BS EN 12485:2026 Chemicals used for treatment of water intended for human consumption — Calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate and dolomitic lime — Test methods - Page 2

This standard specifies chemical analysis and physical property test methods for treatment chemicals used in water intended for human consumption.

BS EN 12485:2026 specifies reference and alternative methods for analyzing calcium carbonate, high-calcium lime, half-burnt dolomite, magnesium oxide, calcium magnesium carbonate, and dolomitic lime used to treat water intended for human consumption. It covers sample preparation, reagent and glassware requirements, screening, gravimetric and titrimetric methods, conductivity testing, XRF, AAS, ICP-OES, and the determination of major, minor, and trace constituents including lead, cadmium, chromium, nickel, arsenic, antimony, selenium, and mercury. This edition supersedes EN 12485:2017 and introduces XRF methods, updated water quality requirements, a revised loss-on-ignition temperature of 500 °C, and updated crucible requirements.

Application Scope: Suitable for laboratories, water treatment chemical manufacturers, utilities, testing organizations, and compliance professionals assessing chemicals used to treat water for human consumption.