Overhead and Gantry Cranes, ASME B30.2-1996 Section 2-2.2.2 Rated Load Test states that "the load rating should not be more than 80% of the maximum load sustained during the test. Test loads shall not be more than 125% of the rated load, unless otherwise recommended by the manufacturer."
ASME B30.2a-1997 Section 2-2.2.2d states "If a load test is conducted, the load shall be not less than 100% of the rated load of the crane or hoist(s), whichever governs: or more than 125% of the rated load.
CSA B167-96 requires testing of all motions, limit switches, controls, brakes, etc at 100% rated capacity and speeds, and 125% rated capacity where rated speeds need not be attained.