1. What Is TDS Calculation?

TDS (Total Dissolved Solids) calculation from electrical conductivity is a method used to estimate the concentration of dissolved substances in water. The relationship between conductivity and TDS is linear and depends on the composition of dissolved ions.

2. How Does The Calculator Work?

The calculator uses the TDS formula:

Where:

• \( TDS \) — Total Dissolved Solids (ppm)
• \( Conductivity \) — Electrical conductivity (μS/cm)
• \( Factor \) — Conversion factor (typically 0.5-0.7)

Explanation: The factor varies depending on the ionic composition of the water. Common values are 0.65 for natural waters, 0.55 for sodium chloride solutions, and 0.75 for sulfate-rich waters.

3. Importance Of TDS Calculation

Details: TDS measurement is crucial for water quality assessment, drinking water standards, industrial processes, agricultural irrigation, and environmental monitoring. High TDS can affect taste, corrosion, and scaling in pipes and equipment.

4. Using The Calculator

Tips: Enter conductivity in μS/cm and select an appropriate factor based on your water type. For most natural waters, use 0.65. For precise measurements, laboratory analysis is recommended.

5. Frequently Asked Questions (FAQ)

Q1: What Is The Typical Factor Range?
A: The factor typically ranges from 0.5 to 0.7, with 0.65 being the most common value for natural waters.

Q2: Why Does The Factor Vary?
A: Different ions have different electrical conductivity properties. The factor depends on the specific ionic composition of the dissolved solids.

Q3: What Are Acceptable TDS Levels In Drinking Water?
A: WHO recommends TDS below 600 ppm for good drinking water quality, though levels up to 1000 ppm are generally acceptable.

Q4: Can I Use This For Seawater?
A: This formula is not suitable for seawater due to its high and complex ionic composition. Specialized methods are needed for seawater TDS measurement.

Q5: How Accurate Is This Calculation?
A: This provides an estimate. For precise TDS measurement, gravimetric analysis (evaporation and weighing) is the standard method.