NEN EN 771-2 : 2011 + A1 2015

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Materials and manufacture
5 Requirements for calcium silicate masonry units
  5.1 General
  5.2 Dimensions and tolerances
  5.3 Configuration
  5.4 Dry density
  5.5 Compressive strength
  5.6 Thermal properties
  5.7 Durability
  5.8 Water vapour permeability
  5.9 Reaction to fire
  5.10 Water absorption
  5.11 Moisture movement
  5.12 Bond strength
6 Description, designation and classification of calcium
  silicate masonry units
  6.1 Description and designation
  6.2 Classification
7 Marking
8 Evaluation of conformity
  8.1 General
  8.2 Initial type tests
  8.3 Factory production control
Annex A (normative) Sampling for initial type testing
         and for independent testing of consignments
Annex B (normative) Cutting schemes
Annex C (normative) Tolerances on accessory units
Annex D (informative) Classification systems
Annex ZA (informative) Clauses of this European standard
         addressing the provisions of the EU Construction
         Products Directive

Defines the characteristics and performance requirements of calcium silicate masonry units for which the main intended uses are inner walls, outer walls, cellars, foundations and external chimney masonry.