Stability chamber validation

What is the validation time of stability chamber & frequency of recording of temp & humidity (time interval).
Pls suggest any reference guidline.

Qualification shall be conducted as per V model approach.
PQ test shall cover:

  1. Temperature and RH mapping for 72 hours.
  2. Door opening challenge study.
  3. Power failure study
  4. Recovery study.

Reference WHO guideline
Health Canada (Guide-0069)
Guidelines for Temperature
Control of Drug Products During
Storage and Transportation

EU European Commission Annex
15 Guide to Good Manufacturing

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