This standard BS EN 16004:2011 Chemicals used for treatment of water intended for human consumption. Magnesium oxide is classified in these ICS categories:
13.060.20 Drinking water
71.100.80 Chemicals for purification of water
This European Standard is applicable to magnesium oxide used for treatment of water intended for human consumption. It describes the characteristics of magnesium oxide and specifies the requirements and the corresponding test methods for magnesium oxide. It gives information on its use in water treatment.
