Coat surface of abrasive hammer of the tester with dry or wet white cotton cloth then abrade colored specimen with ascertain loading and fixed times to get color-dyeing abrasive firmness .
英
美
- 用于燥或湿润之白棉布絮于本机之摩擦锥表面,以一定之荷重及次数,摩擦有色试片后,对照灰色标,评定染色摩擦坚牢度等级。