DIN ISO 11040-3-1993 带药注射器.牙科局部麻醉瓶用铅盖

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【英文标准名称】:StandardTestMethodforMeasuringAbrasionUsingtheDrySand/RubberWheelApparatus
【原文标准名称】:用干砂/橡胶轮装置测定磨蚀的标准试验方法
【标准号】:ASTMG65-2004
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:G02.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;工艺;磨损;磨蚀;金属;磨蚀试验
【英文主题词】:abrasionresistance-metals/metallicmaterials;drysand/rubberwheeltest;metalsandmetallicmaterials;rubberwheeltest;resistanceofmetallicmaterialstoscratchingabrasion,bydry;Sand/RubberWheeltest
【摘要】:Theseverityofabrasivewearinanysystemwilldependupontheabrasiveparticlesize,shape,andhardness,themagnitudeofthestressimposedbytheparticle,andthefrequencyofcontactoftheabrasiveparticle.Inthispracticetheseconditionsarestandardizedtodevelopauniformconditionofwearwhichhasbeenreferredtoasscratchingabrasion(1and2).Thevalueofthepracticeliesinpredictingtherelativerankingofvariousmaterialsofconstructioninanabrasiveenvironment.Sincethepracticedoesnotattempttoduplicatealloftheprocessconditions(abrasivesize,shape,pressure,impact,orcorrosiveelements),itshouldnotbeusedtopredicttheexactresistanceofagivenmaterialinaspecificenvironment.Itsvalueliesinpredictingtherankingofmaterialsinasimilarrelativeorderofmeritaswouldoccurinanabrasiveenvironment.Volumelossdataobtainedfromtestmaterialswhoselivesareunknowninaspecificabrasiveenvironmentmay,however,becomparedwithtestdataobtainedfromamaterialwhoselifeisknowninthesameenvironment.Thecomparisonwillprovideageneralindicationoftheworthoftheunknownmaterialsifabrasionisthepredominantfactorcausingdeteriorationofthematerials.1.1Thistestmethodcoverslaboratoryproceduresfordeterminingtheresistanceofmetallicmaterialstoscratchingabrasionbymeansofthedrysand/rubberwheeltest.Itistheintentofthistestmethodtoproducedatathatwillreproduciblyrankmaterialsintheirresistancetoscratchingabrasionunderaspecifiedsetofconditions.1.2Abrasiontestresultsarereportedasvolumelossincubicmillimetresfortheparticulartestprocedurespecified.Materialsofhigherabrasionresistancewillhavealowervolumeloss.Note1Inordertoattainuniformityamonglaboratories,itistheintentofthistestmethodtorequirethatvolumelossduetoabrasionbereportedonlyinthemetricsystemascubicmillimetres.1mm3=6.102105in3.1.3Thistestmethodcoversfiverecommendedprocedureswhichareappropriateforspecificdegreesofwearresistanceorthicknessesofthetestmaterial.1.3.1ProcedureAThisisarelativelyseveretestwhichwillrankmetallicmaterialsonawidevolumelossscalefromlowtoextremeabrasionresistance.Itisparticularlyusefulinrankingmaterialsofmediumtoextremeabrasionresistance.1.3.2ProcedureBAshort-termvariationofProcedureA.Itmaybeusedforhighlyabrasiveresistantmaterialsbutisparticularlyusefulintherankingofmedium-andlow-abrasive-resistantmaterials.ProcedureBshouldbeusedwhenthevolume-lossvaluesdevelopedbyProcedureAexceeds100mm3.1.3.3ProcedureCAshort-termvariationofProcedureAforuseonthincoatings.1.3.4ProcedureDThisisalighterloadvariationofProcedureAwhichisparticularlyusefulinrankingmaterialsoflow-abrasionresistance.ItisalsousedinrankingmaterialsofaspecificgenerictypeormaterialswhichwouldbeverycloseinthevolumelossratesasdevelopedbyProcedureA.1.3.5ProcedureEAshort-termvariationofProcedureBthatisusefulintherankingofmaterialswithmedium-orlow-abrasionresistance.Thisstandarddoesnotpurporttoaddressthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:J04
【国际标准分类号】:17_040_20
【页数】:12P.;A4
【正文语种】:

标准名称：	氨冷装置用立式冷凝器 型式与基本参数
中标分类：	机械 >> 通用机械与设备 >> 制冷设备
替代情况：	被JB/T 7658.17-95代替
发布日期：
实施日期：	1992-07-01
首发日期：
作废日期：	1996-07-01
出版日期：

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