仓井空一区二区免费视频,51午夜精品免费视频,亚洲国产欧洲综合997久久,日韩欧美亚洲每日更新在线,国产美女被遭高潮免费网站,秋霞电影网鲁丝片无码2020,欧美性爱一欧美精品,影音先锋资源 av,山村翁熄粗大乱怀孕刘雪 ,成 人 免费 黄 色 网站无毒,浪货趴办公桌～H揉秘书,男人J进女人屁爆水网站免费 ,亚洲欧美v国产蜜芽tv,亚洲最新偷拍网站,男生将78申请女生的定眼,大香伊蕉在人线国产2020年

1. The operation personnel in the clean room of the air shower room should work in strict accordance with the operating rules of the clean room. The doors and Windows of the clean room should be closed at any time. There should be buffer zone for the transfer of personnel and articles between the clean room and the non-clean room, and there should be wind bath equipment to prevent the convection of air flow. Personnel unrelated to production can not enter the clean room.

2. The ventilation times of the clean room and the air supply volume of the air conditioning purification system are the main internal factors to maintain the positive pressure and cleanliness of the clean room, but it is the restriction of the final resistance of the filters at all levels in the purification system.

3. The equipment in the dust-free room requires regular, regular and fixed cleaning and maintenance. Whether the materials and cleaning liquid used in the cleaning comply with the provisions of clean room management, etc.

4. For users, the cleanliness of the clean room is the focus of their most concern. The biggest pollution source of the clean room in operation is people and articles entering the clean room, and the dust particles produced in production is another reason that affects the indoor cleanliness.

5. Reasonable flow of people and logistics is of great significance to maintain indoor cleanliness. Whether people change clothes before entering the clean room and whether their clothes meet the standards of clean management norms. Some people with special production technology and high requirements for cleanliness should take a bath before entering the room. Whether the material is replaced before entering the clean room, and whether the material after replacement meets the clean room standard, etc