Coloring test is used to test the damaged wool with a variety of colorants.Pauli reaction is the method of using color change to determine the damage of wool.

• 泡利反应法是利用泡利试剂与受损羊毛反应后生成物的颜色深浅来判断羊毛的受损情况，可以初步判断是机械损伤、化学损伤还是生物损伤；