本标准描述了用于类型测试的参考方法和在精细聚集体或全聚集体（MB）中测定0/2 mm级分的亚甲基蓝值的争议情况。它还描述了确定附件A中0/0,125毫米级分（MBF）的亚甲基蓝值的参考方法。对于其他目的，特别是工厂生产控制，可以使用其他方法，条件是与已经建立了合适的参考方法

This standard describes the reference method used for type testing and in cases of dispute for the determination of the methylene blue value of the 0/2 mm fraction in fine aggregates or all-in aggregates (MB). It also describes the reference method for the determination of the methylene blue value of the 0/0,125 mm fraction (MBF) in Annex A. For other purposes, in particular factory production control, other methods may be used provided that an appropriate working relationship with the suitable reference method has been established.