98/83/EC COUNCIL DIRECTIVE on the quality of water intended for human consumption
EN 12485 Chemicals used for treatment of water intended for human consumption - Calcium carbonate@ high-calcium lime@ half-burnt dolomite@ magnesium oxide and calcium magnesium carbonate - Test methods*, 2017-07-01 Update
BS EN 12518:2014 history
2014BS EN 12518:2014 Chemicals used for treatment of water intended for human consumption. High-calcium lime
2008BS EN 12518:2008 Chemicals used for treatment of water intended for human consumption - High-calcium lime