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Device for Rapid Determination op the Specific Gravity of Condensed Milk

Research Laboratories, Bureau of Dairying, United States Department of Agriculture, Washington, D. C.

ABSTRACT

One of the methods of determining the degree of concentration of sweetened condensed milk in the pan is to weigh a definite quantity of a sample on a sensitive balance. A cone-shaped copper cup holding 100 cc, designed by Mr. A. O. Dahlberg when he was a member of the department, has been used for a number of years by this laboratory for this purpose. The chief difficulty has been that when a stream of milk large enough to fill the cup rapidly was drawn, it was very hard to prevent overflowing the narrow opening, and covering the outside of the cup. This made it necessary to take time to wash and wipe the outside. If a small stream was drawn it took too long.

To overcome these difficulties a removable top has been designed to be used when filling the cup. This consists of a circular disk with a circular hole in the center just large enough to fit over the top of the cup