Designation:E2619/E2619M−09´1AnAmericanNationalStandardStandardPracticeforMeasuringandCalculatingBuildingLossFeaturesThatTakeUpFloorAreainBuildings1ThisstandardisissuedunderthefixeddesignationE2619/E2619M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ε1NOTE—UnitsinformationanddesignationwascorrectededitoriallyinApril2009.1.Scope1.1Thispracticespecifieshowtomeasurecertaincharac-teristicsofabuilding,knownasbuildinglossfeatures,insidetheexteriorgrossareaofafloorandhowtocalculatetheamountofactualandeffectivefloorareathatwillbenotbeavailablefortheplacementofpeople’sworkplaces,furniture,equipment,orforcirculation,ifusingstandardfurnishingsandorthogonalfurnituresystems.1.2Thispracticecanbeusedtospecifyaperformancerequirementtolimittheamountoffloorareathatmaybetakenupbybuildinglossfeatures.1.3Thispracticecanbeusedtoassesshowwelladesign(s)foranofficefacilitymeetsaperformancerequirementregard-ingfloorarea.1.4Thispracticecanbeusedtoassesshowwellacon-structedofficebuildinghasmetaperformancerequirementregardingfloorarea.1.5Thispracticeisnotintendedforandnotsuitableforuseforregulatorypurposes,firehazardassessment,andfireriskassessment.1.6Usersofthispracticeshouldrecognizethat,insomesituations,theamountofcertainactualandeffectivefloorarealossesmaybemitigatedtosomedegreeatsomecostbycustom-tailoringspacesandcreatingspeciallyfittedfurnish-ingsandcarpentrytogetsomevaluefromspacewhichwouldnototherwisebeusable.1.7ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistherespon...
