DIN 51222 E:2015-09 Materials testing machines - Impact test - Particular requirements on pendulum impact testing machines with a capacity of nominal energy <= 50 J and verification
2017DIN 51222:2017 Materials testing machines - Impact test - Particular requirements on pendulum impact testing machines with a capacity of nominal energy <= 50 J and verification
2016DIN 51222:2016 Materials testing machines - Impact test - Particular requirements on pendulum impact testing machines with a capacity of nominal energy <= 50 J and verification
1995DIN 51222:1995 Materials testing machines - Impact test - Particular requirements on pendulum impact testing machines with a capacity of nominal energy 50 J and verification