UNI EN 12613 : 2009

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Material
5 Requirements
  5.1 Colour
  5.2 Appearance and colour fastness
  5.3 Dimensional characteristics
  5.4 Laying characteristics
       5.4.1 General
       5.4.2 Tensile withstand strength
       5.4.3 Transversal rigidity
       5.4.4 Flatness
  5.5 Visual warning characteristics
  5.6 Resistance against micro-organisms
  5.7 Resistance to UV-light
  5.8 Temperature stability
  5.9 Resistance of printing
  5.10 Marking
6 Test methods
  6.1 Test pieces and test conditions
  6.2 Colour fastness
  6.3 Tensile withstand strength
       6.3.1 Test pieces
       6.3.2 Apparatus
       6.3.3 Procedure
  6.4 Transversal rigidity
  6.5 Flatness
7 Factory production control tests
8 Test report
Annex A (normative) - Determination of visual warning
        characteristics by simulation of trench opening
  A.1 Principle
  A.2 Apparatus
  A.3 Test pieces
  A.4 Conditioning and test temperature
  A.5 Procedure
  A.6 Test conditions for warning devices wider than 500 mm
Annex B (normative) - Chemical resistance to ammonium sulphide
  B.1 Apparatus
  B.2 Preparation of test pieces
  B.3 Procedure

Describes the material, mechanical and functional (fitness for purpose) requirements for warning devices with visual characteristics manufactured from plastics, intended to indicate the presence of cables and piping systems buried in ground when opening trenches and more generally during digging work.