The following standards apply to the building sector:
· UNE 80. 502: “Quicklimes and hydrated lime for the improvement and or stabilisation of soils.
· UNE 80.503: “Calcium hydroxide for vituminous mixture.
· UNE-EN 459-1: “Lime for construction. Part 1: Definitions, Specifications and Conformity Criteria” (Harmonised European Standard).
· UNE-EN 459-2: “Building lime. Part 2: Test methods”.
· UNE-EN 459-3: “Lime for construction. Part 3: Conformity evaluation.
The following standards apply for the treatment of drinking water with lime:
· UNE-EN12518 “Chemicals used for treatment of water intended for human consumption: high calcium lime” (Harmonised European Standard).
· EN 12485 (European Standard) “Chemicals used for treatment of water intended for human consumption: calcium carbonate, high calcium lime and half burned dolomite. Tests methods”.
What are the typical impurities found in lime?
The impurities in limestone depend on the geology of the rock. They are inert elements embedded in the limestone and mainly consist of the following elements: SiO2 (silicon oxide), Al2O3 (aluminium oxide) and Fe2O3 (iron oxide).
