Accuracy and precision of Fossomatic 250/300/360 series of somatic cell counters compared to Fossomatic 215: collaborative study.

Abstract

AOAC method 978.26, Somatic Cells in Milk--Optical Somatic Cell Counting Method (Fossomatic), using Fossomatic 215 was adopted first action in 1978 and final action in 1984. The method specifying a second-generation cell counter, the Fossomatic 90, was approved final action in 1989. This demonstrates that the method has been well tested and has satisfied all the requirements of the Association. Since then, the manufacturer, Foss Electric, has introduced a third generation of equipment, which is being distributed as 3 different models. These are the Fossomatic 250, Fossomatic 300, and Fossomatic 360. The models differ only in their packaging and the speed at which they perform analyses.