ANORDNING FOR TEMPERATURINDIKERING

摘要

A device capable of indicating the time/temperature history of a frozen product, comprises a strained article of elastomeric material having a glass/rubber transition temperature above the storage temperature of the frozen article and having the property of relaxing over a temperature range below the glass/rubber transition temperature at a rate which is dependent on the temperature, and an indicator for indicating the amount of relaxation of the article on change of temperature through the glass/rubber transition temperature.