One standard for testing six chemicals used to treat drinking water
EN 12485:2026 brings together test methods for calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime.
- Chemicals used to treat water intended for human consumption are subject to purity requirements; the standard describes how to check whether a batch meets them.
- The set covers both classical wet chemistry and instrumental techniques — in a single document instead of several scattered ones.
- For a laboratory this means one reference document for six products, but also the need to check whether the methods used so far match the new edition.
- The results go into the records of water utilities as evidence that the reagents used comply, so the new edition also affects the recipients of the reports.