What is the tds value of water?

TDS of drinking water is usually ≤1000 mg/l/l.

TDS refers to the total amount of various solid substances that can be dissolved in water, and the unit is mg/L, which mainly reflects inorganic salts and organic substances such as Ca2+, Na+ and K+ in water. TDS is mainly used to detect the water quality of pure water, distilled water and RO membrane (reverse osmosis membrane) water purifier.

The national standard "Hygienic Standard for Drinking Water" has limited requirements for TDS of drinking tap water, that is, the total dissolved solids are ≤ 1000mg/L, which is regarded as up to standard. Usually within 300 daily drinking water and 50 direct drinking water. The size of TDS does not reflect whether the concentration of harmful heavy metal ions, bacteria and nitrite in water exceeds the standard.

Extended data:

TDS water quality test pen is a simple and portable water quality test tool, which is used to test the TDS value or conductivity of water to judge the purity or pollution degree of water. The conductivity of water reflects the salt content in water. The purer the water, the less the salt content, the greater the resistance and the smaller the conductance. Ultra-pure water hardly conducts electricity.

TDS water quality test pen not only tests TDS value, but also tests water temperature, ambient temperature and other functions. TDS water quality detection pen can be widely used in water treatment industry, drinking water industry, family, personal home travel, field work and so on as a tool for water quality detection and discrimination. For residents in need, they can choose to use it themselves.

Baidu encyclopedia-TDS test