为消除厂、矿企业中硅尘的危害,保护工人、职员的安全和健康,现作如下决定:一、使用石英粉原料的工厂应该尽量采用天然石英砂。制造石英粉和其他含硅矿石粉的工厂应该尽可能采用湿磨。如限于技术条件,只能采用干磨的,生产设备必须机械化、密闭化,并且增加吸尘、滤尘装置。扩山应该采用湿式凿岩和机械通风,彻底改进湿式凿岩方法和整顿通风系统,并且加强管理;必要的时候可采用吸尘,洒水等防尘措施。二、厂、矿企业的车间或者工作地点每立方公尺所含游离二氧化硅10%以上的粉尘,在1956年内 In order to eliminate the hazards of silicon dust in factories and mines and to protect the safety and health of workers and staff, the following decisions are made as follows: 1. Factories using quartz powder raw materials should try their best to use natural quartz sand. Factories that manufacture quartz flour and other silica-containing ores should use wet grinding whenever possible. As limited to technical conditions, can only be used dry grinding, production equipment must be mechanized, sealed, and increase the vacuum, dust filter device. Expanding the mountain should adopt wet rock drilling and mechanical ventilation, completely improve the wet rock drilling method and rectify the ventilation system, and strengthen management; if necessary, dust-proofing, watering and other dust-proof measures can be adopted. Second, factories, mining enterprises in the workshop or work place every cubic meter of free silica contained more than 10% of dust, in 1956