinstrumentation.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H25
【国际标准分类号】:77_060
【页数】:5P.;A4
【正文语种】:英语
