Affiliate disclaimer: Some links on this blog are Amazon affiliate links, meaning I may earn a commission at no extra cost to you.
TDS Value and Water Quality Table
The values of TDS (Total Dissolved Solids) water quality tester and the water quality rating standards are as follows:
Table of Content
TDS Value Range and Water Quality Rating
| TDS Value Range (ppm) | Water Quality Type and Rating |
|---|---|
| 0 – 50 | Pure water, very pure water quality, suitable for drinking. |
| 50 – 100 | Mineral water or high-quality drinking water, good water quality, contains certain minerals. |
| 100 – 300 | Tap water, average water quality, suitable for daily drinking. |
| 300 – 600 | Poor water quality, may contain more impurities, bad taste. |
| 600 – 1000 | Poor water quality, may contain more soluble salts and impurities. |
| >1000 | Very poor water quality, not suitable for drinking. |
TDS Value Standards for Different Types of Water
- Pure Water: TDS value should be below 50ppm.
- Mineral Water: TDS value is usually between 100ppm and 200ppm.
- Tap Water: Qualified TDS value should be below 300ppm.
Notes
- The TDS value can only reflect the content of total dissolved solids in the water and does not fully represent the safety of water quality.
- The measurement results of the water quality tester may be affected by factors such as water temperature. It is recommended to conduct the measurement at around 25℃.
