I.S. EN 12807:2009
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Hardcopy , PDF
01-31-2020
English
01-01-2009
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Materials
5 Design
5.1 General requirements
5.2 Calculation of cylindrical shell thickness
5.3 Design of torispherical and semi-ellipsoidal ends
concave to pressure
5.4 Design of ends of shapes other than torispherical
and semi-ellipsoidal
5.5 Minimum wall thickness
5.6 Design of openings
5.7 Valve protection
5.8 Non-pressure containing attachments
6 Construction and workmanship
6.1 Brazing qualification
6.2 Plates and pressed parts
6.3 Brazed joints
6.4 Tolerances
6.4.1 Out of roundness
6.4.2 Straightness
6.4.3 Verticality
6.5 Heat treatment
6.6 Protective coating
6.7 Closure of openings
7 Tests and examinations
7.1 General
7.2 Types of test and evaluation of the test results
7.3 Material testing
7.4 Tensile test
7.4.1 Parent material
7.4.2 Joints
7.5 Bend test
7.5.1 Procedure
7.5.2 Requirements
7.6 Burst test under hydraulic pressure
7.6.1 Procedure
7.6.2 Requirements
7.7 Pressure test
7.7.1 Procedure
7.7.2 Requirements
7.8 Ultrasonic examination
7.8.1 Procedure
7.8.2 Assessment
7.8.3 Requirements
7.9 Macro examination
7.9.1 Procedure
7.9.2 Requirements
7.10 Visual examination of the surface of the joint
7.10.1 Procedure
7.10.2 Requirements
7.11 Fatigue test
7.11.1 Procedure
7.11.2 Requirement
8 Technical requirements for type approval
8.1 Extent of testing
8.2 Cylinder types
8.3 Type approval certificate
9 Production testing and examination requirements
9.1 Tests and examinations applicable to all cylinders
9.2 Ultrasonic examination
9.3 Macro examination
9.4 Examination of the valve boss joint
9.5 Examination of non-pressure containing joints
9.6 Unacceptable imperfections found by the ultrasonic or
macro examinations
9.7 Batch testing (Mechanical/Burst tests)
9.7.1 Batch
9.7.2 Inspection lots
9.7.3 Rate of sampling
9.7.4 Additional checks
9.8 Failure to meet mechanical and burst test requirements
9.8.1 Mechanical
9.8.2 Burst
9.8.3 Re-test
9.8.4 Resubmission of an inspection lot
10 Marking
11 Certificates
Bibliography
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