Feng Shui. Water articles, first of all to learn about the mandatory national "Sanitary Standards for Drinking Water" (GB5749-2006), related to the construction and protection of drinking water sources. On the basis of blue sky and white clouds and green mountains and green waters, we will talk about feng shui, wind up and good feng shui. Say water after passing the test The ancient theory of Feng Shui said: "The mountain pipe is a man, the water pipe". If there is a natural calm lake in the proper direction near the house, the humidity in the air is naturally high, which makes the gas field change subtly. The theory of feng shui says: "The air is scattered by the wind, and the boundary water is stopped." Water accounts for about 70% of the human body, so water is closely related to our lives. Is your drinking water up to standard? On July 1, 2007, the mandatory national standards for the Sanitary Standard for Drinking Water (GB5749-2006) and 13 national standards for sanitary inspection of drinking water jointly issued by the National Standards Committee and the Ministry of Health will be formally implemented. This is the first time in 21 years that the country has revised the "Standard for Drinking Water" issued in 1985. The revision of the Sanitary Standard for Drinking Water is one of the important measures to ensure the safety of drinking water. Under the coordination of the National Standardization Management Committee, the Ministry of Health led the Ministry of Construction, the Ministry of Land and Resources, the Ministry of Water Resources, and the State Environmental Protection Administration to organize experts in various fields such as health, water supply, environmental protection, water conservancy and water resources to complete the standard. Revision work. In the "Sanitary Standard for Drinking Water" issued in 1985, the indicator of turbidity of drinking water is "3-5", and the new "Standard" raises it to "1-3", that is, throwing away a lot The physical and chemical indicators that ordinary people can't understand don't say. The most intuitive thing to feel is that the water color will be clearer. In fact, turbidity is not only a sensory index, low turbidity can make the bacterial virus exposed in the water, disinfectant can effectively kill, making drinking water healthier is the core of the new "standard". The old "Standard" has only 35 testing items, among which there are many testing items for inorganic pollutants, involving less organic pollutants and pesticides, and there are no indicators for detecting microorganisms such as algae toxins, which is related to water pollution in China. The situation that caused the increase in organic matter in the water was seriously unsuitable. Among the 71 water quality indicators added by the new Standard, the microbiological index has increased from 2 to 6, which has increased the intestinal diseases such as Giardia lamblia and Cryptosporidium, which are easy to cause abdominal pain. Detection of all killed microorganisms. The disinfectant for drinking water increased from 1 to 4, and the number of inorganic compounds in toxicological indicators increased from 10 to 22. This increased the production of halogenated organic substances such as dichloroacetic acid in the purification of water, and the algae plant Microcystis in the water. Detection of toxins and the like. The number of organic compounds increased from 5 to 53 and the sensory traits and general physical and chemical indicators increased from 15 to 21. In addition, 8 of the original 35 indicators were revised. At the same time, in view of the negative impact of chlorination on water quality safety, the new Standard also re-considered the impact of safe chlorination on water supply safety in the water treatment process, and increased the related testing items. The new "Standards" apply to all types of centralized drinking water, as well as drinking water for decentralized water supply. Characteristics The new standard has the following three characteristics: First, it strengthens the requirements for the disinfection of water quality organic matter, microorganisms and water quality. The drinking water quality index in the new standard has increased from 35 to 106 in the original standard, an increase of 71. Among them, the microbiological index increased from 2 to 6; the disinfectant index for drinking water increased from 1 to 4; the inorganic compounds in the toxicological index increased from 10 to 21; the organic compounds in the toxicological index increased from 5 to 5. 53 items; sensory traits and general physical and chemical indicators increased from 15 to 20; radioactive indicators are still 2 items. The second is to unify the sanitary standards for drinking water in urban and rural areas. The third is to achieve the standard of drinking water and international standards. The selection of new standard water quality projects and indicators values ​​fully takes into account the actual situation in China, and refers to the World Health Organization's Guidelines for Drinking-water Quality, with reference to drinking water standards in the European Union, the United States, Russia and Japan. Scope of application The standards stipulate the sanitary requirements for drinking water quality, the sanitary requirements for drinking water sources, the sanitation requirements for centralized water supply units, the sanitary requirements for secondary water supply, the sanitary requirements for sanitary and health products for drinking water, water quality monitoring and water quality testing methods. This standard is applicable to the drinking water of various types of centralized water supply in urban and rural areas, and also to the drinking water of decentralized water supply. Fiber Pen Nib,Passive Capacitive Stylus Pen,Rubber Tip Stylus Pen,Microsoft Stylus Pen Shenzhen Ruidian Technology CO., Ltd , https://www.szwisonen.com
