Part 2 ULTRA-FOM 300 United Kingdom Original text. Later amendments are not shown. 1Division 1 2The apparatus shall be equipped with an ultrasonic probe at 3,5 MHz (Krautkrämer MB 4 SE). The ultrasonic signal is digitised, stored and processed by a microprocessor. 3The lean meat content of the carcase should be calculated according to the following formula: Part 2