The national standard GB/T2423.18-2000 specifies that electronic and electrical products usually have the following requirements for the test equipment used in the alternating salt spray test: (1) Salt spray test chamber The salt spray test chamber must be made of materials resistant to salt spray corrosion and without affecting the test results. (Note: At present, the first-class suppliers in the market use PP salt spray tanks) The structure of the salt spray box, including the method of producing salt spray, should meet the following requirements: a. The conditions of the salt spray box should reach the specified range. b. The salt spray box should have a large enough volume and maintain a uniform and constant test condition (not affected by turbulence), and the test conditions are not affected by the test sample. c. Salt spray should not be sprayed directly onto the test sample during the test. d. Drops accumulated in the wall of the salt spray box or other parts shall not drip on the test sample. e. In order to prevent the pressure inside the box from rising and keep the salt spray evenly distributed, the salt spray box should have proper venting holes, and the pressure of the vent hole should be prevented from rising in the tank and the salt spray should be evenly distributed. Have proper venting holes and prevent venting holes from creating a strong air flow inside the box. Below I will explain the requirements for sprayers and humid heat tanks during the salt spray test.
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