Since transport and handling involve both fragmentation and abrasion phenomena, it
would therefore relate more closely to quantities measured with the Holmen pellet tester
than with the tumbling can device, since the first device acts as an ‘in between’
simulator. For fundamental directed studies, some devices may give no valid estimate of
pellet quality as a function of various processing conditions (insufficient resolution) but
are still useful as a quick, routine device for both processing control and/or quality
control in the factory. The latter means that the use of a certain device method appears
suitable for process control within a certain factory when used under standard conditions