It is important to store the radiosonde balloons correctly if they will be used after several months of storage.
To store the balloons correctly:
- Restrict the balloon stock to the minimum. Prefer frequent deliveries over purchases in large quantities with consequential long storage periods.
- To avoid the use of balloons which have been stored for a long time, use balloons always in the order of their date of manufacture.
- Store the balloons away from direct sunlight and, if possible, in the dark.
- Never store balloons close to any source of heat or ozone.
- Keep all the balloons in their original packing until required for their preflight preparations.