Designation:D1292−15(Reapproved2021)´1StandardTestMethodforOdorinWater1ThisstandardisissuedunderthefixeddesignationD1292;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—TheWTOcaveatwasaddededitoriallyinDecember2021.1.Scope1.1Thistestmethod2coversthedeterminationoftheodor(thatis,thepropertythataffectsthesenseofsmell)ofwater.AsuggestedsystemforclassifyingodorsisgivenasAnnexA1.Thetestmethodisapplicabletothedeterminationofodorintensityintermsofodorintensityindexorthresholdodornumber.1.2Effluentsmaycarryamyriadofcompounds,difficulttomeasureindividually,whichcontributetoodorproblems.Combinationsofcompoundscancauseanodorintensityordevelopacharacteristicthatcannotbeanticipatedfromodorsoftheindividualsubstances.1.3Becauseofthevariationinhumansensitivity,highprecisionindeterminingodorintensityisnotpossible.Therewillnotalwaysbeagreementonodorcharacteristicsbyvarioustesters.Odoranalysisprovidesthetooltomeasurevariationinodorintensityatagivensamplingpoint.Thedegreeofvariationmayindicatethemagnitudeorimportanceofanodorproblem.Determiningthecauseofthevariationorthesourceoftheobjectionablecharacteristicmaydefinetheodorproblembetterthananalysisforindividualcompounds.1.4ThevaluesstatedinSIorinch-poundunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seethewarningstatementunder10.1.1.6Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternatio...
