NEN EN 12420 : 2014

Foreword
1. Scope
2. Normative references
3. Definitions
4. Designations
4.1 Material
4.2 Material condition
4.3 Product
5. Ordering information
6. Requirements
6.1 Composition
6.2 Mechanical properties
6.3 Electrical properties
6.4 Resistance to dezincification
6.5 Residual stress level
6.6 Tolerances for die forgings
6.7 Tolerances for cored forgings
6.8 Tolerances for hand forgings
6.9 Surface conditions
6.10 Drawings
7. Sampling
7.1 General
7.2 Analysis
7.3 Hardness, stress corrosion resistances and
       dezincification resistance and electrical
       property tests
8. Test methods
8.1 Analysis
8.2 Hardness test
8.3 Tensile test
8.4 Electrical conductivity test
8.5 Dezincification resistance test
8.6 Stress corrosion resistance test
8.7 Retests
8.8 Rounding of results
9. Declaration of conformity and inspection
       documentation
9.1 Declaration of conformity
9.2 Inspection documentation
10. Marking, labelling, packaging
Annex A (informative) Bibliography
Annex B (informative) Recommended guidelines for
                      design
Annex C (normative) Determination of mean depth
                    of dezincification
Annex ZA (informative) Clauses of this European
                       Standard addressing essential
                       requirements for other provisions
                       of EU Directives

Defines the composition, the property requirements and tolerances on dimensions and form for copper and copper alloy die and hand forgings.