b'TECH TALK alsoinenclosedareas,whichreopen the Occupational Exposure would include garages and manytoRespirableCrystallineSilicarul-other partially enclosed locations. inginlate2018,TileCouncilof ManytasksincludeonlyoneNorthAmerica(TCNA)staffmet type of engineering control, oftenwithOSHAtodiscussthedetails water-based.Insomeinstances,ofthisupcomingaction.TCNAs vacuum-basedcontrolsarecur- understandingisthatOSHAwill rently available but have not beenbe looking for at least two types of included in Table 1. changes to Table 1:SometaskslimitthesizeoftheNewadditions.Submittalscan blades that can be used. includeproposedcategories, In addition, there are some com- engineeringcontrols,andPPE mon activities that are not includedrequirements (for example, if sup-in Table 1, such as: portedbydata,mortarmixing Mixing mortar, self-leveling under- witha300-rpmdrillequipped layment(SLU),andothersilica- with a mixing blade, adding water containing materials using a vari- before powder, and without PPE if ety of powered equipment. under four hours per day).Shot blasting for fl oor preparation. Enhancedequipmentrequire-ments. Industry can propose new Opportunity for changesengineeringcontrolrequirements to table 1 for tasks already on Table 1, which After the initial announcement tocouldchangethePPErequire-Excerpt from Table 1 showing exposure control methods required for stationary masonry saws. 80 TileLetter | August 2019'