The HI96822 displays results in three popular measurement units: Practical Salinity Units (PSU), salinity in parts per thousands (ppt) and specific gravity (S.G. (20/20)). Within seconds, the salinity and temperature are digitally displayed on the LCD. Early Determination of Salinity: from Ancient Concepts to Challenger Results; Introduction of the International Standard Seawater; -34.72 (34.72 is a number, you really don’t need the ppt,ssu, etc.) An EC meter measures conductance through a solution in a container of specific dimensions. What is salinity? To say a water sample is 2000 EC is like saying a table is 2000 long, without specifying millimetres, centimetres or metres. Salinity used to be expressed in parts per thousand (ppt). If you encounter any issues to convert, this tool is the answer that gives you the exact conversion of units. These salinity calculations based on conductivity measurement are based on dilutions of seawater. fermi dot jhuapl dot edu / denscalc.html. The HI96822 is a rugged, portable digital refractometer designed for the measurement of salinity of natural or artificial seawater. Comes with all the necessary solutions and batteries- everything you need to get started measuring right away. Converting Salinity Percentage to Salinity Percentage is easy, for you only have to select the units first and the value you want to convert. It is necessary to clearly define the units of both conductance and length when talking ECs. sometime as “practical salinity units” (psu). The instrument’s high accuracy and simple op Otherwise the Unesco practical salinity scale 1978 conversions can be used to provide the more accurate calculation of salinity. Conductivity (mS/cm) = Temperature (ITS-90) = Sea Pressure (dbar) = Practical Salinity (PSS-78) = Search for: History of Salinometry. The Orion meter reports Salinity in “ppt” to avoid the display of a unitless value and in accordance with historical use. HI98319 is a digital salinity tester designed specifically for saltwater aquariums and displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.). Average Salinity: standard seawater has a salinity of 35‰ at O˚C (32˚F). Absolute (or ideal) salinity is the mass fraction of salts in seawater 1.In practical terms, salinity is expressed as PSU (practical salinity units) which are based on water temperature and conductivity measurements 1. Practical Salinity Calculator. - Absolute Salinity: ratio of the mass of dissolved material in a sample of seawater to the mass of the sample of seawater o How did the Ocean get Salty? This waterproof tester uses an amperometric conductivity probe to determine the salt content in the water. For oceanic seawater, ppt and PSU are very close. Note: Salinity values in ppt and psu are nearly equivalent, by design. Salinity units. Displays results in parts per thousand (ppt), Practical Salinity Units (PSU), or specific gravity (S.G.). The formulas are available at some locations as an online calculator, e.g.