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TDS meaning in pure water machine
In the production of pure water machine, it is often encountered that the mark with the TDS is what, what TDS is the bottom of the bottom, in fact, TDS and conductivity and resistivity are the same, it is a parameter indicating water quality, can be said to be more image It means water quality, which is more vivid than conductivity and resistivity.
What is the bottom of the TDS? TDS is the abbreviation of English total dissolved solids. The Chinese translation is called total dissolved solids, also known as total salt content. The unit of measurement is milligrams per liter (mg/L), which indicates how many milligrams of total dissolved solids are dissolved in 1 liter of water. Or the total amount of ions contained in 1 liter of water.
TDS is generally available in the formula:
TDS=[Ca+Mg+Na+K]+[HCO3+SO4+Cl], which can visually see the sum of several anions and cations dissolved in water.
TDS is used in China and is widely used in the water treatment field in the United States and Taiwan. The TDS value measurement tool is generally a TDS pen. The measurement principle is actually indirectly reflecting the TDS value by measuring the conductivity of water. The actual IDS pen test is also the conductivity. In the physical sense, the more dissolved in water, the greater the TDS value of water, the better the conductivity of water, and the greater the conductivity value. We say this: TDS value represents the content of dissolved impurities in water. The larger the TDS value, the larger the impurity content in the water, and the smaller the impurity content.
1. Milligrams (mg) per liter indicates how many milligrams of total solids are dissolved in 1 liter of water.
2. PPM solution parts per million concentration unit. Refers to the number of milliliters of solute in a 1 million milliliter solution or the number of grams of solute in a solution of 1 million grams.
3. Conversion relationship: 1mg/l=1PPM
4. There is often a similar relationship between conductivity and conductivity. Sometimes TDS can also be used to indicate conductivity. The relationship between the two is: 1TDS = 2μS where μS is the unit of water conductivity.
The national standard GB5749-2006 "Sanitary Standard for Drinking Water" contains a limited amount of dissolved total solids (TDS) for drinking tap water: total dissolved solids ≤ 1000 mg / L.
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