I was just reading http://cfconventions.org/Data/cf-standard-names/27/build/cf-standard-name-table.html for sea_water_salinity and the guidance there suggests that the preferred standard name for modern measurements is sea_water_practical_salinity, which in turn says: "[sea_water_practical_salinity] should be used to describe salinity observations made from 1978 onwards (Practical Salinity is the salinity quantity stored by national data centres for post-1978 observations). The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale."
I was just reading http://cfconventions.org/Data/cf-standard-names/27/build/cf-standard-name-table.html for sea_water_salinity and the guidance there suggests that the preferred standard name for modern measurements is sea_water_practical_salinity, which in turn says: "[sea_water_practical_salinity] should be used to describe salinity observations made from 1978 onwards (Practical Salinity is the salinity quantity stored by national data centres for post-1978 observations). The only exception to this is where the observed salinities are definitely known not to be recorded on the Practical Salinity Scale."