Draft Survey Hydrometer by Zeal is suitable for use in sea or fresh water.
It was specially designed in collaboration with S.G.S. Van Bree N.V., Antwerp, member of the Société Générale de Sur-veillance S.A. Geneva, to ensure that when carrying out a Draft Survey on cargo carrying vessels the weight to volume relationship of the supporting water was precisely measured and accurately reported.
Not all hydrometers are manufactured to the very high standards of Zeal whose quality is universally relied upon.
Supplied singles with certificate of conformity and instructions.
Draft Survey Hydrometer Specifications:
- 0.990/1.040 kg/L @ 15°C 330mm long x 0.0005 divisions