4. Storage and Transportation
4.1 Storage
Radiosondes must be stored and used in accordance with applicable instructions, the User
Guide, and
specifications issued by Vaisala.
Radiosondes must be kept in their original packaging (unopened vacuum envelopes) in a
dry, ventilated indoor storage space, and within the following key environmental limits (ref.
IEC 60721-3-1 class 1K2):
• Temperature +5 °C to +40°C
• Relative humidity below 85%
The unwinder string is not resistant to prolonged exposure to sunlight. Store
the unwinders in their original unopened packages.
CAUTION!
4.2 Transportation
Vaisala radiosondes must be transported in their original shipping packages.These packages
are designed and built to survive and protect their contents in the environmental conditions
described herein with the terminology and standards per standard IEC 60721-3-2. The
transportation of radiosondes requires climatic conditions 2K2 and mechanical conditions
2M1 of this standard:
• Transportation in weather-protected conditions.
• Transportation using conventional means (car, truck, and / or aircraft),with free fall not
exceeding 0.25 m in any circumstances.
• Following additional markings on packaging.
4.2.1
Transporting RS41 Radiosondes with Lithium Batteries
RS41 radiosondes with lithium batteries are classified as:
• UN 3091 Lithium metal batteries contained in equipment
Consignments must be packed, labeled, and documented according to the IATA packing
instructions.
When transporting the radiosondes with lithium batteries, take the following requirements
into account:
• The package must display a lithium battery handling label, similar to the one shown in
the following example. The original radiosonde shipping package must be used for
transport, and it already has the lithium battery handling label.
Chapter 4 – Storage and Transportation
33
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