Designation:E1066/E1066M−19StandardPracticeforAmmoniaColorimetricLeakTesting1ThisstandardisissuedunderthefixeddesignationE1066/E1066M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thispracticecoversthetestingoflargesingle-anddouble-walledtanks,pressureandvacuumvessels,laminated,lined-ordouble-walledparts,complexpipingsystems,flexiblecontainers(suchasaircraftfueltanks),glass-to-metalsealsinhybridpackages,andsystemsthatinherentlycontainorwillcontainammonia(suchaslargetonnagerefrigerationsystemsandfertilizerstoragesystems).1.2Thismethodcanbeusedonpiping,valves,andcon-tainerswithwelded,fitted,orlaminatedsectionsthatcanbesealedattheirendsorbetweentheirouterandinnerwallsandthataredesignedforinternalpressuresof34.5kPa[5psig]orgreater.1.3Basicproceduresaredescribedbasedonthetypeofinspectionused.Theseproceduresshouldbelimitedtofindingleakageindicationsof4.5×10−12mol/s[1×10−7Stdcm3/s]2orlarger.1.4Units—ThevaluesstatedinStdcm3/sormol/saretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotnecessarilyexactequivalents;therefore,toensureconformancewiththestandard,eachsystemshallbeusedindependentlyoftheother,andvaluesfromthetwosystemsshallnotbecombined.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.(Formorespecificsafetyprecautionaryinformationsee7.4,8.2,9.4.1,and10.3.1).1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrad...
