BS EN ISO 7971-3:2019规定了一种常规方法，用于使用手动或自动、机械、电气或电子每百分含量测量仪器测定谷物的堆积密度，称为“每百分含量质量”。交叉引用:ISO 7971-2:2019ISO 7971-1:2009ISO 5725-2ISO 5725-3ISO 5725-6购买时可用的所有现行修订版均包含在本文件的购买中。

BS EN ISO 7971-3:2019 specifies a routine method for the determination of bulk density, called "mass per hectolitre", of cereals as grain using manual or automatic, mechanical, electric or electronic mass per hectolitre measuring instruments.Cross References:ISO 7971-2:2019ISO 7971-1:2009ISO 5725-2ISO 5725-3ISO 5725-6All current amendments available at time of purchase are included with the purchase of this document.