Hello! I was performing a re-qualification on a stability unit ( Temp-25 +/- 2C, Humidity 60% +/- 5%) and experienced a few humidity excursions. There were three different locations that exceeded specified parameters the values were: 68.5, 78.3 and 74.5% and each lasted only 15 minutes. They occurred in the middle of the night sporadically and can’t be attributed to opening the door.
I have been told in the past it was defended based on using the average humidity however, I was unsure if there were specific guidelines for humidity excursions that I could read.
Thank you in advance!