NEN EN 1057 : 2006 + A1 2010

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
3.1 Seamless round copper tube
3.2 Soldering and brazing
3.3 Welding
3.4 Braze welding
3.5 Mean diameter
3.6 Deviation from circular form
3.7 Deviation from concentricity
3.8 Production batch
4 Designations
4.1 Material
4.2 Material temper
4.3 Product
5 Ordering information
6 Requirements
6.1 Composition
6.2 Mechanical properties
6.3 Dimensions and tolerances
6.4 Freedom from defects
6.5 Surface quality
6.6 Bending
6.7 Drift expanding
6.8 Flanging
7 Sampling
8 Test methods
8.1 Analysis
8.2 Tensile Test
8.3 Hardness test
8.4 Carbon content test
8.5 Carbon film test
8.6 Bending test
8.7 Drift expanding test
8.8 Flanging test
8.9 Freedom from defects tests
8.10 Retests
9 Marking and form of delivery
9.1 Marking
9.2 Form of delivery
Annexes
A (normative) Standardized dimensions
B (normative) Carbon film test
C (normative) Freedom from defects tests
D (informative) Bibliography

Defines the requirements, sampling, test methods and conditions of delivery for seamless round copper tubes. Applies to tubes having an outside diameter from 6 mm up to and including 267 mm for: - distributing networks for hot water and cold water; - hot water heating systems, including panel heating systems (under-floor, wall, overhead); - domestic gas and liquid fuel distribution; - waste water sanitation.