Studies on Methods for Determination of Solids-Not-Fat in Milk

I. Comparison of Plastic Beads Method of Golding with Gravimetric Method

Abstract

Golding plastic beads and gravimetric methods were compared in the determination of solids-not-fat per cent of milk in samples collected mainly from milk cans (about 35 l in capacity) at ten milk plants throughout Japan.
The correlation coefficient between these two methods varies in different districts as follows. (Figures in parenthesis are numbers of sample tested): Engaru 0.31 (101), Morioka 0.77 (155), Fukushima 0.85 (186), Tokyo I 0.78 (183), Tokyo II 0.81 (137), Matsumoto 0.26 (147), Nagoya0.94 (100), Hanshin 0.81 (166), Tokushima 0.59 (156), Kumamoto 0.52 (127).
Therefore regional examination should be done before appling Golding method.