BS EN 12485:2010 人类饮用水处理用化学品.碳酸钙,高钙石灰,半烧结白云石,氧化镁和碳酸钙镁.测试方法
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