QBY film pendulum hardness tester According to GB/T1730-93, ISO1552-1982 design and manufacture. Coating resistance to indentation deformation capacity under specified conditions, to certain weight

The amplitude of the pendulum swing in the film some needed time and swing the glass swinging the same amplitude ratio for the time needed. In O-1. Apply paint,

Paints, varnishes and related products of single-layer or multi-layer coating test on resistance and deformation resistance.

1. Equipment:

(1) the pendulum length 500 ± 1mm, the total mass of the pendulum is 120 ± 1g

(2) steel ball 8CIII GB308 standard specifications.

(3) the stopwatch: index of 0.1S (bring your own)

2. Tests must be at a temperature of 23 ± 2 ℃, relative humidity of 50 ± 5%.

3. QBY type stopwatch count. QBY-11 automatic counting