NURSING ANM AND GNM

Detailed explanation-1: -Standard conversion: One thousandth of a gram is one milligram and 1000 ml is one liter, so that 1 ppm = 1 mg per liter = mg/Liter. PPM is derived from the fact that the density of water is taken as 1kg/L = 1, 000, 000 mg/L, and 1mg/L is 1mg/1, 000, 000mg or one part in one million.

Detailed explanation-2: -But if the density is 920 kg/m³ (oil), then 50 PPM is 46 mg/L. In general, 50 PPM is 50 * density / 1, 000 mg/L.