Wine Analysis Home

ppm is an abbreviation for parts per million

• This is equivalent to 1 mg of any substsance dissolved in 1 L of solution (1 mg/L).
  
  
  1 ml of water weighs 1 gm
  1000 ml of water weighs 1000 gm
  1000 ml = 1 L
  1 L = 1,000 gm
  1 L = 1,000,000 mg
  
  Therefore 1 mg in 1 L (1mg/L) = 1 mg in 1,000,000mg
  
  which is the same as 1 part (1 mg) per million (1,000,000 mg) - ppm