Time-temperature integrating indicator
作者： John A. Spevacek
DOI:
关键词:
摘要: The present invention provides a time-temperature integrating indicator having an amorphous material in operable contact with porous matrix, wherein the only migrates into matrix at or above predetermined temperature. Use of simplifies monitoring cumulative temperature exposure product because no additional actuation step is required. especially useful perishable for short period time abusive
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