Cups up! Report the water quality TDS test value, and wait for the expert to analyze.

This is a misunderstanding of the TDS value.

Total Dissolved Solids (TDS) in water, unit mg L, TDS is the dissolved substances in water, which is a general term for calcium and magnesium ions, colloids, suspended particulate matter, proteins, viruses, bacteria, microorganisms and corpses.

The filtration accuracy of the ultrafiltration membrane used in the ultrafiltration machine is one hundredth of a micron, which can filter out most of the colloids, suspended particles, proteins, viruses and bacteria, etc., but it cannot filter metal ions and a small number of bacteria, so the TDS value will not be reduced much, and after heating, the ions in the water and the water are more tightly combined, so the TDS value will be higher.

Therefore, TDS value is not the only criterion for whether water can be directly drunk, the biggest harm in water is residual chlorine, you can detect how much residual chlorine content is, pure water will not change color after adding residual chlorine reagent.

If you are very concerned about water quality, you can choose RO reverse osmosis water purifier, the TDS value is less than 50, and there will be no residual chlorine, pipeline scaling hazards.

Direct drinking water is directly drinkable, there are national standards The European Union is not more than 70ppm, the United States is not more than 50ppm, the ultrafiltration machine you buy is not able to achieve that effect, I am in Shanghai The water quality here is very poor The tap water is generally around TDS380, and the direct drinking water machine is used here with such as Keflon direct drinking water machine, the market is about 2k, I only know this. Shanghai treats epiphysis with a direct drinking water machine is between 10 and 18. That's all for now, I don't know how to m me anymore.

You can't drink it straight.

Very normal, the TDS value is the total dissolved solids, and its test principle is to test the conductivity of water, how to get the TDS value by conversion. So it characterizes the number of ions in the water.

Ultrafiltration does not remove ions, so the TDS value does not change much.

The question of whether the water can be drunk directly is not very good for you, because it depends on the quality of your tap water, some tap water can be drunk directly without being treated by a water purifier, and some may not be able to drink directly no matter how you deal with it. If you don't have much problem with tap water, you should be able to drink it directly with an ultrafilter.

In addition, the water purifier can reduce the TDS value, and its effluent is relatively safe, even if the tap water quality is very poor, the water from the water purifier can be drunk directly.

First of all, it is important to emphasize that the water produced by the ultrafiltration mechanism does not meet the standard for direct drinking.

Because the pore size of the ultrafiltration membrane is one hundredth of a micron, and harmful substances such as heavy metal ions are smaller than this pore size, the ultrafiltration machine cannot remove harmful substances such as heavy metal ions.

The standard for direct drinking water is: TDS value below 50.

Note: Only direct drinking machines that use RO membranes (1/10,000 microns in pore size) can filter out these harmful substances.

Looking at the data you listed, you can tell you with certainty that the quality of the machine you bought is very poor. The removal rate of 10% cannot be reached.

The TDS value increases after boiling because the water filtered by the ultrafilter still contains a lot of impurities, and the impurities will react with the putrenic melanin in the water under the action of high temperature to form harmful substances, so its TDS value will increase.

Water quality TDS test 1000mg L is normal.

The TDS value is generally used to measure the purity of pure water, but a small TDS value does not mean that the water quality is good, and a high TDS value does not mean that the water quality is poor. Qualified drinking water standards must meet microbiological indicators, toxicological indicators, organoleptic properties and general chemical indicators, as well as radioactivity indicators. Healthy and clean domestic water shall not contain pathogenic microorganisms, and the chemical substances and radioactive substances in the water shall not endanger human health, and the sensory properties shall be good.

Purified water refers to Ho without impurities, referred to as clean water or pure water, which is pure, clean, and does not contain impurities or bacteria, such as organic pollutants, inorganic salts, any additives and various impurities, and is the raw water that meets the sanitary standards for drinking water. It is prepared by electrodialyzer method, ion exchanger method, reverse osmosis method, distillation method and other appropriate processing methods, sealed in a container, and does not contain any additives, colorless and transparent, and can be drunk directly.

Methods of water quality testing

There are actually many ways to test water quality, first of all, we can analyze the color and transparency of the water, for example, the water quality of general clay is definitely not particularly good, and the color of the water is yellow. In addition to this method, we can also detect some trace components in the water, of course, this is to use a detector to analyze it.

Another method is to use redox or electrochemical methods for detection, and the last method is to detect by heating and oxidant decomposition. There are so-called centers for disease control, prevention and prevention everywhere that can carry out routine testing of drinking tap water.

Summary. Hello friends, it's an honor to <>serve you

The size of the TDS value is related to the water source, water treatment method, season, temperature and other factors. Generally speaking, the TDS value of tap water, boiled water, and mineral water is in the range of 200-300ppm, the TDS value of pure water is 0, and the TDS value of bottled water is between 50-100ppm. There are different TDS standards for different uses of water, for example, the TDS standard for drinking water is below 500ppm, and the TDS standard for fish tank water is between 200-400ppm.

TDS water quality test is more or less normal.

Hello friends, it's an honor to <>serve you

The size of the TDS value is related to the water source, water treatment method, season, temperature and other factors. Generally speaking, the TDS value of Zhengshui, boiled water and mineral water is in the range of 200-300ppm, the TDS value of purified water is 0, and the TDS value of bottled sailor's song is between 50-100ppm. There are different TDS standards for different types of water, for example, the TDS standard for drinking water is less than 500 ppm, and the TDS standard for fish tank water is between 200 and 400 ppm.

Secondly, TDS refers to the total amount of dissolved solids in water, which is expressed in milligrams of oxygen per liter of water, and exists in water in a molecular state. The TDS value reflects the amount of minerals, salts and fine metals contained in the water, and also affects the hardness, taste and transparency of the water. TDS value is one of the important indicators of water quality testing, but it does not directly represent the quality of water quality.

The quality of water also depends on other indicators, such as microorganisms, heavy metals, organic matter, nitrite, etc. The TDS value can only reflect the amount of conductive substances in the water, and cannot detect harmful substances such as bacteria, viruses, and pesticide residues.

Hello, dear <>

According to the questions you provide, we will find the following: Hello, TDS refers to total dissolved solids, which refers to the total amount of all dissolved substances in water. The higher the TDS water quality test result, the more dissolved substances in the water, the worse the water quality.

In general, TDS water quality test results between 50-500ppm are considered normal, but the specific criteria will vary depending on the reputation. For example, TDS standards for drinking water are generally below 250 ppm, while standards for agricultural irrigation water can be as high as 2000 ppm. It is important to note that the TDS value is only an indicator of water quality testing and cannot represent all the characteristics of water.

Therefore, when performing water quality testing, other indicators such as pH, dissolved oxygen, hardness, etc., need to be considered. Taken together, these indicators allow for a more accurate assessment of water quality.

Summary. Hello dear, the normal TDS value of tap water is about 300. The higher the TDS value in tap water, the more dissolved matter there is in the water.

The TDS value refers to the total amount of all solutes in the water, including the content of both inorganic and organic matter. Measurement method of TDS value of tap water: open the TDS pen probe cover, press the button marked ON OFF, wait for the LCD screen to display, insert the TDS pen into the measured water, and after the value is stable, press the button marked HOLD, take out the TDS pen and read the value.

Factors influencing TDS value testing: Water temperature: TDS pens should not be used to measure high temperature water bodies.

Water velocity: The TDS pen cannot be used to measure a body of water that shakes a lot. Water Pollution:

TDS pens cannot be used to measure water bodies with high pollution concentrations.

Hello dear, the normal TDS value of tap water is about 300. The higher the TDS value in tap water, the more dissolved matter there is in the water. The TDS value refers to the total amount of dissolved and vertical tumble in the water, including the content of both inorganic and organic matter.

The measurement method of tap water TDS value: open the TDS pen probe cover, press the button marked ON OFF, wait for the LCD screen to display, insert the TDS pen into the measured water, and after the value is stable, press the shirt button marked with HOLD, and take out the TDS pen to read the value. Factors influencing TDS value testing:

Water temperature: The TDS pen should not be used to measure hot water bodies. Flow rate of water:

The TDS pen cannot be used to measure a body of water with large shaking. Water pollution: The TDS pen cannot be used to measure water bodies with high pollution concentrations.

Pro, the standard of water quality TDS is to detect whether the impurities in the water source are qualified, the more impurities in the water means that the TDS value will be higher, generally does not meet the TDS value standard of the water body is macro and can not be drunk, but many people also have a misunderstanding that the lower the TDS value, the better the water quality, this concept is completely wrong. Zen files.

If the TDS value of the water chain collapse exceeds 600, then it means that the water quality of Pa Zhaojian does not meet the human drinking standard, and the water quality TDS value is lower than 450, which basically belongs to the range of the standard pants, and this value also belongs to the national standard direct drinking water standard.

Because the channels of our drinking water are also different, so the impurities in the water are completely different, if the human body drinks unclean water for a long time, it will also lead to problems with healthy burial, and in serious cases, there will also be damage to gastrointestinal function.

Hello friend<>

TDS (Total Dissolved Solids) is the sum of all dissolved inorganic and organic compounds in water. In general, a TDS value of less than 500 ppm (milligrams) is preferable for drinking water. According to the World Health Organization's standards, the TDS value should be less than 1000ppm.

Exceeding this range may have adverse effects on human health. However, it is important to note that different sources of water and use of Paimin require different TDS levels. For example, the TDS value of seawater is usually as high as 35,000 ppm, and the water quality required for plant growth generally requires a TDS of about 300 ppm.