SAE AMS3646 Sheet, Polychlorotrifluoroethylene (Pctfe) Molded, Unplasticized
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来源:标准资料网
Product Code:SAE AMS3646
Title:Sheet, Polychlorotrifluoroethylene (Pctfe) Molded, Unplasticized
Issuing Committee:Ams P Polymeric Materials Committee
Scope:This specification covers a 100% homopolymer of polychlorotrifluoroethylene (PCTFE) in the form of molded sheet 0.250 inch (6.35 mm) and under in nominal thickness. Primarily for parts requiring chemical inertness and toughness up to 200 degrees C (392 degrees F) This product may also may be used at cryogenic temperatures.
【英文标准名称】:StandardTestMethodsforPlane-StrainFractureToughnessandStrainEnergyReleaseRateofPlasticMaterials
【原文标准名称】:塑料材料平面应变断裂韧性和应变能量释放率的标准试验方法
【标准号】:ASTMD5045-1999(2007)e1
【标准状态】:现行
【国别】:
【发布日期】:1999
【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】:D20.10
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:机械性能;断裂韧性;塑料;试验方法
【英文主题词】:critical-strainenergyreleaserate;energy-to-break;fracturetoughness;plane-strainfracturetoughness
【摘要】:p>1.1Thesetestmethodsaredesignedtocharacterizethetoughnessofplasticsintermsofthecritical-stress-intensityfactor,KIc,andtheenergyperunitareaofcracksurfaceorcriticalstrainenergyreleaserate,GIc,atfractureinitiation.1.2Twotestinggeometriesarecoveredbythesetestmethods,single-edge-notchbending(SENB)andcompacttension(CT).1.3Theschemeusedassumeslinearelasticbehaviorofthecrackedspecimen,socertainrestrictionsonlinearityoftheload-displacementdiagramareimposed.1.4Astate-of-planestrainatthecracktipisrequired.Specimenthicknessmustbesufficienttoensurethisstressstate.1.5Thecrackmustbesufficientlysharptoensurethataminimumvalueoftoughnessisobtained.1.6ThesignificanceofthesetestmethodsandmanyconditionsoftestingareidenticaltothoseofTestMethodE399,and,therefore,inmostcases,appearherewithmanysimilaritiestothemetalsstandard.However,certainconditionsandspecificationsnotcoveredinTestMethodE399,butimportantforplastics,areincluded.1.7ThisprotocolcoversthedeterminationofGIcaswell,whichisofparticularimportanceforplastics.1.8ThesetestmethodsgivegeneralinformationconcerningtherequirementsforKIcandGIctesting.AswithTestMethodE399,twoannexesareprovidedwhichgivethespecificrequirementsfortestingoftheSENBandCTgeometries.1.9Testdataobtainedbythesetestmethodsarerelevantandappropriateforuseinengineeringdesign.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ThereiscurrentlynoISOstandardthatduplicatesthesetestmethods.PendingISO/CD13586coverssimilartestingandreferencesthistestmethodfortestingconditions.
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:9P.;A4
【正文语种】:
【英文标准名称】:Testtaperecordsformagneticsoundrecordingandreproducingequipment
【原文标准名称】:磁带录音机试验用磁带
【标准号】:JISC5541-1971
【标准状态】:作废
【国别】:日本
【发布日期】:1971-04-01
【实施或试行日期】:1971-04-01
【发布单位】:日本工业标准调查会(JISC)
【起草单位】:Abolishment
【标准类型】:()
【标准水平】:()
【中文主题词】:试验;录音;试样;磁记录机;磁带;磁带录音机;磁性重放机
【英文主题词】:testspecimens;magnetictapes;taperecorders;magneticrecorders;magneticreproducers;soundrecording;testing
【摘要】:
【中国标准分类号】:G83
【国际标准分类号】:
【页数】:6P;A4
【正文语种】:日语
