NBN EN 14811 : 2007 + A1 2010

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Information to be supplied by the purchaser
5 Steel grades
6 Dimensions, static properties, linear mass and tolerances
7 Manufacture
   7.1 Product integrity
        7.1.1 Factory production control
        7.1.2 Best practice manufacture
   7.2 Blooms
   7.3 Grooved rails and associated construction rail profiles
   7.4 Marking
        7.4.1 Rolling marks
        7.4.2 Hot stamping
        7.4.3 Other identification
        7.4.4 Exceptions
8 Acceptance tests
   8.1 Laboratory tests
        8.1.1 General
        8.1.2 Chemical composition
        8.1.3 Hydrogen
        8.1.4 Hardness test
        8.1.5 Tensile test
        8.1.6 Retests
   8.2 Dimensional and straightness tolerances
        8.2.1 Profile
        8.2.2 Straightness and twist
        8.2.3 Cutting and drilling
        8.2.4 Gauges
   8.3 Surface imperfections
        8.3.1 General
        8.3.2 Protrusions
        8.3.3 Depressions in the web and foot
        8.3.4 Depressions in the running surface
   8.4 Surface microstructural damage
   8.5 Proving and dressing of surface imperfections
   8.6 Determination of the linear mass
Annex A (normative) Grooved rail profiles and associated
        construction rail profiles
Annex B (normative) Gauges
Annex C (informative) Holes in grooved rails
Annex D (informative) Electric repair welding and electric
        conductivity of the rails
Bibliography

Defines requirements for grooved rails and associated construction rail profiles for grooved rail facilities with a linear mass of 42 kg/m and upwards for use in tram transport systems.