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BS ISO 4706:2023 – TC

BS ISO 4706:2023 – TC

$217.84

Tracked Changes. Gas cylinders. Refillable welded steel cylinders. Test pressure 60 bar and below

Published By Publication Date Number of Pages
BSI 2023 100
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PDF Catalog

PDF Pages PDF Title
60 undefined
65 Foreword
66 Introduction
67 1 Scope
2 Normative references
68 3 Terms, definitions and symbols
3.1 Terms and definitions
69 3.2 Symbols
70 4 Inspection and testing
5 Materials
5.1 General
71 5.2 Chemical composition
6 Design
6.1 General requirements
72 6.2 Valve protection
6.3 Design of openings
7 Calculation of minimum wall thickness (sidewall and ends)
7.1 Sidewall thickness
73 7.2 Design of ends concave to pressure
76 8 Construction and workmanship
8.1 Welding qualification
8.1.1 General
77 8.1.2 Base materials (pressure and non-pressure)
8.1.3 Positions of welds
8.1.4 Welding materials
8.1.5 Retesting
8.1.6 Period of effectiveness
8.1.7 Changes to welding process requiring recertification
78 8.1.8 Welder qualification tests
8.1.9 Results of welder qualification
8.2 Plates and pressed parts
8.3 Welded joints
80 8.4 Tolerances
8.4.1 Out of roundness
8.4.2 Straightness
81 8.4.3 Verticality
8.5 Non-pressure-containing attachments
8.6 Valve protection
8.7 Closure of openings
8.8 Heat treatment
82 9 Testing
9.1 Mechanical testing
9.1.1 General requirements
9.1.2 Types of test and evaluation of test results
86 9.2 Burst test under hydraulic pressure
9.2.1 Test conditions
9.2.2 Interpretation of test
9.2.3 Volumetric expansion
87 9.3 Pressure test
9.4 Radiographic and macro examination
9.4.1 Radiographic examination
88 9.4.2 Macro examination
9.4.3 Examination of flange welding
9.4.4 Examination of welding of non-pressure containing attachments
9.4.5 Unacceptable imperfections at radiographic or macro examination
9.5 Visual examination of the surface of the weld
89 10 Acceptance criteria
90 11 Type approval
91 12 Batch tests
12.1 Inspection lots
12.2 Rate of sampling
92 12.3 Quantity ≤ 3 000 cylinders water capacity less than or equal to 35 l
12.4 Quantity over 3 001 cylinders water capacity greater than 35 l
12.5 Failure to meet batch test requirements
93 13 Test/examinations for all pressure cylinders
14 Markings
15 Certificate
94 Annex A (informative) New design type approval certificate
96 Annex B (informative) Acceptance certificate
98 Bibliography

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BS ISO 4706:2023 - TC
$217.84