The testing of the high and low temperature test chamber shall be carried out according to the requirements of the relevant standards for visual inspection and electromechanical performance testing. The test samples shall be tested in the unpackaged, unpowered, ready-to-use state or other states specified in the standard, and the conditional test begins At the time, the temperature of the test sample should be the temperature of the test room. The test time at low and high temperatures depends on the heat capacity of the test sample. The test time is 3, 2, 1H, 30min, 10min. It is specified by the relevant standard, or the test time is not specified in the relevant standard. Time, it is 3h. (Note: The test time of 10 minutes is suitable for small test samples. In addition, in order to meet the requirements of high and low temperature test chamber standards, the thermal time constant of the test samples and the technical performance of the existing test chamber should be considered.) The temperature test in the low temperature box should be maintained for a specified time under the standard setting. The test sample is taken from the low temperature box and transferred to the high temperature box. The conversion time includes the time to take out and put it into another box, and the environment in the laboratory The pause time at temperature. After the test has been carried out for a specified period of time, if the next transition from low temperature to high temperature or from high temperature to low temperature cannot be started immediately (for example, overnight or weekend rest), the test sample can be kept in the low temperature box or high temperature box At the end of one cycle, the test sample shall be restored according to the standard. Recovery procedure: 1. After the conditional test is completed, the test sample is recovered under the standard atmospheric conditions of the test, and the time should be sufficient to achieve temperature stability. 2. For known types of test samples, the relevant standards may specify specific recovery times. Hyaluronic Acid Nose Reshaping Filling Shijiazhuang Asa Technology Co., Ltd. , https://www.hskinlift.com
Initial detection and test conditions of high and low temperature test chamber