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 9809-1:2010 specifies minimum requirements for the material, design, construction and workmanship, manufacturing processes, examination and testing at manufacture of refillable quenched and tempered seamless steel gas cylinders of water capacities from 0,5 l up to and including 150 l for compressed, liquefied and dissolved gases. ISO 9809-1:2010 is applicable to cylinders with a maximum actual tensile strength Rma of less than 1 100 MPa.
If desired, cylinders of water capacity less than 0,5 l and between 150 l and 500 l can be manufactured and certified to be in compliance with ISO 9809-1:2010.
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Scope
Normative references
Terms and definitions
Symbols
Inspection and testing
Materials
General requirements
Controls on chemical composition
Typical steels
Heat treatment
Failure to meet test requirements
Design
General requirements
Limitation on tensile strength
Calculation of cylindrical shell thickness
Calculation of convex ends (heads and bases)
Calculation of concave base ends
Neck design
Foot rings
Neck rings
Design drawing
Construction and workmanship
General
Wall thickness
Surface imperfections
Ultrasonic examination
Out-of-roundness
Mean diameter
Straightness
Verticality and stability
Neck threads
Type approval procedure
General requirements
Prototype tests
General requirements
Pressure cycling test
Base check
Type approval certificate
Batch tests
General requirements
Tensile test
Bend test and flattening test
Bend test
Flattening test
Ring flattening test
Impact test
Hydraulic burst test
Test installation
Test conditions
Interpretation of test results
Acceptance criteria
Tests/examinations on every cylinder
General
Hydraulic test
Proof pressure test
Volumetric expansion test
Hardness test
Leak test
Capacity check
Certification
Marking
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Scope
Normative references
Terms and definitions
Symbols
Inspection and testing
Materials
General requirements
Controls on chemical composition
Typical steels
Heat treatment
Failure to meet test requirements
Design
General requirements
Limitation on tensile strength
Calculation of cylindrical shell thickness
Calculation of convex ends (heads and bases)
Calculation of concave base ends
Neck design
Foot rings
Neck rings
Design drawing
Construction and workmanship
General
Wall thickness
Surface imperfections
Ultrasonic examination
Out-of-roundness
Mean diameter
Straightness
Verticality and stability
Neck threads
Type approval procedure
General requirements
Prototype tests
General requirements
Pressure cycling test
Base check
Type approval certificate
Batch tests
General requirements
Tensile test
Bend test and flattening test
Bend test
Flattening test
Ring flattening test
Impact test
Hydraulic burst test
Test installation
Test conditions
Interpretation of test results
Acceptance criteria
Tests/examinations on every cylinder
General
Hydraulic test
Proof pressure test
Volumetric expansion test
Hardness test
Leak test
Capacity check
Certification
Marking