Service, J: Measurement of Salinity of Sea Water (Classic Re

Excerpt from Measurement of Salinity of Sea Water

Two inexpensive methods have been found that are satisfactory. When the motion of the ship is not great, hydrometers of good quality that have been calibrated have been found to give satisfactory results when properly used; and for use in any ordinary weather suitable for hydrography a chemical titration method has been worked out that requires little or no previous experience for its successful manipulation.

The writer has calibrated the dipping refractometer to give salinity of sea water. Although the apparatus involved is rather expensive, so that probably it will not be supplied generally to the ships of the bureau, it is quite simple and easy to manipulate and will give good results on board ship even in the roughest weather.

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