Health standard for respirable silica dust in the air of workplace.
车间空气中呼吸性矽尘卫生标准。
2
Examples where lower limit values have recently been proposed include wood dust, respirable silica, and beryllium.
例如木材灰、可呼吸性二氧化矽和铍为最近被提出具较低阈值的例子。
3
Objective to study the method to classify respirable dust harmfulness degree in geological exploration profession so as to provide scientific basis for its management.