BS EN 13971:2020
$102.76
Carbonate and silicate liming materials. Determination of reactivity. Potentiometric titration method with hydrochloric acid
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 20 |
This document 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.
This method is applicable only to liming materials with a maximum particle size of 6,3 mm.
The type of liming material can be identified according to EN 14069 and the particle size can be determined according to EN 12948.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | undefined |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Principle |
| 8 | 5 Apparatus 6 Reagents |
| 9 | 7 Preparation of the test sample 8 Procedure 8.1 Automatic titration 8.1.1 Calibration |
| 10 | 8.1.2 Determination 8.2 Manual titration 8.2.1 Calibration |
| 11 | 8.2.2 Determination 8.3 Determination of neutralizing value |
| 12 | 9 Expression of results 9.1 Carbonate liming materials 9.2 Silicate liming materials |
| 13 | 10 Precision 10.1 Repeatability 10.2 Reproducibility 10.3 Precision data for carbonate liming materials |
| 14 | 10.4 Precision data for silicate liming materials |
| 15 | 11 Test report |
| 16 | Annex A (normative)Preparation of the test portion of liming materials coarser than 1 mm A.1 General A.2 Calculation of mass fractions retained on the test sieves A.3 Calculation of the mass of each sieving fraction to be incorporated in the test portion |
| 17 | Annex B (normative)Arrangement of the test apparatus |
