ONORM EN 12735-2 : 2016

Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Designations
   4.1 Material
   4.2 Temper
   4.3 Product
5 Ordering information
6 Requirements
   6.1 Composition
   6.2 Mechanical properties and grain size
   6.3 Dimensions and tolerances for smooth tubes
   6.4 Dimensions and tolerances for inner grooved tubes
   6.5 Drift expanding (for smooth tubes)
   6.6 Surface quality
   6.7 Identification of defects
7 Sampling
8 Test methods
   8.1 Analysis
   8.2 Tensile test
   8.3 Estimation of average grain size
   8.4 Drift expanding test
   8.5 Residue test
   8.6 Eddy current test
   8.7 Retests
9 Declaration of conformity and inspection documentation
   9.1 Declaration of conformity
   9.2 Inspection documentation
10 Packaging, marking and forms of delivery
   10.1 Packaging and marking
   10.2 Forms of delivery
Annex ZA (informative) Clauses of this European Standard
                       addressing essential requirements or
                       other provisions of EU Directives
Bibliography

Defines the requirements, sampling, test methods and conditions of delivery for seamless round copper tubes, smooth or inner grooved, used for heat exchangers and their internal connecting pipes in the manufacturing of refrigeration and air conditioning equipment.