6.3 Standard Miniature Internal Mixer (MIM):
6.3.1 The standard miniature internal mixer shall be
equipped with a stainless steel mixer head having a bowl of
120-cm3 volume and stainless steel cam-style mixer rotors
(removable or fixed) of 34 to 35-cm3 displacement, thus
resulting in a 85 6 1-cm3 volume. The recommended loading
is 75 % (64 cm3). The fast or driving rotor (left) shall turn at
6.28 + 3.14 rad/s (60 + 3, − 0 rpm) and the gear ratio (drive to
driven) shall be 1.5:1. The mixer shall be equipped with a
thermocouple installed through the ridge in the bowl for
measuring and recording the batch temperatures. The mixing
chamber shall be closed during the mixing cycle by means of
a lever or ram. The head and the backplate shall be maintained