Observing, hearing, and asking is an indispensable step in Chinese medicine. The doctor understands the patient's condition by observing his complexion, listening to his voice, inquiring his symptoms, and reporting his pulse. Regarding water quality, we also have the most intuitive detection method-look, smell, check and taste.
Hope: Use a transparent glass to catch half a glass of water. After 3-4 hours, observe whether there is any sediment at the bottom of the cup. If there is, it means that the suspended impurities in the water exceed the standard.
Smell: Use a glass to catch the water as far as possible from the faucet, and smell the bleach (chlorine). If you can smell it, it means that the residual chlorine in the tap water exceeds the standard.
Check: Check whether there is a layer of white scale on the inner wall of the kettle being used. If there is, it means that the water hardness is too high.
Taste: Taste the boiled water. If there is a smell of bleach (chlorine), it means that the residual chlorine in the water exceeds the standard.
When you find one of the above-mentioned problems with drinking water in your life, you need a high-end, high-grade drinking fountain. The World Health Organization has announced five major standards for healthy water. The water does not contain substances that are toxic, harmful and odorous to the human body. The hardness of the water is between 30 and 200 ml/liter, and the dissolved oxygen in the water is not less than 7 ml/liter, and The carbon dioxide content is moderate, and the half width of the water cluster is less than 100 Hz. Finally, it meets the needs of human physiological functions.