Clean door adheres to three "no bring in prin

　　Regular cleaning and maintenance and dust test. It is far from enough to clean and maintain the clean room in the clean door every day. At ordinary times, it is mainly aimed at the large area and the area within the visual range. However, it is easy to ignore the dust accumulation places such as some small corners, walls and machine bottom. Therefore, it is necessary to carry out a thoroughbig cleaning" at least once a week to clean these edges and corners 。 So how can we make sure that the cleaning and maintenance is in place? Through the dust particle counter to test the falling dust, it can be accurately and quickly judged.

　　Clean door adhere to the threeno bring in principle", staff must wear dust-free clothing, dust-free shoes, disposable mask, head cap and pass through the air shower channel before the clean room; the tools and materials carried by the staff should be brought into the clean room only after cleaning, and the non essential articles are not allowed to enter the clean room; non staff members are not allowed to enter the clean room. In addition, the solid waste generated in the room should be contained in the dustbin with a cover, which should be covered with plastic garbage bags to facilitate timely cleaning. Before leaving or after work, the staff must take away the solid waste and do not leave it in the clean room.