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TDS to EC Conversion Formula:
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TDS (Total Dissolved Solids) to EC (Electrical Conductivity) conversion is a method used to estimate the electrical conductivity of water based on its total dissolved solids content. This relationship is important in water quality assessment and various industrial applications.
The calculator uses the conversion formula:
Where:
Explanation: The conversion factor varies depending on the ionic composition of the dissolved solids. The default factor of 0.5 is commonly used for general purposes.
Details: TDS and EC measurements are crucial for water quality monitoring, agricultural irrigation, hydroponics, aquaculture, and various industrial processes where water purity affects performance and outcomes.
Tips: Enter TDS value in ppm and the conversion factor (default is 0.5). Adjust the factor based on the specific characteristics of your water sample if known.
Q1: Why does the conversion factor vary?
A: The factor varies because different dissolved ions have different electrical conductivity properties. The composition of dissolved solids affects the conversion ratio.
Q2: What is the typical range for conversion factors?
A: Conversion factors typically range from 0.5 to 0.8, with 0.5 being the most commonly used value for general water quality assessment.
Q3: When should I use a different conversion factor?
A: Use different factors when you know the specific ionic composition of your water sample, such as in specialized industrial applications or when dealing with water of known mineral content.
Q4: Are TDS and EC measurements interchangeable?
A: While related, they measure different properties. TDS measures mass concentration, while EC measures electrical properties. The conversion provides an estimate, not an exact equivalence.
Q5: What are typical EC values for different water types?
A: Distilled water: 0.5-3 µS/cm, Drinking water: 50-800 µS/cm, Sea water: ≈50,000 µS/cm. These values help assess water purity and suitability for various applications.