DOD-I-85390 1980 Edition, May 21, 1980
INDICATOR, TIME-TEMPERATURE, CARD CHEMICALLY
Includes all amendments and changes through Notice 1, June 1, 1987
This specification covers a time-temperature controlled, chemically activated, irreversible indicator card for use with time-temperature sensitive, limited shelf life products.
The time-temperature indicator card covered by this specification shall be of the following classes.
Time-temperature Class Application characteristics 1 Freezer exposure 210 days at −20°C 2 Long term freezer exposure One year at −20°C (50 days at −5°C) (5 days at 25°C) 3 Ambient exposure 40 days at 25°C (20 days at 30°C) (3 days at 49°C) 4 Long term ambient exposure 70 days at 30°C (6 days at 49°C)
Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Engineering Specifications and Standards Department (Code 93), Naval Air Engineering Center, Lakehurst, New Jersey 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or letter.