Temperature Mapping study

Dear sir,

Please provide the details about the Vacuum Tray Dryer Temperature mapping study and remapping study acceptance criteria.
frequency of study, conditions.

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Please refer following WHO guideline,

Temperature mapping of storage areas, Supplement 8
Technical supplement to
WHO Technical Report Series, No. 961, 2011
Annex 9: Model guidance for the storage and transport of time- and
temperature-sensitive pharmaceutical products, January 2014 and August 2014 versions