1. Stainless Steel Testing Liquid
Using a stainless steel testing liquid is a straightforward method. Simply drop the testing liquid on the stainless steel surface to be examined. In about 2-3 minutes, the color will change. Different colors correspond to different types of stainless steel. Genuine grade 304 stainless steel will exhibit no color change within 3 minutes, or the color may slightly deepen at the bottom. Usually, stainless steel testing liquids come with a comparison color chart, allowing you to determine the material based on the result.
1. Before the test, wipe off the dust, dirt, oil, and water on the surface of the material to be tested.
2. This product is slightly corrosive, rinse with water when it sticks to the skin.
3. The above test results are approximate values, and the phenomenon may be slightly different when the stainless steel material of the same grade changes due to changes in factors affecting antirust performance such as structure and surface state.
4. In addition, when the ambient temperature is high, the corrosion ability of the reagent will also be increased, and the reaction speed will be accelerated, resulting in slightly different phenomena.