KS F 2437-2019 Standard test method for dynamic modulus of elasticity, dynamic modulus of rigidity and dynamic Poisson’s ratio of concrete specimens by forced resonance apparatus
2019KS F 2437-2019 Standard test method for dynamic modulus of elasticity, dynamic modulus of rigidity and dynamic Poisson’s ratio of concrete specimens by forced resonance apparatus
2013KS F 2437-2013 Standard test method for dynamic modulus of elasticity, rigidity and dynamic Poisson’s ratio of concrete specimens by resonance vibration
2008KS F 2437-2008 Testing method for dynamic modulus of elasticity, rigidity and dynamic Poisson’s ratio of concrete specimens by resonance vibration
1982KS F 2437-1982 Testing method for dynamic modulus of elasticity, rigidity and dynamic Poisson’s ratio of concrete specimens by resonance vibration