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1、TIS30-2542(1999)UnofficialTranslationThaiindustrialstandardForNitrousOxideforMedicalUse1.Scope1.1Thisstandardspecifiesrequirementsandanalysisofnitrousoxideformedicaluse.2.DefinitionForthepurposeofthisstandard,thefollowingdefinitionapplies.2.1NITROUSOXIDEFORMEDICALUSE,hereinafterrefer
2、redtoas“NITROUSOXIDE”:Dinitrogenmonoxideingaseousorliquidformwithcharacteristicodour,beingnoncombustiblebutsupportcombustion,havingchemicalformulaasN2O,intendedformedicaluse.3.Requirements3.1GeneralrequirementNitrousoxideshallbecolourless.3.2OtherrequirementsNitrousoxideshallbeasspec
3、ifiedintable1.1TIS30-2542(1999)Table1Otherrequirements(clause3.2)AnalysisItemCharacteristicrequirementreferringtoclause1AcidityoralkalinityShallpassthetest7.12HalidesandhydrogensulphideShallpassthetest7.23Purity,%byvolume,min.99.07.334Moisture,mg/dm,max.0.127.4335Carbondioxide,mm/dm,
4、max.3007.5336Carbonmonoxide,mm/dm,max.107.6337Nitricoxide,mm/dm,max.17.7338Nitrogendioxide,mm/dm,max.17.84.Containerandpackaging4.1Containersfornitrousoxideshallbecleanandshallbeintendedfornitrousoxideuseonly.4.2ContainersintheformofcylindershallbeinaccordancewithTIS356,Standardforpr
5、essuregascylinders,seamlesstype.Incaseofusedcylinders,theyshallbetestedinaccordancewithTIS358,Standardformaintenanceanduseofcompressedgascylinders.4.3Thecolourofnitrousoxidecylindershallbefrenchbluethroughoutitsbody,neckandshoulderinaccordancewithTIS87,Standardforidentificationcolour
6、sandmarkingformedicalgascylinders.4.4CylinderconnectorsshallbeinaccordancewithTIS1095,Standardformedicalgascylindervalveconnection.4.5Containersforliquidnitrousoxideshallbeinaccordancewithindustrialstandardforliquefiedgasstoragetank.(wherethestandardhasnotbeenpromulgated,itshallbesub
7、jectedtotheagreementbetweenthepurchaserandthemanufacturer).2TIS30-2542(1999)5.Markingandlabelling5.1Eitheroneachcontainerortheattachedlabelshallatleastbearnumber,letterormarkindicatinglegiblyandclearlythefollowinginformation:5.1.1Incaseofcylinder(1)Awhitecrossinawhitecirclemarkedatth
8、eshoulder,an
