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A Study On Water Purity Using Electrical Conductivity(ความบริสุทธิ์ของน้ำดื่มน้ำใช้), Prasert Songkittiguna, Kriwal Wattoom

Chulalongkorn University Dental Journal

A study on the electrical conductivity, pH and bacterial cultures, the water purity is determined. Results are shown that the rain water during 2534 B.E. is much more polluted than 2533 B.E. Interestingly, the acidity of the rain water is approximately the same as the distillated water obtained from the Department of Pharmacology, Faculty of Dentistry, Chulalongkorn University. However, the distilled water displays the lowest electrical conductivity; it was one- tenth of the standard value of pharmaceutical or laboratory water set by the British Pharmacopoeia. The highest electrical conductivity, among all water tested, was both the Bangkok tap water and …