Requirements for means of testing: The testing means must be consistent with the testing objects, must be calibrated and with the accuracy consistent with the provisions of the competent agencies and includes the following categories:
- Testing load measuring equipment (dynamometer).
- Diameter measuring device (calipers, pan me).
- Distance measuring device (measuring tape).
- Device to measure the velocity and spin velocity.
- Device to measure insulation resistance.
- Device to measure ground resistance.
- Other used specially testing measurement devices if necessary.