What are the requirements for the working environment conditions when doing metallographic test inlays?

Laizhou Weiyi Testing Instrument Manufacturing Co., Ltd. reminds you that the working conditions requirements when doing metallographic inlays are: 1. The altitude does not exceed 1,000 meters; 2. The surrounding medium temperature does not exceed 40°C, and no The temperature is lower than -10℃; 3. The relative humidity of the air is not greater than 85 (at 20℃); 4. There is no obvious vibration or turbulence; 5. There is no conductive dust or explosive gas around that can seriously damage metal and insulation. of corrosive gases.