The materials used in the salt spray test chamber should not affect the corrosion effect of the salt spray. The structure of the test chamber and the method of providing salt spray can be different, but the following conditions must be met:
a. The test chamber should be well vented to prevent the pressure from rising and to ensure a uniform distribution of salt spray. The end of the exhaust hole should be protected by wind to avoid causing strong airflow in the test chamber;
b. The conditions in the test chamber are maintained within the specified tolerance; the test conditions that the salt spray test chamber must meet
c. The test chamber should have a large enough volume to provide stable and uniform test conditions (not affected by turbulence), and these conditions are not affected by the sample during the test;
d. The condensate collected on the top, wall or other parts of the tank cannot drip onto the sample;
e. Salt spray cannot be sprayed directly on the sample.
For equipment and parts, the salt spray test chamber provides test conditions that are more in line with the actual situation and the evaluation method of individual samples. However, if in some cases, in order to ensure quality, the relevant specifications require individual samples to use the test method, the samples should be tested as part of the entire assembly or equipment together with the actual protective equipment (box, cover, jacket, etc.) .
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