Indica-tors use dots that clearly change color, from an unmistakable blue indicating a safe package, to a pink if levels rise during transport or storage. Measure RH levels of 10, 20, 30, 40, 50 and 60%.
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Sud-Chemie Performance Packaging: Humidity indicators
Humidial, a United Desiccants (Louisville, KY) member, introduces Desi Pak® humidity indicator cards. These measure the ambient humidity within a sealed package to detect damaging moisture.
Aug 31, 1998
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