ISO 20475:2018 specifies the requirements for the periodic inspection and testing of cylinder bundles containing compressed, liquefied and dissolved gas. NOTE Additional requirements for acetylene cylinder bundles are provided in Annex A. ISO 20475:2018 also establishes general principles for the maintenance of cylinder bundles. ISO 20475:2018 is not applicable to acetylene bundles with solvent-free acetylene cylinders. ISO 20475:2018 excludes the requirements for cylinder bundles when they are a part of a battery vehicle. For some specific applications, e.g. offshore, additional requirements can apply.
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Sisällysluettelo
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Procedures for periodic inspections and tests
4.1 General
4.2 Periodic inspection and tests
5 Inspections and tests
5.1 General
5.2 Identification of cylinders/bundles and preparation for inspections and tests
5.3 Depressurization of manifold and individual cylinders
5.4 Disassembly of the bundle
5.5 Periodic inspection and testing of cylinders
5.6 Inspection of the frame, manifold and valve condition
5.7 Bundle reassembly and testing
6 Stamp marking
7 Documentation
Annex A Additional requirements for the periodic inspection and testing of acetylene bundles (normative)
ISO 10286:2015 Gas cylinders -- Terminology
ISO 10460:2005 Gas cylinders -- Welded carbon-steel gas cylinders -- Periodic inspection and testing
ISO 10462:2013 Gas cylinders -- Acetylene cylinders -- Periodic inspection and maintenance
ISO 10286:2015 Gas cylinders -- Terminology
ISO 10460:2005 Gas cylinders -- Welded carbon-steel gas cylinders -- Periodic inspection and testing
ISO 10462:2013 Gas cylinders -- Acetylene cylinders -- Periodic inspection and maintenance
ISO 10961:2010 Gas cylinders -- Cylinder bundles -- Design, manufacture, testing and inspection
ISO 11372:2011 Gas cylinders -- Acetylene cylinders -- Filling conditions and filling inspection
ISO 11623:2015 Gas cylinders -- Composite construction -- Periodic inspection and testing
ISO 14113:2013 Gas welding equipment -- Rubber and plastics hose and hose assemblies for use with industrial gases up to 450 bar (45 MPa)
ISO 15996:2017 Gas cylinders -- Residual pressure valves -- Specification and type testing of cylinder valves incorporating residual pressure devices
ISO 18119:2018 Gas cylinders -- Seamless steel and seamless aluminium-alloy gas cylinders and tubes -- Periodic inspection and testing
ISO 22434:2006 Transportable gas cylinders -- Inspection and maintenance of cylinder valves
ISO 25760:2009 Gas cylinders -- Operational procedures for the safe removal of valves from gas cylinders