EN 15800:2008

Foreword
1 Scope
2 Normative references
3 Representation
4 Definitions, symbols, units and terms
5 Requirements
  5.1 Coiling direction
  5.2 Spring ends
  5.3 Solid length L[c]
  5.4 Material
  5.5 Surface Treatment
6 Quality grades
  6.1 Permissible variations of Quality Grades
  6.2 Permissible variations of wire diameters d
  6.3 Permissible variations A[D] for coil
      diameter D of unloaded spring
  6.4 Permissible variations A[F] for spring
      force F at given spring length L
  6.5 Permissible variations A[L0] for
      length L[0] of unloaded spring
  6.6 Permissible variations e[1] and e[2] of
      unloaded springs with ends closed and ground
  6.7 Production margin
7 Testing
  7.1 Static load testing
  7.2 Characteristic
  7.3 Test load for pressing to solid length
      (settling testing)
Annex A (informative) - Declaration and formulas
Annex B (informative) - Example - Specification
        for a Cylindrical Helical Compression Spring
Bibliography