What is the relevancy between the actual full load current value (test result) and the supposedly corresponding values from industry standards?
let us say that i had to make sure that my cables and protection devices are capable of handling the worst case circumstances


Cables and protection devices should be selected so that the original motor can be replaced by a motor that has the same power and speed rating as the original. In North America and, I believe, in much of the rest of the world, there are electrical codes that provide tables that specify currents to be used for cable selection for a range of voltage ratings and motor power ratings. Those tables have been developed based on industry standards. The tables are generally adequate for motors of the most common types and speeds. I believe they cover nominal speeds from 1000 to 3600 RPM and "normal" speed vs. torque characteristics. Lower speed motors and high slip motors may require larger cable.

In selecting a motor, it should not be necessary to be too concerned about actual full-load current or industry standards unless the motor has unusual performance requirements. You should be aware of the currents used by electrical codes to specify cable sizing. If a motor that is under consideration for purchase has full-load current exceeding that value, you should look more closely at the requirements. Determine if there is something about the performance requirements that causes the current to be higher than expected.