This test is performed spreading a measured volume of glass spheres (ASTM and EN) or fine sand (NF) into a circular patch on the road surface and filling the surface depressions to the level of the peaks.
The apparatus comprises the following parts:
| Виробник | |
| Виробник | Controls |
80-B0179/30 - Measuring cylinder
80-B0179/31 - Sand spreader disc
80-B0179/5 - Solid glass spheres 180/250 micron. Pack of 25 kg
80-B0179/6 - Solid glass spheres 180/250 micron. Pack of 5 kg