Original source: Salt spray test chamber test sample placement requirements Edit: Lin frequency instrument
In order to obtain more accurate test data, the salt spray test chamber can obtain better test results. The placement of test samples should also have certain requirements and methods to be avoided according to the standard.
1) The test samples can be placed on different horizontal surfaces in the box, but it should be noted that they must not be in contact with the cabinet, nor can they be in contact with each other. The distance between the test samples should be kept at a free fall that does not affect the salt spray, and the droplets of salt spray accumulated on the test sample must not drip onto other test samples;
2) The test sample is placed in the salt spray test chamber and its test surface is face up. The salt spray generated when the test chamber is sprayed can be freely settled or deposited on the test surface of the sample, and the salt spray is prohibited from being directly sprayed. The test surface of the sample;
3) Under normal circumstances, the test samples of the test chambers cannot be placed in a flat state. In the requirements of the salt spray standard, it is mentioned that the test surface angle of the salt spray test sample should be 15°~30° with the vertical direction, as far as possible to 20°, for irregular samples (such as the entire workpiece). It should be achieved as much as possible in accordance with the above requirements;
4) The test sample is made of glass, plastic and other materials resistant to salt spray and acid-base corrosion. If the sample needs to be hung on the support, the material of the test sample needs to use cotton fiber, man-made fiber or For non-metallic materials such as other insulating materials, metal materials are strictly prohibited.
The placement of the test sample in the salt spray test chamber can reduce the error caused by the sample during the test. Therefore, the user should pay attention to whether the test sample is placed in accordance with the standard and whether it is placed according to the regulations.
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