DIN EN 17289-2:2021 散装材料的表征. 粒度加权细粒级分和结晶二氧化硅含量的测定. 第2部分: 计算方法; 德文版 EN 17289-2-2020
Characterization of bulk materials - Determination of a size-weighted fine fraction and crystalline silica content - Part 2: Calculation method; German version EN 17289-2:2020
The purpose of this document is to allow users to determine the fine fraction with the calculation method. It also describes the assumptions and preconditions to be met in order for this method to be valid. This calculation method is applicable only after experiments have shown t