Handling
Storage conditions and supplier documentation
How stated conditions become controlled and recorded laboratory practice.
Terms such as “cool” or “ambient” need numerical interpretation from the material documentation. Temperature range, protection from light or moisture, and…
02Recording and mappingA refrigerator set point does not prove uniformity. Mapping identifies warm and cold locations, while calibrated loggers monitor actual conditions. Alarm…
03Excursion and decisionWhen an excursion is recorded, material is segregated until duration, maximum or minimum temperature and available stability evidence are assessed. The…
Defined conditions rather than vague terms
Terms such as “cool” or “ambient” need numerical interpretation from the material documentation. Temperature range, protection from light or moisture, and any acceptable excursion duration should be known before storage.
Recording and mapping
A refrigerator set point does not prove uniformity. Mapping identifies warm and cold locations, while calibrated loggers monitor actual conditions. Alarm limits and review frequency are defined in a procedure.
Excursion and decision
When an excursion is recorded, material is segregated until duration, maximum or minimum temperature and available stability evidence are assessed. The use-or-reject decision is documented; simply returning to the correct temperature does not erase the event.
LABORATORY APPLICATION
Turning the principle into an auditable record
For each storage location retain limits, sensor map, calibration status, access and power-failure plan. For each material retain stated condition, receipt date, location and movement history. Linking these records enables meaningful excursion assessment.
PRIMARY & OFFICIAL SOURCES
Sources and further reading
COMMON QUESTIONS
Questions specific to this topic
What should a storage condition state?
Range, duration, environmental protection, relevant form and packaging, together with the source of the instruction.
Why map a storage area?
To identify locations with different thermal behaviour and place sensors representatively.
Is a receipt reading enough?
Not always. Route, duration, packaging and assessment limits provide necessary context.