ASTM D3366-1995(2003)e1 熔融状态下和加热后顺酐和苯酐颜色的试验方法(铂-钴比例)

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【英文标准名称】:StandardTestMethodforColorofMaleicAnhydrideandPhthalicAnhydrideintheMoltenStateandAfterHeating(Platinum-CobaltScale)
【原文标准名称】:熔融状态下和加热后顺酐和苯酐颜色的试验方法(铂-钴比例)
【标准号】:ASTMD3366-1995(2003)e1
【标准状态】:现行
【国别】:
【发布日期】:1995
【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】:D16.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:芳族化合物;油性涂料;溶剂;试验;颜色;芳烃;顺式丁烯二酸酐;邻苯二甲酸酐;染色试验;涂料
【英文主题词】:maleicanhydride;phthalicanhydride;platinum-colbaltcolor
【摘要】:Thecolorofmaleicanhydrideandphthalicanhydridecanbeanindicationofthepurityofthesematerials.Highcolorsnormallyindicatecontamination.1.1Thistestmethodcoversthedeterminationofthevisualmeasurementofthecolorofmaleicandphthalicanhydridemeltbeforeandafterprolongedheatingunderspecifiedconditionsoftimeandtemperature.Colorvaluesareexpressedintermsofplatinum-cobaltstandards.Thistestmethodcoverstherange0to100colorstandardnumbers.1.2Thefollowingappliestoallspecifiedlimitsinthisstandard:forpurposesofdeterminingconformancewiththisstandard,anobservedvalueoracalculatedvalueshallberoundedof"tothenearestunit"inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.ForspecifichazardstatementsseeSection7.
【中国标准分类号】:G17
【国际标准分类号】:71_080_50
【页数】:3P.;A4
【正文语种】: