2017DIN EN ISO 20957-4:2017 Stationary training equipment - Part 4: Strength training benches, additional specific safety requirements and test methods (ISO 20957-4:2016); German version EN ISO 20957-4:2016
2010DIN EN 957-4:2010 Stationary training equipment - Part 4: Strength training benches, additional specific safety requirements and test methods; German version EN 957-4:2006+A1:2010