Preparation of the salt spray solution in the salt spray corrosion test chamber

A wide range of salt spray corrosion test chamber models and application areas make customers feel insecure in the strict preparation of solution tests. Beijing Hengtai Fengke now gives examples of the test operation of some salt spray corrosion test chambers:
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First: Preparation of copper-accelerated acetic acid/salt spray solution in the salt spray chamber br /The first step is to add the chemically pure sodium chloride solution according to GB1266 into the third-class water according to GB6682 with a concentration of (50±10). g/L In the second step, add reagent grade copper dichloride (CuCl221120) to 3.8 liters of brine to dissolve and mix thoroughly. In the third step, the pH of the solution is adjusted to a range of 3.1 to 3.3 with acetic acid and the pH is measured from the collected salt spray samples. The pH should be measured at 25°C and the prepared solution should be filtered before use.
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Second: manufacture ein a neutral salt spray solution in a salt spray chamber
The first result is that the pH of the test solution is 6.5~7.5 measured with pH test paper at 25°C. Dissolve the chemically pure NaCl according to GB1266 in third grade water according to GB6682 at a concentration of (50 ± 10) g/l. If it exceeds the range, it can be adjusted by adding analytical grade hydrochloric acid or caustic soda and the prepared solution must be filtered before use.
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Third salt spray box acetic acid salt spray solution preparation
The range of solution preparation should be controlled within 3.1~3.3. Dissolve the chemically pure sodium chloride conforming to GB1266 in third-rate water conforming to GB6682 at a concentration of (50 ± 10) g/l, and then adjust the pH of the solution with acetic acid to a range of 3.1 to 3.3 The salt spray samples collected were measured . The pH should be measured at 25°C and the prepared solsolution should be filtered before use. XIgTextile Testing Instruments, Testing Equipment Manufacturer