Free chlorine water test kitชุดทดสอบคลอรีนอิสระคงเหลือในน้ำ (อ31)Chlorine Free in water (O31)

Water is essential to life. Human should drink clean water 2.5 liters a day. Chlorine can be used to sanitize water for drinking. The chlorination of water supplies serves primarily to destroy or deactivate disease producing microorganism. A secondary benefit, particularly in treating drinking water, is the overall improvement in water quality resulting from the reaction of chlorine with ammonia, iron, manganese, sulfide and some organic substances. Chlorination may produce adverse effects, Taste and odor characteristics of unsatisfy and other organic compounds present in a water supply may be intensified.