KS G ISO 20957-8:2014 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods
2020KS G ISO 20957-8:2020 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods
2014KS G ISO 20957-8:2014 Stationary training equipment — Part 8: Steppers, stairclimbers and climbers — Additional specific safety requirements and test methods
2009KS G ISO 20957-8:2009 Stationary training equipment-Part 8:Steppers, stairclimbers and climbers-Additional specific safety requirements and test methods