Total Dissolved Solids (TDS) Standards

(Showing 1 of 1)

Total dissolved solids readings usually come from a conductivity measurement, so calibrating a TDS meter starts with a conductivity standard at a known value. Thermal Scientific carries the standards and instruments to support that workflow, and our team can help you identify the right solution for your meter and the range you measure.

Browse our conductivity standards and conductivity meters to calibrate and measure, and see our environmental calibration standards and portable pH and conductivity meters for field water quality work. Looking for a specific TDS standard? Contact our team and we will help source it.

Frequently Asked Questions

How do you calibrate a TDS meter?

Most TDS meters are calibrated with a conductivity standard at a known value, then convert conductivity to TDS using a conversion factor. Follow your meter manual for the recommended standard.

What is the difference between TDS and TSS?

TDS measures material dissolved in water, while total suspended solids (TSS) measures particles that can be filtered out. They use different methods and different standards.

Can your team source a specific TDS standard?

Yes. Tell us the value and volume you need and our team will help you find it.