NBN EN 14157 : 2004

Foreword
1 Scope
2 Normative references
3 Method A - Wide Wheel Abrasion Test
4 Method B - Böhme Abrasion Test
5 Method C - Amsler Abrasion Test
6 Test report
Annex A (informative) Correlation between the reference method and
        the other two methods

Describes three test methods to determine the abrasion resistance of natural stones used for flooring in buildings. One of the methods - the 'wide wheel abrasion method' is defined as the reference method.