Salinity from bench salinometers

The 1969 definition and the available corrections for temperatures higher than 10 °C were suitable for use with bench salinometers. However, for use with in situ measuring systems, it was insufficient because it did not cover the whole oceanic range of parameters. It was this severe lack of validity and the demand to define salinity solely from physical parameters that led to the definition of the Practical Salinity Scale of 1978. 

To determine salinity from bottle samples, bench salinometers have now replaced the chlorinity titration method almost completely, initially for practical reasons. Subsequently, as the 1978 Practical Salinity Scale has been adopted, consistent application of this scale requires the use of salinometers. 

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