PPM- parts per million (= way to judge strength of nute solution in hydro and quality of water)
EC- electrical conductivity, related to PPM
stinkyattic Reviewed by stinkyattic on . abbreviations? I was wondering if anyone had a word key or something? Ive been reading through the forum and i cant realy get an understanding of whats being talked about if i knew some of the meanings of like ppm, and lst , i do know these two but there just examples. Anyone help me out?:jointsmile: Rating: 5