The continuity of the salt spray test chamber:
During the entire test period of the salt spray test chamber, it is best not to interrupt the test. If the test process needs to be interrupted for sampling inspection, the interruption time should be as short as possible. If the test process needs to be interrupted for a long time, the sample should be processed as follows. In the test, remove the sample from the salt spray test chamber and process it in the manner specified in Chapter 10 of GB / T 10125-1997, and then store it in a desiccator until the test is restarted. In method B, remove it from the salt spray test chamber Take out the sample, dry it, and store it in a desiccator until the test restarts. During the storage period, be careful not to remove the deposits and corrosion products on the surface of the sample. The accumulation of salt affects the corrosion resistance and do not clean the sample.
The test period of the salt spray test box:
The test period should be determined according to the relevant standards of the material or product being tested. If not specified, the test period can be defined by the user. The recommended test period is as follows:
Method A: 3 cycles (24H), 6 cycles (48H), 12 cycles (96H), 30 cycles (240H), 45 cycles (360H), 60 cycles (480H), 90 cycles (720H) ), 180 cycles (1440H)
Method B: 12 ​​cycles (96H), 24 cycles (192H), 36 cycles (288H), 60 cycles (480H), 96 cycles (768H), 192 cycles (1536H)
Attachment: Sample handling after the test
After the test, remove the sample from the salt spray test box. In order to reduce the shedding of corrosion products, the sample should be naturally dried before washing 0.5 ℃ h-1h, and then gently in clean running water with a temperature not higher than 40 ℃ Immerse the sample to remove the residual salt solution on the surface of the sample, and then immediately blow dry with air with a pressure not exceeding 200KPa at a distance of about 300mm from the sample (if it is necessary to remove the corrosion products on the surface of the sample to evaluate the change in sample quality, GB can be used / T 16545)
The continuity and periodicity of the salt spray test chamber
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