The 3M™ Attest™ Vaporized Hydrogen Peroxide Tri-Metric Chemical Indicator 1348/1348E verifies that the stated values for the three (3) critical parameters of exposure time, temperature, and amount of vaporized hydrogen peroxide (VH2O2) have been achieved within a package or containment device (i.e., wrapped trays, rigid containers, sterilization pouches, and other types of packs) and/or at a specific location within the load or empty chamber. Upon exposure to vaporized hydrogen peroxide, the color of the coated indicator strip progressively changes from blue toward pink along the strip. The progression of the blue to pink color change along the indicator strip is visible through a window with marked “REJECT” and “ACCEPT” zones. The extent of the progression depends on exposure time, temperature, and amount of vaporized hydrogen peroxide.
As a Type 4 Chemical Indicator, the 3M™ Attest™ Vaporized Hydrogen Peroxide Tri-Metric Chemical Indicator 1348/1348E monitors sterilization conditions inside medical instrument packs in sterilizers and is compliant with ISO 11140-1:2014. It is also the first chemical indicator classified by the FDA as a multi-variable indicator for chemical vapor sterilization. The color-coded indicator strip starts off blue and gradually turns pink when exposed to vaporized hydrogen peroxide. Easy-to-read “REJECT” and “ACCEPT” zones assist the user with the interpretation of the device. The proprietary protective film helps to prevent the ink from smearing on surgical instruments and other surfaces. This innovative technology independently verifies that the stated values of exposure time, temperature and vaporized hydrogen peroxide concentration have been met.