→JG/T163-2013 Rebar couplers tensile strength test can be carried out after the high-strength tool rod with external thread, screwed together with the sleeve. The actual bearing capacity of the tool rod should not be less than 1.20 times of the standard value of the tensile bearing capacity of the reinforcement under test.The test can be completed when the actual measured tensile bearing capacity of the sleeve reaches 1.1 times the standard value of the tensile bearing capacity of the rebar to be connected.The type test of the sleeve shall be carried out with the steel bar joint specimen after the sleeve is connected with the steel bar.