The 3M Steamlox indicator gives you assurance of the steam sterilization process Its internal chemical indicators monitor all conditions necessary for steam sterilization inside packs for 121 or 134 gravity/ vacuumssisted steam sterilization process The device is equipped with flower indicator pattern that provides more information than a ass or failcolour interpretation; the sequential clockwise pattern of colour development also indicates two levels of insufficient exposure and one level of overexposure The three top indicator spots (numbers 1, 2 and 3) should turn from purple to green indicating that the items in the pack, peel pouch, unwrapped tray, or rigid container were exposed to sufficient steam sterilization conditions The failure of indicator spot number 3 to change from purple to green indicates insufficient exposure to steam sterilization conditions inside the pack The colour changes with indicator spots numbers 1, 2 and 4 provide information on the degree of insufficient or sufficient conditions of exposure These indicators come in a standard packing of 250 units per pack
