NEN-EN 14081-3:2012+A1:2018 en

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Requirements for the operation, calibration and maintenance
   of a grading machine
6 Additional factory production control requirements for
   machine controlled systems
   6.1 General
   6.2 Requirements for strength grades with a characteristic
       bending strength above 30 N/mm[2]
7 Additional factory production control requirements for output
   controlled systems
   7.1 General
   7.2 Production control
Annex A (normative) Example of cusum control charts
Annex B (normative) Requirements for using control planks
      B.1 General
      B.2 Production control
      B.3 The procedure for the use of a control plank
      B.4 The non-continuous indicating property
      B.5 Recorded usage of a control plank
      B.6 Care of a control plank when not in use
      B.7 Discarded control planks

NEN-EN 14081-3+A1 specifies requirements additional to those given in EN 14081-1 for factory production control of machine graded structural timber with rectangular cross-sections shaped by sawing, planing or other methods, and having deviations from the target sizes corresponding to EN 336.