1. What is TDS vs Conductivity Ratio?

The TDS (Total Dissolved Solids) to Conductivity ratio is a measure used in water quality assessment to estimate the relationship between the concentration of dissolved ions and the electrical conductivity of water.

2. How Does the Calculator Work?

The calculator uses the simple ratio formula:

Where:

• \( TDS \) — Total Dissolved Solids in parts per million (ppm)
• \( Conductivity \) — Electrical conductivity in microsiemens per centimeter (μS/cm)

Explanation: The ratio typically ranges between 0.55 and 0.75 for most natural waters, with 0.67 being a common average value.

3. Importance of TDS/Conductivity Relationship

Details: This relationship is crucial for water quality monitoring, as conductivity measurements can be used to estimate TDS when direct measurement isn't available, and vice versa.

4. Using the Calculator

Tips: Enter TDS in ppm and conductivity in μS/cm. Both values must be positive numbers. The calculator will compute their ratio.

5. Frequently Asked Questions (FAQ)

Q1: What is a typical TDS/Conductivity ratio?
A: For most natural waters, the ratio is between 0.55 and 0.75, with 0.67 being a commonly used average value.

Q2: Why does the ratio vary?
A: The ratio depends on the specific ions present in the water, as different ions contribute differently to conductivity.

Q3: Can I estimate TDS from conductivity?
A: Yes, by multiplying conductivity by the ratio (typically 0.67 as a first approximation).

Q4: What affects the TDS/Conductivity ratio?
A: Water temperature, ion composition, and the presence of non-conductive particles can all affect the ratio.

Q5: When is this ratio most useful?
A: For quick field estimates of water quality when only one measurement (TDS or conductivity) is available.