This part of EN 993 specifies a method for the determination of the bulk density, apparent porosity and true porosity of dense shaped refractory products. Note: For shaped insulating refractory products, the bulk density and true porosity are determined in accordance with EN 1094-4.
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Shqip