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为制订粉尘容许浓度,提出将粉尘容许浓度按粉尘性质分为七类,按粉尘危害程度分为四级。新的工业粉尘可以动物实验结果作为制订粉尘容许浓度的根据。并对制订方法、呈报、审批、公布程序提出建议。
In order to set the allowable concentration of dust, it is proposed that the allowable concentration of dust be divided into seven categories according to the properties of the dust, and classified into four levels according to the degree of dust hazard. New industrial dust can be animal experimental results as the basis for the development of dust tolerance. And make suggestions on the formulation of methods, presentation, approval and publication procedures.