Designation:G188−05(Reapproved2011)StandardSpecificationforLeakDetectorSolutionsIntendedforUseonBrassesandOtherCopperAlloys1ThisstandardisissuedunderthefixeddesignationG188;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.INTRODUCTIONThisspecificationisintendedforpurchasingagentstouseinpurchaseordersforleakdetectionfluids(LDF).TheprimarypurposeofthespecificationistoassigntheresponsibilityforpassingSpecificationG186tothemanufacturersoftheseproducts.PreviouslytheonlycorrosionrelatedspecificationforLDFswasanobsoleteMilitarySpecificationthatrequiredthattheLDFnotexceedacorrosionrateof100mpyinatotalimmersiontest.TheproblemofstresscorrosioncrackingofbrasshasshownupasamajorcauseoffailuresincompressedgasserviceofbrasscomponentsresultingfromammoniausedtoadjustthepHofLDFs.Thisspecificationwillgivetheindustrialgasindustryameanstopreventthesefailuresinthefuture.1.Scope1.1Thisspecificationcoverstherequirementsforleakdetectorsolutionssuitableforuseincheckingtheleakageofvalves,pipes,fittings,joints,andsoforthofapressurizedgassystemfabricatedfrombrassesandothercopperalloys.1.2Thisspecificationdealswiththestresscorrosioncrack-ingaspectofleakdetectorsolutions.Theeffectiveness,chemical,physicalandmechanicalpropertiesofleakdetectorsolutionsarenotwithinthescopeofthisspecification.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2E300PracticeforSamplingIndustrialChemicalsG15TerminologyRelatingtoCorrosionandCorrosionTest-ing(Withdrawn2010)3G186TestMethodforDeterminingWhetherGas-Leak-DetectorFluidSolutionsCanCauseStressCorrosionCrackingofBrassAlloys3.Term...
