Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principles
  4.1 General
  4.2 Dimensions
  4.3 Angles
  4.4 Warp
      4.4.1 Cup
      4.4.2 Bow
      4.4.3 Spring
  4.5 Lipping
5 Equipment
  5.1 General
  5.2 Equipment to measure the dimensions
      5.2.1 Vernier calliper
      5.2.2 Micrometer
      5.2.3 Ruler
  5.3 Equipment to measure angle values
      5.3.1 General
      5.3.2 Equipment for square cut elements
      5.3.3 Equipment for mitre cut elements
  5.4 Equipment to measure warp
      5.4.1 Equipment to measure cup
      5.4.2 Calibration of the gauge
      5.4.3 Equipment to measure bow and spring
      5.4.4 Equipment to measure lipping
      5.4.5 Conditioning equipment, if relevant
6 Procedure
  6.1 Dimensions and shape
  6.2 Conditioning
  6.3 Measurement and recording
  6.4 Dimensions
      6.4.1 Length and width of the element
      6.4.2 Thickness of the element
  6.5 Additional dimensions, if relevant
      6.5.1 Overall dimensions
      6.5.2 Depth of the groove
      6.5.3 Width of the tongues
      6.5.4 Undercut
      6.5.5 Thickness of the tongue
      6.5.6 Width of the groove
      6.5.7 Thickness of the upper lip
      6.5.8 Thickness above the groove
  6.6 Angles
      6.6.1 Squareness
      6.6.2 Mitre cuts
  6.7 Warp
      6.7.1 Cup
      6.7.2 Bow
      6.7.3 Spring
      6.7.4 Lipping
7 Expression of results
  7.1 Dimensions
      7.1.1 Length and width of the element
      7.1.2 Thickness of the element
  7.2 Additional dimensions, if relevant
      7.2.1 Overall dimensions
      7.2.2 Depth of the grooves
      7.2.3 Width of the tongue
      7.2.4 Undercut
      7.2.5 Thickness of the tongue
      7.2.6 Width of the groove
      7.2.7 Thickness of the upper lip
      7.2.8 Thickness above the groove
  7.3 Angle measurement
      7.3.1 Squareness
      7.3.2 Mitre cuts
  7.4 Warp
      7.4.1 Cup
      7.4.2 Bow
      7.4.3 Spring
      7.4.4 Lipping
8 Test report
Annex A (informative) Apparatus for square cut elements
Annex B (normative) Test rig to measure cup