units of measure standard names base quantity:length, symbol m meter base quantity: mass, symbol:kg kilogram base quantity:time, symbol s second base quantity: electric current, symbol A ampere base quantity: thermodynamic temperature, symbol K kelvin/> base quantity: amount of substance, symbol mol mole base quantity: luminous intensity, symbol cd candela practical salinity units: based on practical salinity scale of 1978. psu Turbidity in Formazine Turbidity Units: ftu Chlorophyll Concentration in micrograms per liter ug/l measure between acidity and alkalinity pH consider deegreeCelsius celsius centimeters per second cm/s meters per second m/s angular measure with 0 on North and increasing clockwise degree