salinometer

Updated: May 28, 2025

Will you now explain how the proper quantity of water to be blown out is determined? A. By means of the salinometer, which is an instrument for determining the density of the water, constructed on the principle of the hydrometer for telling the strength of spirits. Some of the water is drawn off from the boiler from time to time, and the salinometer is immersed in it after it has been cooled.

C.E. John Bourne - A Catechism of the Steam Engine

By the graduations of the salinometer the saltness of this water is at once discovered; and if the saltness exceeds 8 ounces of salt in the gallon, more water should be blown out of the boiler to be replenished with fresher water from the sea, until the prescribed limit of freshness is attained.

C.E. John Bourne - A Catechism of the Steam Engine

Should the salinometer be accidentally broken, a temporary one may be constructed of a phial weighted with a few grains of shot or other convenient weight.

C.E. John Bourne - A Catechism of the Steam Engine