UNI EN 15302 : 2011

Foreword
Introduction
1 Scope
2 Normative references
3 Symbols
4 Principle of determining the equivalent conicity
5 Description of the reference procedure
6 Benchmark calculation
Annex A (informative) - Example of presentation of [Delta]r
  function and conicity
Annex B (informative) - Example of method for determining
  the equivalent conicity by integration of the nonlinear
  differential equation
Annex C (informative) - Example of method for determining
  the equivalent conicity by linear regression of the [Delta]r
  function
Annex D (normative) - Reference profiles
Annex E (normative) - Calculation results with reference
  profiles
Annex F (normative) - Tolerances on equivalent conicity
Annex G (informative) - Examples of calculation results
  with introduced errors
Annex H (informative) - Guideline for application of errors
Annex I (informative) - Guidelines for application
Annex ZA (informative) - Relationship between this European
  Standard and the Essential Requirements of EU Directive
  2008/57/EC of the European Parliament and of the
  Council of 17 June 2008 on the interoperability of
  the rail system within the Community (Recast)
Bibliography

Covers reference profiles, profile combinations, tolerances and reference results with tolerance limits, which allow the user to assess the acceptability of a measuring and calculation system including random- and grid-errors of the measuring system.