Product Technical Specification:
A range of 0.990 to 1.040 kg/l, suitable for use in sea and fresh water and thus covering the range of densities normally required.
A scale graduated in density kg/l in air ( density in air is cometimes termed apparent density ) This permits the weight to be obtained by multiplying the scale reading by the volume in m3 of water displaced.
Calibration of the hydrometer for use in seawater, a liquid of medium surface tension.