【摘要】 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。更多还原

【Abstract】 In order to work out MAC of dust, it should be distinguished dust into 7 categories on the basis of its nature, and 4 grades with respect to its harmful level. MAC of new industrial dust might be laid down according to the results of animal experiment. Methods to establishing dust MAC and procedures for reporting,examining and approving, and promulgating were proposed.更多还原