1. A barcoded quality indicator operative to provide a machine-readable indication of exceedance of at least one threshold following actuation thereof, said indicator comprising: a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one threshold; at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one threshold; a coloring agent located at a first location on said indicator; a coloring agent pathway operative, following actuation of said quality indicator, to allow said coloring agent to move from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable; an actuator element operative to actuate said quality indicator upon removal thereof from said quality indicator; and a sealing element operative to seal said coloring agent pathway subsequent to removal of said actuator element, said sealing element comprising a foldable sealing tab operative to prevent damage to said barcoded quality indicator.
1. A barcoded quality indicator operative to provide a machine-readable indication of exceedance of at least one threshold following actuation thereof, said indicator comprising: a first barcode including at least one first colorable area, said first barcode being machine-readable before exceedance of said at least one threshold; at least a second barcode including at least one second colorable area, said second barcode not being machine-readable before exceedance of said at least one threshold; a coloring agent located at a first location on said indicator; a coloring agent pathway operative, following actuation of said quality indicator, to allow said coloring agent to move from said first location to said first and second colorable areas simultaneously for simultaneous coloring thereof upon exceedance of said threshold, thereby causing said first barcode to become unreadable and at the same time causing said second barcode to become machine-readable; an actuator element operative to actuate said quality indicator upon removal thereof from said quality indicator; and a sealing element operative to seal said coloring agent pathway subsequent to removal of said actuator element, said sealing element comprising a foldable sealing tab operative to prevent damage to said barcoded quality indicator. 5. A barcoded quality indicator according to claim 1 and wherein said quality indicator also comprises a release layer which is adhered to an adhesive back surface of said quality indicator.