ANSI/ASTM D5293-1999 冷起动模拟法测定30℃至50℃时发动机油表观粘度的试验方法(05.03)

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【英文标准名称】:Plastics-Determinationofrefractiveindex
【原文标准名称】:塑料反射指数的测定
【标准号】:ISO489-1999
【标准状态】:现行
【国别】:国际
【发布日期】:1999-04
【实施或试行日期】:
【发布单位】:国际标准化组织(IX-ISO)
【起草单位】:ISO/TC61
【标准类型】:()
【标准水平】:()
【中文主题词】:测定;浸渍试验;折射测量法;浸入试验;光学试验;塑料;折射指数;试验;试验;分析
【英文主题词】:Analysis;Determination;Determinationprocedures;Immersiontests;Immersiontests(corrosion);Materialstesting;Measuringtechniques;Mouldedparts;Opticaltests;Plasticfilms;Plastics;Refractiveindex;Refractometry;Testing
【摘要】:ThisInternationalStandardspecifiestwotestmethodsfordeterminingtherefractiveindexofplastics,namely:—MethodA:arefractometricmethodformeasuringtherefractiveindexofmouldedparts,castorextrudedsheetorfilm,bymeansofarefractometer.Itisapplicablenotonlytoisotropictransparent,translucent,colouredoropaquematerialsbutalsotoanisotropicmaterials.Themethodisrecommendedwhengreataccuracyisrequired.Itisnotapplicabletopowderedorgranulatedmaterial.—MethodB:animmersionmethod(makinguseoftheBeckelinephenomenon)fordeterminingtherefractiveindexofpowderedorgranulatedtransparentmaterialsbymeansofamicroscope.Monochromaticlightshould,ingeneral,beusedtoavoiddispersioneffects.TheaccuracyofthismethodisaboutthesameasthatofmethodA.Itisapplicabletoisotropictranslucent,colouredmaterialsbutisnotapplicabletoopaquematerialsnortoanisotropicmaterials.NOTE1Therefractiveindexisafundamentalpropertywhichcanbeusedforcheckingpurityandcomposition,fortheidentificationofmaterialsandforthedesignofopticalparts.Thechangeinrefractiveindexwithtemperaturemaygiveanindicationoftransitionpointsofmaterials.NOTE2TheaccuracyofmethodBisapproximatelythesameasthatofmethodAwhenanexperiencedoperatorusesthemethodwithextremecare(seeclause7).
【中国标准分类号】:G31
【国际标准分类号】:83_080_01
【页数】:11P;A4
【正文语种】:英语


【英文标准名称】:StandardPracticeforDeterminingtheEffectofOverbakingonOrganicCoatings
【原文标准名称】:测定烘焙过度对有机涂层的影响的标准实施规程
【标准号】:ASTMD2454-2008
【标准状态】:现行
【国别】:美国
【发布日期】:2008
【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】:D01.27
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:
【英文主题词】:Exposuretests--organiccoatings;Bakedpaints/relatedcoatings;Lacquer;Organiccoatings;Overbaking(ofpaints/relatedcoatings)
【摘要】:Mostcoatingsaredesignedforaspecificbakingtimeandtemperature.Foravarietyofreasons(linestoppages,reroutingbackthroughovens,ovenoverheating,etc.)theprescribedtimeortemperature,orboth,ofthebakeisoftenexceeded.Thispracticehasbeenfoundtobeusefulinevaluatingtheeffectsofoverbakesoncoatings.1.1Thispracticecoversthedeterminationofthetime-temperatureeffectofoverbakingonthephysicalandchemicalpropertiesoforganiccoatings.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityofwhoeverusesthisstandardtoconsultandestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecifichazardstatementsaregiveninSection7.
【中国标准分类号】:A29
【国际标准分类号】:87_020
【页数】:3P.;A4
【正文语种】:英语