Balch Homogenizer: Construction of the original Balch Homogenizer has been described .
The model we used was purchased from Isobiotec (Heidelberg, Germany), and is described
under the German patent #202 09 547.9. We tested tungsten carbide ball bearings ranging in size
from 7.982 mm to 7.999 mm, corresponding to wall-to-ball bearing clearances of 18 mm down to