At present, determining methods of Nylon-66 contain chemical and diopter method. The determinable error in chemical method is larger. 目前,测定Nylon-66盐(以下简称N-66)水溶液中N-66的方法有化学法、折光率法。
The determinable error in plate counting method is larger. 平板计数法费时且误差较大。