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Anonymous users2024-02-10The water treated by the direct drinking machine has no harmful substances, and the World Health Organization requires a TDS value of less than 80.
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Anonymous users2024-02-09There are some differences between the indicators of purified water and direct drinking water, which are as follows:
1. Indicators of pure water.
Purified water is pure water that removes impurities, ions and organic matter from the water after treatment, and its indicators include:
1) Total dissolved solids (TDS): less than 10mg L;
2) pH:;
3) The water is colorless, transparent and odorless.
2. Indicators of direct drinking water.
Direct drinking water refers to water that can be drunk directly after proper treatment, and its indicators include:
1) pH value:; Nanai.
2) Residual chlorine:
3) Odor and peculiar smell: no peculiar smell;
4) Total number of bacteria: 100cfu ml;
5) Coliform bacteria: not detectable;
6) Five heavy metal contents: lead (Pb) mg L, cadmium (Cd) mg L, mercury (Hg) mg L, chromium (Cr) mg L, arsenic (As) mg L.
It should be noted that different countries and regions may have different requirements for pure water and direct drinking water, which are to ensure the safety and hygiene of water quality and avoid health problems caused by contamination of drinking water.
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Anonymous users2024-02-08[6 microbial indicators].
Total coliforms, total number of colonies, Escherichia coli, heat-stable coliforms, Giardia, and Cryptosporidium.
GB T Standard Test Method for Drinking Water Microbiological Indicators.
53 items of organic compounds].
Formaldehyde, trihalomethylene, dichloromethane, 1,2-dichloroethane, 1,1,1-trichloroethane, tribromomethane, monochlorodibromomethane, dichlorodibromomethane, epichlorohydrin, vinyl chloride, 1,1-dichloroethylene, 1,2-dichloroethylene, trichloroethylene, tetrachloroethylene, hexachlorobutadiene, dichloroacetic acid, trichloroacetic acid, trichloroacetaldehyde, benzene, toluene, xylene, ethylbenzene, styrene, 2,4,6-trichlorophenol, chlorobenzene, chlorobenzene, 1,2-dichlorobenzene, 1,4-dichlorobenzene, trichlorobenzene, Bis(2-ethylhexyl) phthalate, acrylamide, microcystin-lr, herbicidal pine, chlorothalonil, deltamethrin, dimethoate, 2,4-drops, heptachlorochlorobenzene, lindane, malathion, parathion, methyl parathion, pentachlorophenol, atrazine, carbofuran, chlorpyrifos, dichlorvos, glyphosate, chloroform, carbon tetrachloride, benzo(a)pyrene, DDT, hexahexahex.
Organic compound indexes include most pesticides, environmental hormones, and persistent compounds, which are the key points in evaluating the relationship between drinking water and health.
GB T standard test method for drinking water, comprehensive index of organic matter.
GB T Standard Test Method for Drinking Water Organic Matter Index.
GB T Standard Test Method for Drinking Water Pesticide Indicators.
21 inorganic compounds in toxicological indicators].
Fluoride, cyanide, arsenic, selenium, mercury, cadmium, chromium (hexavalent), lead, silver, nitrate (as nitrogen), bromate, chlorite, chlorate, antimony, barium, beryllium, boron, molybdenum, nickel, thallium, cyanide chloride.
GB T Standard Test Method for Drinking Water Inorganic Non-metallic Index.
20 sensory standards and general physical and chemical indicators].
Color, odor and taste, visible to the naked eye, pH, aluminum, sodium, iron, manganese, copper, zinc, chloride, sulfate, total dissolved solids, total hardness, oxygen consumption, ammonia nitrogen, sulfide, turbidity, volatile phenols, anionic synthetic detergent. [4 disinfectant indicators].
Chlorine and free chlorine preparations, monochloramine, ozone, chlorine dioxide.
GB T Standard Test Method for Drinking Water Sensory traits and physical indicators.
2 radioactivity indicators].
Total radioactivity, total radioactivity.
GB T Standard Test Method for Drinking Water Radioactivity Indicators.
[4 disinfectant indicators].
Chlorine and free chlorine preparations, monochloramine, ozone, chlorine dioxide.
GB T Standard Test Method for Drinking Water Disinfection by-product index.
GB T Standard Test Method for Drinking Water Disinfectant Index.
Metal content detection].
Chromium (hexavalent), nickel, beryllium, magnesium, sodium, lead, boron, arsenic, antimony, iron, copper, barium, vanadium, cadmium, chromium, mercury, cobalt, aluminum, manganese, selenium, zinc, molybdenum, potassium, selenium (tetravalent), thallium, silver, strontium, lithium.
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Anonymous users2024-02-07The test items of drinking water are: color, turbidity, pH, conductivity, total hardness, alkalinity (total alkalinity, bicarbonate and carbonate), acidity, transparency, chemical oxygen demand COD, biological oxygen demand BOD5, permanganate index, dissolved oxygen, potassium K, calcium Ca, sodium Na, magnesium MG, iron Fe, divalent iron Fe2+, ferric Fe3+, manganese Mn, copper Cu, zn, lead Pb, mercury Hg, chromium Cr, cadmium Cd, arsenic AS, hexavalent chromium Cr6+, silicon dioxideThere were 42 items, including chromium CR, burnt reduction, suspended solids SS, total salt content, total dissolved solid TDS, ammonia nitrogen NH3-N, cyanide CN-, sulfide S2-, sulfur dioxide SO2, total sulfur TS, total phosphorus TP, total nitrogen TN, dissolved silicon, total silicon Si, silica SiO2, free residual chlorine, total number of bacteria, coliform bacteria, pathogenic bacteria, fecal coliform bacteria, etc. The qualifications are as follows:
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Anonymous users2024-02-06The national "Drinking Water Hygiene Standard" GB5749-2006 drinking water routine testing items 38 items, testing indicators:
1) Microbial indicators (4 items): including total coliform bacteria, heat-resistant coliforms, Escherichia coli, and total number of colonies.
2) Toxicological indicators (15 items): including arsenic, cadmium, chromium, lead, mercury, selenium, cyanide, fluoride, nitrate, chloroform, carbon tetrachloride, bromate, formaldehyde, chlorite, chlorate.
3) Sensory properties and general chemical indicators (17 items): including color, turbidity, odor and taste, visible to the naked eye, pH, aluminum, iron, manganese, copper, zinc, chloride, sulfate, total dissolved solids, total hardness, oxygen consumption, volatile phenols, anionic synthetic detergents.
4) Radioactivity indicators (2 items): including total radioactivity and total radioactivity.
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Anonymous users2024-02-051.Microbiological indicators:
Total coliforms, heat-stable coliforms, Escherichia coli, total number of colonies.
2.Toxicological indicators:
Arsenic, actinium, hexavalent chromium, lead, mercury, selenium, cyanide, fluoride, nitrate, chloroform, carbon tetrachloride, bromate, formaldehyde, chlorite, chlorate.
3.Organoleptic traits and general chemical indicators:
Color, turbidity, odor and taste, visible to the naked eye, pH, aluminum, iron, manganese, copper, zinc, chloride, sulfate, total dissolved solids, total hardness, oxygen consumption, volatile phenols, anionic surfactants.
4.Radioactivity indicators:
Total alpha radioactivity, total beta radioactivity.
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Anonymous users2024-02-04The standard value of direct drinking water is within 0-50.
The value of the national drinking water standard water TDS pen test is within 0-50, indicating that this water is clean water and can be drunk directly. Although direct drinking water is soft and deficient water, it is not suitable for long-term drinking. Long-term drinking of this water can not replenish the calcium, iron and magnesium ions required by the human body, which is not beneficial to human health.
Benefits of Direct Drinking Water:
It is safe and free of impurities, the water quality is pure, it can discharge toxins from the human body and prolong the life of the human plum ear organs. Fresh and tap water are connected to ensure freshly prepared and drinkable water. It is convenient to connect directly with the faucet, and all intelligent automatic control, so you can enjoy pure and high-quality drinking water at any time.
Affordable, healthy life, a bucket of water costs less than yuan, enjoy the trendy lifestyle, and do not contain any pollutants. Disturbing Wang.
The installation of household water purification direct drinking machine can effectively filter all kinds of pollutant substances and meet the standard of raw drinking, and the cost is relatively low. Healthy and hygienic, to meet the standards of qualified bottled and bottled water, the water purification direct drinking machine is a purely physical filtration method, which can effectively remove all kinds of pollutants, and the cost is much lower than that of bottled water, and the water has a good taste and can be drunk directly. <>
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Anonymous users2024-02-03The test items of drinking water are: color, turbidity, pH, conductivity, total hardness, alkalinity (total alkalinity, bicarbonate and carbonate), acidity, transparency, chemical oxygen demand COD, biological oxygen demand BOD5, permanganate index, dissolved oxygen, potassium K, calcium Ca, sodium Na, magnesium MG, iron Fe, divalent iron Fe2+, ferric Fe3+, manganese Mn, copper Cu, zn, lead Pb, mercury Hg, chromium Cr, cadmium Cd, arsenic AS, hexavalent chromium Cr6+, silicon dioxideThere were 42 items, including chromium CR, burnt reduction, suspended solids SS, total salt content, total dissolved solid TDS, ammonia nitrogen NH3-N, cyanide CN-, sulfide S2-, sulfur dioxide SO2, total sulfur TS, total phosphorus TP, total nitrogen TN, dissolved silicon, total silicon Si, silica SiO2, free residual chlorine, total number of bacteria, coliform bacteria, pathogenic bacteria, fecal coliform bacteria, etc.
The direct drinking water system is through the water purifier (pure water equipment) host, the filtered and purified direct drinking water is transported to each drinking water terminal designated by us through the pipe network, and the drinking water terminal can be installed according to the actual needs, such as water boilers, pipeline machines, etc., which are both energy-saving and environmentally friendly, and more convenient for drinking water, and the direct drinking water system scheme is mainly used in factories, office buildings, schools, etc.
The following is an introduction to the precautions for the use of the Fountain of Youth. >>>More
For companies, factories, and units, what is needed is a high-end atmosphere to meet the filtration safety, which is better. I have seen the brand of Weikeli in many units, as well as Bili and Bilai, you can take a look at a few more, a straight drinking water machine is good, there is filter filtering, large amount of boiling water, 68 liters of water per hour, 20 liters of fresh water per hour, a water machine can be used for 80 people to drink!
1 General Principles of Patents Principle of Request: Someone must file a patent application for the patent office to accept it; Principle of writing: all formalities submitted should be handled in writing; and be signed or stamped by the applicant; The application documents must refer to the first-to-file principle of the unified format prescribed by the Patent Office >>>More
1. If it is used for cooking and washing, it is best to choose a pipe-type stainless steel water purifier (such as the domestic Jinliyuan, the imported one is very expensive, maybe it is still made in China haha) The water flow is from, and it is recommended to use it. >>>More