NEN EN 13226 : 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Specific product requirements
  5.1 Wood species
  5.2 Appearance
      5.2.1 General rules
      5.2.2 Rules for the most commonly used species
      5.2.3 Free class
      5.2.4 Natural colours
  5.3 Moisture content
  5.4 Geometrical characteristics
      5.4.1 General
      5.4.2 Nominal dimensions
      5.4.3 Limit deviations
      5.4.4 Machining
  5.5 Technical specifications and properties
      5.5.1 Technical characteristics required when in
            service
      5.5.2 Specific site requirements
      5.5.3 Appearance
      5.5.4 Renovation and repair
6 Marking
Annex A (informative) Botanical and trade names of the most
         commonly used species for wood flooring (hardware
         and software species)
Annex B (normative) Principles for the classification of
         the free class
Bibliography

Defines the characteristics of solid parquet elements with grooves and/or tongues for internal use as flooring.