24/30487127 DC BS EN 12485 用于處理人類用水的化學品 碳酸鈣、高鈣石灰、半燒白云石、氧化鎂、碳酸鈣鎂和白云石石灰 測試方法
BS EN 12485 Chemicals used for treatment of water intended for human consumption - Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime - Test methods