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1. Preparation of neutral salt spray solution for salt spray tester
Dingbao shares the skills of salt spray tester solution preparation
Analytical pure sodium chloride was dissolved in purified water at a concentration of (50 ± 10) g/L. The pH of the test solution was determined to be 6.5 to 7.5 using a pH test paper at 25°C. When it is out of range, it can be adjusted by adding pure hydrochloric acid or sodium hydroxide solution. The prepared solution must be filtered before use.
2, salt spray test machine acetic acid - salt spray solution preparation
Analytical pure sodium chloride is first dissolved in purified water at a concentration of (50 ± 10) g/L, and then the pH of the solution is adjusted with acetic acid to make it within the range of 3.1 to 3.3. This pH is used for the collected Salt spray samples can be measured. The pH should be measured at 25°C. The prepared solution must be filtered before use.
3, the salt spray test machine copper accelerated acetic acid salt spray solution preparation
The first step will be to meet the analysis of pure sodium chloride solution in accordance with GB6682XX water, the concentration of (50 ± 10) g / L.
In the second step, reagent grade copper chloride was added to 3.8 liters of brine to dissolve and mix thoroughly.
In the third step, the pH of the solution was adjusted with acetic acid so that it was in the range of 3.1 to 3.2. This pH value was measured with the collected salt fog sample. The pH should be measured at around 25°C. The prepared solution should be filtered before use.
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