Evers Fachlexikon
DIN standard
A DIN standard is defined as being a document drawn up with consensus and accepted by the DIN Deutsches Institut für Normung (German standards institute). It defines rules, guidelines or characteristics for activities or results for general and recurring applications, whereby it aims to achieve an optimum degree of order.
Dynamic coefficient of friction
The dynamic coefficient of friction, also called the kinetic or sliding coefficient of friction or friction coefficient (symbol µ or f, dimensionless), is a measure of how large the friction forces are which act between two solids.