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Steels for the reinforcement of concrete. Reinforcement couplers. Requirements and test methods Ingestion-build-264231 Outline drawing with main dimensions1 Scope This British Standard specifies requirements and test methods for steel reinforcement couplers (hereafter called couplers) to be used for the mechanical splicing of steel reinforcing bars. It specifies requirements for couplers to be used for mechanical splices in reinforced concrete structures under predominantly static loads and additional requirements for couplers to be used in elements of structures subject to high cycle elastic fatigue