| 摘要 |
<p>Device for identifying and for measuring the occurring of interruptions in the freezing chain for a deep-frozen or frozen product, consisting in a label (1) made with water absorbent material and provided with a strip (3) made with a water soluble substance on its inside face (1b), said strip (3) being capable to modify its colour by means of a chemical reaction with liquid water. The label (1) is also provided with an impermeable film (4), in its whole surface except for a terminal portion (5), which is able to absorb liquid water and to allow its spreading toward the inside of the label (1).</p> |
