What is BS EN 13971 about?
BS EN 13971 specifies a method for the determination of the speed and effectiveness of the neutralizing potential of calcium carbonate, calcium magnesium carbonate, and calcium magnesium silicate liming materials by potentiometric titration with hydrochloric acid.
For liming materials coarser than 1 mm, it is essential to prepare the sample of a liming material by following exactly the description of Annex A.
The type of liming material can be identified according to EN 14069 and the particle size can be determined according to EN 12948.
NOTE: This method is applicable only to liming materials with a maximum particle size of 6,3 mm.
Who is BS EN 13971 for?
BS EN 13971 on the determination of reactivity of liming materials is useful for:
- Builders
- Manufacturers of carbonate and silicate liming materials
- Personnel of laboratory
Why should you use BS EN 13971?
Liming materials used in construction help to stabilize the internal humidity of a building by absorbing and releasing moisture which is used in plastered surfaces for whitewashing. BS EN 13971 gives test methods to determine the reactivity of lime materials by potentiometric titration with hydrochloric acid.
BS EN 13971 provides requirements on the apparatus and reagents used for the detection of reactivity by chemical analysis and testing of lime carbonate and silicate liming materials.
BS EN 13971 specifies the test procedures using automatic titration, manual titration, to determine the neutralizing value of carbonate and silicate liming materials.
Also, gives precision data for carbonate and silicate liming materials to maintain repeatability and reproducibility.
Overall, these test methods help you in determining the reactivity of lime materials used in building construction to ensure its workability, bond and compressive strength, flexibility, and resistance.
