ASTM D6980-17 Standard Test Method for Determination of Moisture in Plastics by Loss in Weight英文版

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1、DownloadFromhttp://bbs.infoeach.comThisinternationalstandardwasdevelopedinaccordancewithinternationallyrecognizedprinciplesonstandardizationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecommendationsissuedbytheWorldTradeOrganizationTe

2、chnicalBarrierstoTrade(TBT)Committee.Designation:D6980−17StandardTestMethodfor1DeterminationofMoistureinPlasticsbyLossinWeightThisstandardisissuedunderthefixeddesignationD6980;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,th

3、eyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*3.Terminology1.1Thistestmethodcoversthequantitativedetermination3.1Definitions—Thedefinitionsusedinthistestmethodareo

4、fmoisturebymeansoflossinweighttechnologydownto50inaccordancewithTerminologiesD883andD1600.mg/kg(50ppm)asitappliestomostplastics.3.2Symbols:1.2ThevaluesstatedinSIunitsaretoberegardedasthe3.2.1lift—theresultofconvectioncurrentscreatedduringstandard.theheatingofthespecimenraising

5、thesamplepanoffofitssupportfalselyindicatingamoistureloss.1.3Specimenstestedbythismethodwillbehot,usecaution3.2.1.1Discussion—Theeffectsofliftarecompensatedforwhenhandlingthemaftertestinghasbeencompleted.indifferentwaysbydifferentmanufacturers.1.4Thisstandarddoesnotpurporttoad

6、dressallofthesafetyconcerns,ifany,associatedwithitsuse.Itisthe4.SummaryofTestMethodresponsibilityoftheuserofthisstandardtoestablishappro-4.1Thespecimenisspreadontoasamplepanthatispriatesafetyandhealthpracticesanddeterminetheapplica-supportedonabalanceinaheatingchamberthathasbe

7、enbilityofregulatorylimitationspriortouse.preheatedandequilibratedtothespecifiedidletemperature.ItNOTE1—ThereisnoknownISOequivalenttothisstandard.isthenheatedtovaporizethemoisture.Theanalysisis1.5Thisinternationalstandardwasdevelopedinaccor-completedwhentheindicatedweightlossfa

8、llsbelowaratedancewithinternationallyrecognizedprinciplesonst