40.97 End of interruption of work - split/merged Apr 9, 1994
CEN
CEN/TC 229 Precast concrete products
European Norm
Reinforced or prestressed concrete panel with constant depth, lightened by longitudinal holes, produced by special techniques. Product characteristics are compressive and tensile strength, bending strength and shear strength, punching strength, sound insulation value, impact sound level, thermal insulation value.
ABANDON
prEN 1168
40.97
End of interruption of work - split/merged
Apr 9, 1994