two oceans factory wholesale conductivity instrument tds pen water quality analyzer detector tds-3 water-testing pen

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Description

Solid (English: Total dissolved solids, abbreviated TDS), also known as the total amount of dissolved solids, is measured in mg/L, indicating how many milligrams are dissolved in 1 liter of water.dissolveSolid matter. The higher the TDS value, the more dissolved substances in the water. Total dissolved solids refer to the total amount of all solutes in the water, includingInorganic substanceand有机化合物The content of both. Generally, it can be expressed asconductivityIt is generally understood that the higher the conductivity of a solution, the higher the salt content and the total dissolved solids (TDS).Inorganic substanceIn Chinese, in addition to the components dissolved into ionic form, there may also be inorganic molecules. Since the organic matter and inorganic molecules in natural water are generally not considered, the total dissolved solids are also referred to as the total dissolved solids. However, in specific water, TDS cannot effectively reflect the water quality. For example, the electrolysis water, due to the significant increase in [OH]- and other charged ions after electrolysis, the corresponding electrical conductivity is abnormally increased. For example, the original TDS of 17 in pure water after electrolysis by the electrolysis water machine.AlkalineThe TDS value of water is approximately 300.

Unit

Editor

（1）毫克（mg）/升 indicates how many milligrams of dissolved total solids are present in one liter of water.

PPM solution is a unit of concentration that represents the ratio of a specific substance to a larger volume of solution. It stands for parts per million, meaning that for every million parts of solution, there is one part of the specified substance.soluteThe milliliters or the number of grams of solute contained in 1 million grams of solution.

Conversion relationship: 1mg/l = 1 PPM

（4）It often exists a relationship with conductivity, and sometimes TDS can also be used to indicate conductivity. The relationship between the two is: 1 ppm TDS = 2 μS/cm.

Among them, μS/cm is the unit of conductivity.

National Standard GB5749-2006Sanitary Standards for Drinking WaterThe limit requirement for total dissolved solids (TDS) in drinking water is specified as: total dissolved solids ≤ 1000 mg/L.

Update time：20240427123006