ISO 11118:2015 specifies minimum requirements for the material, design, inspections, construction and workmanship, manufacturing processes, and tests at manufacture of non-refillable metallic gas cylinders of welded, brazed, or seamless construction for compressed and liquefied gases including the requirements for their non-refillable sealing devices and their methods of testing. NOTE The specific gases permitted in cylinders constructed to this International Standard can be limited by national or international requirements. This International Standard is applicable to cylinders where a) the test pressure does not exceed 250 bar (i.e. ph = 250 bar) for liquefied gases and 450 bar for compressed gases; b) the product of the test pressure and the water capacity does not exceed 1 000 bar·litres (i.e. ph V = 1 000 bar L); c) the test pressure exceeds 45 bar and the water capacity does not exceed 5 l (i.e. for ph > 45 bar, then V = 5 l).
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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols
5 Materials
5.1 General requirements
5.2 Material types
5.3 Chemical compositions
6 Inspection and testing
7 Design
7.1 General requirements
7.2 Calculation of pressure containing parts
7.3 Design drawings
8 Construction and workmanship
8.1 Construction
8.2 Workmanship
9 Type approval procedure
9.1 General requirements
9.2 Prototype tests
9.3 Design type approval
10 Batch tests
10.1 General requirements
10.2 Failure to meet test requirements
11 Tests on every cylinder
12 Markings
12.1 General
12.2 Manufacturing and operational markings
12.3 Other markings
13 Test reports and certificate of compliance
Annex A Non-refillable sealing devices — Specifications and prototype testing (normative)
Annex B Type approval certificate (informative)
Annex C Certificate of compliance (informative)
Annex D Yield point elongation (YPE) (informative)
ISO 10156:2010 Gases and gas mixtures -- Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets
ISO 10156:2017 Gas cylinders -- Gases and gas mixtures -- Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets
ISO 10297:2014 Gas cylinders -- Cylinder valves -- Specification and type testing
ISO 10156:2010 Gases and gas mixtures -- Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets
ISO 10156:2017 Gas cylinders -- Gases and gas mixtures -- Determination of fire potential and oxidizing ability for the selection of cylinder valve outlets
ISO 10297:2014 Gas cylinders -- Cylinder valves -- Specification and type testing
ISO 11114-1:2012 Gas cylinders -- Compatibility of cylinder and valve materials with gas contents -- Part 1: Metallic materials
ISO 11114-2:2013 Gas cylinders -- Compatibility of cylinder and valve materials with gas contents -- Part 2: Non-metallic materials
ISO 14732:2013 Welding personnel -- Qualification testing of welding operators and weld setters for mechanized and automatic welding of metallic materials
ISO 15613:2004 Specification and qualification of welding procedures for metallic materials -- Qualification based on pre-production welding test
ISO 15614-1:2004 Specification and qualification of welding procedures for metallic materials -- Welding procedure test -- Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 15614-1:2017 Specification and qualification of welding procedures for metallic materials -- Welding procedure test -- Part 1: Arc and gas welding of steels and arc welding of nickel and nickel alloys
ISO 20703:2006 Gas cylinders -- Refillable welded aluminium-alloy cylinders -- Design, construction and testing
ISO 3651-2:1998 Determination of resistance to intergranular corrosion of stainless steels -- Part 2: Ferritic,austenitic and ferritic-austenitic (duplex) stainless steels -- Corrosion test in media containing sulfuric acid
ISO 4706:2008 Gas cylinders -- Refillable welded steel cylinders -- Test pressure 60 bar and below
ISO 6892-1:2009 Metallic materials -- Tensile testing -- Part 1: Method of test at room temperature
ISO 6892-1:2019 Metallic materials -- Tensile testing -- Part 1: Method of test at room temperature
ISO 7866:2012 Gas cylinders -- Refillable seamless aluminium alloy gas cylinders -- Design, construction and testing
ISO 9329-1:1989 Seamless steel tubes for pressure purposes -- Technical delivery conditions -- Part 1: Unalloyed steels with specified room temperature properties
ISO 9606-1:2012 Qualification testing of welders -- Fusion welding -- Part 1: Steels
ISO 9809-1:2010 Gas cylinders -- Refillable seamless steel gas cylinders -- Design, construction and testing -- Part 1: Quenched and tempered steel cylinders with tensile strength less than 1 100 MPa
ISO 9809-4:2014 Gas cylinders -- Refillable seamless steel gas cylinders -- Design, construction and testing -- Part 4: Stainless steel cylinders with an Rm value of less than 1 100 MPa