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为了评价作业场所空气中粉尘的危害程度,加强防尘措施的科学管理,保护职工的安全和健康,促进生产发展,特制订本方法。本方法适用于测定作业场所空气中的粉尘浓度、粉尘中游离二氧化硅含量和粉尘分散度。 1 术语 1.1 作业场所工人在生产过程中经常或定时停留的地点。 1.2 粉尘悬浮于作业场所空气中的固体微粒。 1.3 粉尘浓度单位体积空气中所含粉尘的质
In order to evaluate the hazards of workplace dust in the air, strengthen the scientific management of dust-proof measures to protect the safety and health of workers and promote the development of production, specially formulated this method. This method is suitable for the determination of the dust concentration in the workplace air, the free silica content in dust and dust dispersion. 1 Terms 1.1 Workplace Workers in the production process often or regularly stay in place. 1.2 dust suspended in the workplace of solid particles in the air. 1.3 Dust concentration unit volume of dust contained in the air quality