b'ofwhethersuchemployercreatedthehazardorhasthepowerto abateit.Inotherwords ,thepresentpolicyof"exposureto hazard"iscontinuedwithrespecttoreadilyapparenthazards . Toillustrate,anemployerwhohasneitherthedirectresponsibilitytoabateahazardnor~heabilitytoabatethehazardmay still becitedforsuchhazardif hepermitshisemployeestobe exposedtothehazard .Toavoidthecitation ,theemployershould takeactiontoseethatthehazardisabatedbythecontractor withresponsibili tytoabateandinthemeantimeshouldceaseor limithisworkonthejobsiteuntilthehazardisabated . Itseemstousthattheproposedguidelineswouldincreaseyoure xposuretocitations .Youarepresentlysubjecttocitationsonlyif your employeesareexposedtoahazardouscondition .Aswereadtheproposed guidelines,thispolicyisprettymuchcontinuedasis.However,youmay besubjecttocitationsevenif youremployeesarenotexposedi fOSHA determinesthatyouareresponsibleforabatingahazardousconditionto whichtheemployeesofanotheremployeronthemulti-employerjobsiteare exposed . Wewillkeepyoupostedondevelopments. TESTPERFORMANCE- NOTQUANTITIES! Forsomeyears ,specificationmanualsofbuilt-uproofingmanufacturers havespecifiedapplicationquantities ,asforexample,inter-plymoppingsof asphaltconsistingofapproximately25lbs.per100squaref eetofroofarea ,(withatolerancenottoexceed15% plusorminusinmorerecentspecmanuals). - Thesemanufacturerspecifiedquantiti eshavebeenastandardagainstwhich youhavebeenmeasuredbyowners,architects ,roof ingconsultantsandothers throughthevehicleoftestcuts .Ifforsomereasonarooffailureresults afteryouhavecomplet edapplication,testcutsarem andtheroofsamples ade areweighed.Ifthesamplesdonotcontaintheproperquantitiesbyweight, yougetblamedforthefailure,rightlyorwrongly . Asweseeit,thereareatleasttwobigproblemswiththetestcut-quantityanalysisprocedure .First,thequanti tiescontainedinasmall testcutoft heroofmembranearenotnecessarilyr epresentativeofquantitiesappliedovertheentireroof.Thepresentstateoftheroofingartis suchthatprecisequantitycontrolisnotpossible ,whetherapplicationis bymachineorhand.Nomatterhowsmalltheroofyouareapplying,itsarea isconsiderablygreaterthanasmal llfootbylf ootorthereaboutstest cutsample .Youdeali naveragesandattemptovertheareaoftheentire rooftomeetthequantitiesspecified . Secondly ,wequestionwhetherXlbs.perplyinter- plymoppingisthe properstandardagainstwhichyoushouldbemeasured .Who \' st osaywhether 10l bs .perply,15lbs.perp ly,25lbs .perply,or35lbs.perplywill resultinaroofofgreatestdurabilityandlongevity?Resultsofresearch bytheNa tionalBureauofStandardsindicatethattheoptimumamountof bitumenforbetween-the-plymappingsmaybelessthaniscurrentlydescribed inmostroofingspecifications .(Se eNBSReport9844.) ~ Upuntilnow,theonl ydefenseyouasroofingcontractorshadtothe testcutweightana lysisprocedurehasbeentomakeyourowntestcutsand'