This European Standard specifies test methods for slate and carbonate slate for roofing and wall cladding. It is applicable to natural roofing products as defined in EN 12326-1:2004 used for assembly into discontinuous roofs and external wall cladding.
This document (EN 12326-2:2011) has been prepared by Technical Committee CEN/TC 128 "Roof covering products for discontinuous laying and products for wall cladding", the secretariat of which is held by NBN (Belgium).
The responsible national committee is Working Committee NA 062-03-12 AA "Schiefer; Anforderungen und Prüfverfahren" ("Roofing slate; Specifications and methods of test") of the Materials Testing Standards Committee (NMP) at DIN.
The following modifications have been made with respect to DIN EN 12326-2:2004-11:
a) clause 10 "Determination of the modulus of rupture, and characteristic modulus of rupture", clause 12 "Freeze-thaw test" and clause 13 "Determination of the apparent calcium carbonate and non carbonate carbon content by catalytic thermal decomposition" have been technically revised; b) new informative Annex B "Petrographic examination of origin and identification of slate" has been added.