Metal and Nonmetal National Mine Rescue Contest Rules

UndercastFanIf it is dam aged, leak ing, or destroyed,that par tic u lar con di tion isto be noted on the map be side thesym bol.Write out the con di tions of the fan,and any other in for ma tion in di catedon plac ard, on the map be side thesym bol.Fan with Write out the con di tions of the fan,Tubing tub ing, vent bag or plac ard on themap by sym bol.Brat ticeFramesBrat ticeCloth orBrat ticeMa te rialGasMix tureSmokeElon gatedOb jectTrackIn di cate any in for ma tion on plac ardon mine map be side sym bol.In di cate any in for ma tion on plac ardon mine map be side sym bol.Use for any plac ard in di cat ing a gasor a mix of gases in the mine atmosphere.Write out the gas name orsym bol and in di cate PPM or per cent(%) if shown on plac ard.Write out light, heavy, dense, or anyother in for ma tion in di cated on plac -ard, on map be side the sym bol.For use in in di cat ing pipe lines,ca bles, and other ob jects usu allyfound that are of any length. Do notuse for ca ble coiled, etc. Write outany other in for ma tion about ob jecton map be side sym bol.Write out any in for ma tion noted onplac ard on map be side sym bol.105