Please pay attention to the following preparations before the test of the anti-rust grease heat and humidity test box: 1. Preparation of test pieces: polish and clean the test pieces of the three places according to method A in SH / T0218. 2. The test piece of the anti-rust grease damp heat test box is coated with the sample 1. The anti-rust oil: pour the 500mL sample with uniform shaking into the beaker, remove the air bubbles on the surface of the sample, and adjust its temperature to 23 ± 3 ℃ Hook the prepared test piece vertically into the sample for 1min, then lift it and hang it on the shelf at a speed of about 100mm / min; 2. Anti-rust grease: heat the sample to melt it, take 500mL sample and place it in the beaker In the middle, use the hook to vertically immerse the prepared test piece into the molten sample. After the temperature of the test piece and the sample are the same, adjust the temperature to make the film thickness 38 ± 5μm, then lift it at a speed of about 100mm / On the shelf. Note: Different samples have different coating temperatures. First, the sample temperature should be changed, and the film thickness should be measured according to SH / T0218 until the coating temperature of 38 ± 5μm is obtained. 3. The test piece coated with the sample is drained for 24 hours in a clean place with a relative humidity below 70%, a temperature of 23 ± 3 ° C, no direct sunlight and small ventilation. Butter Dish,Butter Holder,Glass Butter Dish,Butter Dish With Lid Guangdong Qunfa Ceramics Co., Ltd , https://www.qunfaceramics.com