Bonded abrasives—Determination and designation of grain size distribution—Part 2:Microgrits
全国磨料磨具标准化技术委员会(SAC/TC 139)
GB/T 2481的本部分规定了刚玉、碳化硅微粉F230～F2000、#240～#8000的粒度组成、粒度标记和检测方法。
本部分适用于制造固结磨具和一般工业用途的微粉，精密研磨用的微粉，从固结磨具回收的微粉，以及用于抛光的松散微粉。
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