NBN EN 520 : 2005 + A1 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 requirements
5 Test methods
6 Evaluation of conformity
7 Designation of plasterboards
8 Marking, labelling and packaging
Annex A (informative) - Sampling procedure for testing
  A.1 General
  A.2 Sampling procedure
       A.2.1 Random sampling
       A.2.2 Representative sampling
Annex B (normative) - Conditions for reaction to fire classification
        of gypsum plasterboards without further testing
  B.0 Introduction
  B.1 End use application
       B.1.1 General
       B.1.2 Mechanically fixed to a supporting sub-structure
       B.1.3 Directly fixed or bonded to a solid substrate
             (dry lining system)
Annex C (normative) - Mounting and fixing in the test according
        to EN 13823 (SBI test)
  C.0 Introduction
  C.1 General applications
  C.2 Limited applications regarding joint filling
  C.3 Limited applications regarding wood based substrates
Annex ZA (informative) - Clauses of this European Standard addressing
         provisions of EU Construction Products Directive
  ZA.1 Scope and relevant characteristics
  ZA.2 Attestation and declaration of conformity of gypsum plasterboards
  ZA.3 CE marking and labeling
Bibliography

Describes the characteristics and performance of gypsum plasterboards intended to be used in building construction works including those intended for secondary manufacturing operations. It includes boards designed to receive either direct surface decoration or gypsum plaster.