date:Oct 23, 2012
nitor the cumulative amount of time the label is exposed to temperature above its threshold.
When a temperature excursion occurs the blue dye, which is generally recognized as safe, melts and progresses through a window with clearly indicated time markers.
When temperature returns below the label's threshold the dye solidifies and stops moving.
This irreversible process allows the label to measure cumulative temperature abuse time above threshold temperature.
These labels provide traceable t