Quality Control

Salt Spray Test

 Product Description.

 The salt spray test standard is a clear and specific regulation for the salt spray test conditions, such as temperature, humidity, sodium chloride solution concentration and pH value, etc. In addition, it also puts forward technical requirements for the performance of the salt spray test chamber. The judgment methods of the salt spray test results include: rating judgment method, weighing judgment method, corrosive substance appearance judgment method, and corrosion data statistical analysis method. The products that need to be subjected to the salt spray test are mainly some metal products, and the corrosion resistance of the products is investigated by testing..

 Process.

 1: The specimen should be thoroughly cleaned before testing. The cleaning method used will depend on the nature of the material, its surface and contamination, but must not use any abrasives or solvents that could affect the surface of the specimen. Generally, ethanol can be used to clean, or magnesium oxide solution can be used.

 2: Place the sample

 3: Record the initial time of the test, and it is forbidden to open the lid or stop the salt spray test during the test.

 4: Record the end time, and measure the collected liquid collection volume, pH, specific gravity and other information.

 5: When the laboratory temperature has cooled to room temperature and is basically free of fog, take the product out of the test chamber, rinse the product surface with warm water not higher than 38 ℃ for 1 minute (clean), and then blow the product surface clean with an air gun. Place it at room temperature, wear clean cotton gloves, check the appearance of the sample to be tested under 1000LUX light, and conduct the salt spray test result identification