NS EN 12334 : 2001 AMD 1 2004

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
  4.1 Design requirements
  4.2 Functional characteristics
5 Test procedures
6 Declaration of compliance
7 Designation
8 Marking, preparation for storage and transportation
  8.1 Marking
  8.2 Preparation for storage and transportation
Annex A (informative) Information to be supplied by the purchaser
Annex B (normative) Comparison between EN and ISO cast iron
        material grades
Annex ZA (informative) Clauses of this European Standard addressing
         Essential requirements or other provisions of EU Directives

Applies to cast iron check valves mainly used for industrial and general purpose applications. Also applicable for other applications keeping in mind the relevant performance standards are met.