| 摘要 |
The invention relates to a preservation indicator for frozen or refrigerated products. The indicator is made using a casing, for example in the shape of a phial (1) containing a liquid or a material whose freezing point is predetermined, which casing may optionally incorporate one or more pins and contribute to the shaping of the melting warning specimen and to its centring inside a leaktight and transparent box or protective case (2), itself arranged in the package to be monitored. <IMAGE>
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