Determination of the Solids in Milk by a Lactometric Method at 102° F

Abstract

A formula is presented for calculating the solids in milk from the fat percentage and the lactometer reading at 102 F. The average deviation from the gravimetric method was + 0.05% total solids and the standard error for 99 samples of individual cow's milk was 0.13%. For 101 samples of herd milk, the average deviation was --0.006% and the standard error 0.09% total solids. Editor.