Ensayo de porosidad de las pizarras para cubiertas.
POROSITY TEST OF COVERING SLATES.
Buy on AENOR
91.100.15-10 / Natural stone products and materials
CTN 22/SC 1 - Mineral raw materials
NF P 32 301 (Non-equivalent)
It is cancelled by: UNE-EN 1936:2007
