BS ISO 20703:2006
Current
The latest, up-to-date edition.
Gas cylinders. Refillable welded aluminium-alloy cylinders. Design, construction and testing
Hardcopy , PDF
English
30-04-2007
Foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and symbols
3.1 Terms and definitions
3.2 Symbols
4 Materials
4.1 General provisions
4.2 Heat treatment
4.3 Gas/material compatibility
5 Design
5.1 General provisions
5.2 Calculation of wall thickness
5.3 Design of convex ends (heads and bases)
5.4 Neck design
5.5 Foot-rings
5.6 Neck-rings
5.7 Shroud
5.8 Design drawing
6 Construction and workmanship
6.1 Seamless bodies
6.2 Welding
6.3 Non-destructive examination of welds
6.4 Surface defects
6.5 Neck threads
6.6 Out-of-roundness
6.7 Straightness
6.8 Eccentricity
6.9 Stability
7 Tests and examinations
7.1 General
7.2 Mechanical tests
7.3 Hydraulic burst test
7.4 Pressure-cycling test
7.5 Hydraulic test
7.6 Check on the homogeneity of a batch
7.7 Leakage test
7.8 Capacity check
7.9 Examination for neck folds
8 Conformity evaluation
9 Identification marks
10 Records
Annex A (normative) Corrosion tests
Annex B (normative) New design type testing and production
testing
Annex C (normative) Description, evaluation of manufacturing
defects and conditions for rejection of welded
aluminium-alloy gas cylinders at time of visual
inspection
Annex D (informative) Examples of new design type approval and
production test certificates
Bibliography
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