"Deformation" of the low temperature test chamber

After the test sample has been subjected to a severe low-temperature test, its shape may change temporarily. However, it's usually possible to restore the sample to its original condition. Here are some effective methods to achieve this: First, the test samples should be allowed to return to standard atmospheric conditions and be left to thaw completely. This process ensures that any internal stresses caused by the cold are released gradually. Second, to remove any condensation or water droplets that may have formed on the surface, you can gently shake the sample by hand or use a stream of air at room temperature for a short period. This helps in eliminating moisture without causing damage. Third, if the specifications require it, the sample should be powered on or loaded during the recovery phase, and its performance should be continuously monitored. This step is crucial for verifying that the sample functions properly after exposure to extreme cold. Fourth, if standard atmospheric conditions are not suitable for the specific test sample, the relevant standards might outline alternative recovery procedures. Always refer to the applicable guidelines for precise instructions. Lastly, when recovering under standard atmospheric conditions, make sure the time is sufficient for the sample to reach thermal stability—ideally for at least one hour. If multiple samples are being tested simultaneously, use the longest required recovery time. For example, if two hours are needed, all measurements must be completed before the end of that period to ensure accurate results. By following these steps carefully, you can effectively recover the test samples and maintain the integrity of your testing process.

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