[QUOTE=retrogamer15;2768017]What is the difference between 25 Â° C and 50% RH, using Eyring model and using Arrhenius model?[/QUOTE]
Please rephrase the question. Right now, this makes no sense.
If you are looking at ECMA tests:
Eyring model and Arrhenius model are two different tests.
Eyring assumes you are using controlled storage (25 degrees, 50 percent humidity)
Arrhenius model assumes you just put it in some uncontrolled environment (30 degrees, 80 percent humidity).
But both try to tell you how long discs will last. If you expect bad storage conditions, use results from the Arrhenius model. If you expect good storage conditions, use results from the Eyring model.