Ключевые слова:
Water testing|Marking|Density|Safety measures|Water supply|Melting point|Physical properties of materials|Chemical properties|Toxic materials|Purity|Compositional tolerances|Calcium inorganic compounds|Potable water|Water purification|Determination of content|Solubility|Chemical composition|Chemical analysis and testing|Trace element analysis|Instructions for use|Impurities|Phosphates|Water treatment|Storage