ppt

Hello! I have an Excel sheet, where I have a lot of aquarium data, and I have found myself in the need many times to want to know in a direct way how much is in gravity unit the value obtained from a measurement of a Hanna pencil (for example) in ppt. And the other way around too, to have the...

Hi all For the past couple years I’ve only been using my good old refractometer and calibrating it with 35ppt solution to measure my salinity in tanks and when mixing water. It has always worked well for me and is my standard for mixing water. Well recently I purchased the Hanna marine...