Am I correct in saying that 1 ppm = 1mg/L?
If that is the case who to believe: Hanna ULR 0.15 ppm or ATI ICP 0.03 mg/L both drawn on the same day.
(The Hanna Phosphate checker has consistent on a weekly basis for 6 months.)
If that is the case who to believe: Hanna ULR 0.15 ppm or ATI ICP 0.03 mg/L both drawn on the same day.
(The Hanna Phosphate checker has consistent on a weekly basis for 6 months.)