Galvanized Thickness Test According to ISO1461-2009,BS729-1971,ASTM A153/A153M-16A
The test device should be calibrated per 500 times. It’s essential to calibrate the equipment before each testing.
According to standard ISO1461-2009,BS729-1971 or ASTM A153/A153M-16A.
Based on meeting the zinc layer requirements, also try our best to ensure that the surface smoothness meets the requirements.
Also we test zinc layer adhesion by hammering test.