Disc identification
Subject to the product and diameter of the disc, the following maximum operating speeds are, in principle, applicable and are distinguished by a coloured strip across the disc:

50 m/s blue speed stripe
63 m/s yellow speed stripe
80 m/s red speed stripe
100 m/s green speed stripe

Further reference is made to the respective maximum operating speeds in the following specifications:
Operating speed in m/s • Rotations per minute in Upm or rpm
For your working protection please observe the following safety pictograms established by the Federation of European Producers of Abrasives (FEPA):
Use a dust mask! Use ear protection!
Use eye protection! Use gloves!
Observe the safety instructions!