1 First of all, smelling, smelling the floor with a nose, the quality grade PVC floor is odorless. And those low-quality floors contain formaldehyde. 

2 We can use the dirty shoes on the floor surface scratch brush, floor marks of dirty, scrub with a clean cloth, if can't clean or not completely clean, illustrate the fouling resistance of the floor. 

3 We can use your fingertips, point or other sharp objects on the floor surface to test the wear resistance of the floor, line scratch is not obvious that the floor wear-resisting performance is poor. 

4 Can be cut with a knife to test the stability of the floor, floor if the floor is easy to be cut open, and suggests the floor without glass fiber layer, the floor stability. 

5 Testing the acid and alkaline of the floor, can be on the floor surface drops of alcohol, oil, a small amount of hydrochloric acid, a day after observing whether the floor surface aging, some floor acid-proof alkaline is very poor.