EN 12326-2:2011

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Surveillance sampling procedure
5 Determination of the length and width and the deviation
   from the specified length and width
6 Determination of the amount by which the edges
   deviate from a straight edge
7 Determination of the rectangularity of slates
8 Determination of the thickness of individual slates
9 Determination of the deviation from flatness
10 Determination of the modulus of rupture, and characteristic
   modulus of rupture
11 Water absorption test
12 Freeze-thaw test
13 Determination of the apparent calcium carbonate and
   non carbonate carbon content by catalytic thermal
   decomposition
14 Sulfur dioxide exposure tests
15 Thermal cycle test
16 Petrographic examination
Annex A (informative) - Petrographic interpretation
Annex B (informative) - Petrographic examination of origin
        and identification of slate
Bibliography

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 used for assembly into discontinuous roofs and external wall cladding.NOTEWhere the term "slate" is used in this document it means slate and carbonate slate unless otherwise indicated.