1.1.1 Prezentul standard stabile?te procedeele, instrumentele" ?i dispozitivele de verificare a abaterilor efective pentru caracteristicile geometrice ale elementelor piefabricate de beton, beton armat si beton precomprimat.precum ?i pozi?iile de verific
STAS 6657/3-1989 history
1989STAS 6657/3-1989 CONCRETE, REINFORCED CONCRETE AND PRESTRESSED CONCRETE UNTTS Inspections procedures, instruments and devices of geometrical characteristics