Can anyone give me a copy of the water quality standards drinking water, mineral water, etc. ?

Hygienic Standard for Drinking Water GB5749-85

Surface water environmental quality standard (GB3828-88).

Marine Water Quality Standard (GB 3097-1997).

Water Quality Standard for Farmland Irrigation (GB5084-92 instead of GB5084-85) and Fishery Water Quality Standard (GB11607 89).

Comprehensive Sewage Discharge Standard (GB 8978-1996 instead of GB 8978-88).

The water quality test standard for drinking water is GB 156 0190 2607-1998 bottled drinking purified water GB 8537-2008 drinking natural mineral water.

GB 15892-2009 Polyaluminum chloride for drinking water GB T 8538-2008 Test method for drinking natural mineral water.

DB50 302-2008 Polycarbonate (PC) Drinking Water Tank Closure

GB 12376-1990 Methods for the analysis of polonium-210 in water Electroplating sample method.

GB T Standard Test Method for Drinking Water Metal Index.

The water quality test items for drinking water are:

Microbiological indicators: fecal coliforms, total coliforms, total bacterial count, Staphylococcus aureus.

Heavy metals: lead, mercury, chromium, cadmium, arsenic, hexavalent chromium, silicon dioxide, chromium, barium, silver, beryllium, bismuth, cobalt, antimony, vanadium, indium, thallium, thorium, uranium.

Physical and chemical indexes: color, turbidity, pH, conductivity, total hardness, alkalinity (total alkalinity, bicarbonate and carbonate), acidity, transparency, chemical oxygen demand CODCR, biological oxygen demand BOD5, permanganate index, dissolved oxygen DO, residue, volatile phenol, Kjeldahl nitrogen, salinity.

Volatile organic compounds: benzene, likes, toluene, nitrobenzene, total organic halides, petroleum, organic matter.

Semi-volatile organic compounds: phthalates polycyclic aromatic hydrocarbons, organochlorines, organophosphorus, chlorobenzene, phenols.

The method of testing the water quality of drinking water is:

Flame emission photometry, ion chromatography, sodium EDTA2 titration.

Diazaphenanthrene spectrophotometry, ammonium persulfate spectrophotometry, flameless atomic absorption spectrophotometry.

Sodium diethyldithiocarbamate spectrophotometry, zinc reagent-cyclohexanone spectrophotometry.

Catalytic oscillographic polarography, cold atomic absorption, atomic fluorescence.

Acid cotton enrichment - potassium periodate spectrophotometry, flame emission spectroscopy.

Chromaticity: Most people can detect the color of drinking water when it is greater than 15 degrees, and people feel disgusted when it is greater than 30 degrees. The standard stipulates that the color of drinking water should not exceed 15 degrees.

Hard water usually does not cause direct harm to health, but because hard water contains more calcium salts, therefore, the pot we use to boil water is particularly prone to scale, and the precipitation of scale is mainly carbonates, as well as magnesium salts, such salts.

If part of it is broken down in the intestine, it will become a macro element for some people; If it cannot be dissolved and decomposed, it will be excreted with the feces and will not have a special effect on the body.

Water testing standards are different for different uses. The testing standards for drinking water are carried out in accordance with the "Sanitary Standards for Drinking Water", the secondary water supply of high-rise buildings is carried out in accordance with the "Hygienic Specifications for Secondary Water Supply Facilities", and the water quality of swimming pools is carried out in accordance with the "Sanitary Standards for Swimming Places". The complete formulation of water quality testing standards makes people's lives healthier.

The general process starts from discovering the problem and raising the problem, and after discovering the problem, make assumptions about the answer to the problem according to their existing knowledge and life experience Design the first plan, including the selection of materials, design methods and steps, etc. After reaching a conclusion, it is also necessary to reflect on the whole process of the general methodological steps of the experiment: asking questions, making hypotheses, making plans, implementing plans, drawing conclusions, expressing and communicating

Observation is a basic method of science Scientific observation can be made directly with the naked eye, with the help of magnifying glasses, microscopes and other instruments, or with the use of cameras, video recorders, video cameras and other tools, and sometimes it is necessary to measure Scientific observation should have a clear purpose; Observations should be comprehensive, meticulous, and realistic, and recorded in a timely manner; Be planned and patient; Think positively and record in a timely manner; To exchange views and discuss The design of the experimental protocol should be carried out closely around the questions and hypotheses raised When studying the influence of one condition on the research object, the experiment carried out under the same conditions except for the different conditions is called a controlled experiment General steps: find and ask questions; gather information related to the issue; make assumptions; design of experimental protocols; Conduct experiments and record them; analysis of experimental phenomena; Conclusion Investigation is one of the common methods of science When investigating, we must first clarify the purpose of the investigation and the object of the investigation, and formulate a reasonable investigation plan During the investigation process, sometimes because the scope of the investigation is very large, it is necessary to select a part of the survey objects as samples During the investigation process, it is necessary to record truthfully The results of the investigation should be sorted out and analyzed, and sometimes the statistical methods should be used to collect and analyze data is also one of the common methods of science There are many ways to collect information Go to the library to consult books and newspapers, and visit relevant people, The form of information includes text, **, data, and audio-visual data, etc., and the information obtained should be sorted out and analyzed, and answers should be found from it.

Hello, I am a working lawyer and I am happy to advise you.

Questions. How can a lawyer know about the water quality testing standard data?

I'm not consulting you on the legal side, sorry, excuse me, I don't know how to recommend it.

China's water management department stipulates that the TDS value range of household tap water should be below 300ppm, the TDS value range of pure water should be below 5ppm, and the TDS value range of mineral water should be between 100-200ppm. Therefore, the water quality TDS value range should be below 300ppm to be considered qualified.

Class water quality: Good water quality. Groundwater only needs to be disinfected, and surface water can be used for drinking after simple purification and disinfection.

Class water quality: The water quality is slightly polluted. After conventional purification treatment (such as flocculation, sedimentation, filtration, disinfection, etc.), the water quality can be used for domestic drinking.

Class water quality: It is suitable for secondary protection areas of centralized drinking water sources, general fish protection areas and swimming areas. Quasi-water quality: suitable for general industrial protection areas and recreational water areas that are not in direct contact with the human body.

Turbidity: 1ntu; ph：；Water temperature:

The resulting variation in ambient water temperature should be limited to: weekly average maximum temperature rise 1 weekly average maximum temperature drop 2;Dissolved oxygen: saturation rate 90% (or; Total Dissolved Solids Standard:

1000mg/l。

Introduction to the five conventional parameters of water quality: 1. The dissolved oxygen parameter of waterIt refers to the amount of oxygen dissolved in water. Most aquatic organisms need oxygen to survive and grow. 2. The temperature of water is a measure of the average energy (kinetics) of water molecules.

It is measured in a linear measure of Celsius or Fahrenheit. This is one of the most important water quality parameters. Temperature affects water chemistry and the functioning of aquatic organisms.

3. Water Conductivity Salinity solids are found in water in a dissolved form. Therefore, the salts dissolved in the water affect the change of positive and negative ions, which in turn affects the change of electrical conductivity in the water. 4. The pH value of water can be used to preliminarily judge the change of water quality.

5. Water turbidity, in which the sediment and organic matter particles suspended by algae can make the water turbid.

There are the following standards for drinking water quality testing:

1.Chromaticity: Most people can detect the color of drinking water when it is greater than 30 degrees, and people feel disgusted when it is greater than 30 degrees. The standard stipulates that the color of drinking water should not exceed 15 degrees.

2.Turbidity: It is an expression of the optical properties of water samples, which is used to indicate the degree of clarity and turbidity of water, which is one of the most important indicators to measure the good degree of water quality, and is also an important basis for assessing the purification efficiency of water treatment equipment and evaluating the status of water treatment technology.

The reduction of turbidity means that the content of organic matter, bacteria, viruses and other microorganisms in the water body is reduced, which can not only improve the disinfection and sterilization effect, but also help reduce the amount of halogenated organic matter.

Drinking water quality testing standards.

3.Odor and taste: The production of water odor is mainly due to the presence of organic matter, which may be a manifestation of increased biological activity or industrial pollution. A change in the normal odor of a public water supply can be a sign of a change in the quality of the raw water or inadequate water treatment.

4.Visible to the naked eye: Mainly refers to particles or other suspended matter present in water that can be observed with the naked eye.

Mineral water refers to drinking water that contains a certain amount of minerals in a natural water source and meets specific water quality standards after a series of treatments and processes. Water quality standards for mineral water are usually set by national or regional regulations and standard-setting bodies and include the following:1

Appearance and organoleptic indicators: Mineral water should be clear and transparent, free of suspended solids, sediments or odours, and meet specific colour and odor requirements. 2.

Chemical composition index: The main chemical components of mineral water include inorganic salts, trace elements and dissolved gases. Its content should be within the specified range to ensure the safety and suitability of the water.

3.Microbiological indicators: Mineral water should be free of pathogenic microorganisms, such as E. coli, etc., to ensure safe drinking.

4.Radioactivity indicators: The content of radioactive elements in mineral water should be lower than the specified limits, and lead should be used to ensure that there is no danger to human health.

5.Labeling requirements: The packaging of mineral water should clearly indicate its product name, manufacturer information, production date, shelf life and other important information, so as to provide consumers with correct purchase and use guidance.