1. UNE-EN 1925 Natural stone sest methods. Determination of water absorption coefficient by capillarity;AENOR,1999
2. UNE-EN 12370 Natural stone test methods. Determination of resistance to salt crystallisation;AENOR,1999
3. UNE-EN 14579. Natural stone test methods. Determination of sound speed propagation;AENOR,2005
4. UNE-EN 15801 Conservation of cultural property. Test methods. Determination of water absorption by capillarity;AENOR,2010
5. UNE-EN 15886 Conservation of cultural property. Test methods. Colour measurement of surfaces;AENOR,2011