This document specifies the requirements for periodic inspection and testing to verify the integrity of cylinders and tubes to be re-introduced into service for a further period of time.
This document is applicable to seamless steel and seamless aluminium-alloy transportable gas cylinders (single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l and to seamless steel and seamless aluminium-alloy transportable gas tubes (single or those that comprise a bundle) intended for compressed and liquefied gases under pressure, of water capacity greater than 150 l. It also applies, as far as practical, to cylinders of less than 0,5 l water capacity.
This document does not apply to the periodic inspection and maintenance of acetylene cylinders or to the periodic inspection and testing of composite cylinders.
NOTE       Unless noted by exception, the use of the word "cylinder" in this document refers to both cylinders and tubes.

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This document specifies the requirements for the periodic inspection and testing of welded aluminium-alloy, carbon and stainless steel gas cylinders of water capacity from 0,5 l to 150 l intended for compressed and liquefied gas service under pressure and to verify the integrity of such gas cylinders for further service.
It also applies, as far as is practical, to cylinders of less than 0,5 l water capacity and greater than 150 l up to 450 l.
This document does not apply to the periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wrapped) cylinders.
It is primarily intended for use with cylinders containing industrial gases other than liquefied petroleum gas (LPG). This document may also be applicable to LPG. Requirements for LPG applications are also provided in ISO 10464.

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ISO 24431:2016 specifies the inspection requirements at the time of filling, and applies to seamless or welded transportable gas cylinders made of steel or aluminium-alloy (Type 1), and for composite transportable gas cylinders (Types 2 to 5 inclusive) for liquefied or compressed gases of a water capacity up to 150 l. It may be applicable to cylinders and tubes with a water capacity between 150 l and 450 l, provided they are inspected and filled as individual cylinders and tubes.
ISO 24431:2016 does not apply to acetylene cylinders, bundles of cylinders, tubes, multiple-element gas container (MEGCs) or battery vehicles.
ISO 24431:2016 may also be applicable to LPG. For specific LPG applications, refer to ISO 10691.
For cylinders manifolded in bundles, refer to ISO 11755.

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This European Standard specifies requirements for using a combination of appropriate in situ (without dismantling), non-destructive examination (NDE) techniques, for example visual examination, acoustic emission testing [AT] and ultrasonic testing [UT] when periodically inspecting and testing seamless steel pressure vessels (tubes) with a water capacity between 150 l and 3 000 l, used for compressed and liquefied gases for a further period of service.
This European Standard is applicable only to pressure vessels (tubes) installed in locations where attempting any removal from their containing superstructure would be hazardous, or where the downtime required to remove them would hinder a continuous operation of a plant or service.
This European Standard does not apply to pressure receptacles used for the transport of gases as described under the TPED.
This European Standard only applies to pressure vessel (tube) assemblies where the designs permit all necessary inspections stipulated.

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ISO 11623:2015 specifies the requirements for periodic inspection and testing and to verify the integrity for further service of hoop-wrapped and fully-wrapped composite transportable gas cylinders, with aluminium-alloy, steel or non-metallic liners or of linerless construction (Types 2, 3, 4, and 5), intended for compressed, liquefied or dissolved gases under pressure, of water capacity from 0,5 l up to 450 l.
ISO 11623:2015 is written to address the periodic inspection and testing of composite cylinders constructed to ISO 11119‑1, ISO 11119‑2, and ISO 11119‑3 standards and can be applied to other composite cylinders designed to comparable standards when authorized by the competent authority.
As far as practicable, this International Standard also can be applied to cylinders of less than 0,5 l water capacity.

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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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This standard: - specifies the inspection requirements at the time of filling and applies to seamless or welded transportable gas cylinders made of steel or aluminium alloy for liquefied gases (excluding acetylene and LPG) of water capacity from 0,5 litre up to 150 litres. It also
applies, as far as practicable, to cylinders of less than 0,5 litre water capacity; - does not apply to manifolded bundles or manifolded trailer cylinders.

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This standard: - specifies the inspection requirements at the time of filling and applies to seamless or welded transportable gas cylinders made of steel or aluminium alloy for compressed gases (excluding acetylene) of water capacity from 0,5 litre up to 150 litres. It also
applies, as far as practicable, to cylinders of less than 0,5 litre water capacity; - does not apply to manifolded bundles or manifolded trailer cylinders.

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This European Standard specifies the requirements for periodic inspection and testing of
seamless steel transportable gas cylinders (single or those from bundles) intended for
compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l.
NOTE As far as practicable, this standard may also be applied to cylinders of less than 0,5 l water
capacity and for tubes up to 3 000 l water capacity.

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This European Standard specifies the requirements for periodic inspection and testing of seamless aluminium alloy transportable gas cylinders (single or those from bundles) intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l.
NOTE  As far as practicable, this standard may also be applied to cylinders of less than 0,5 l water capacity.
This standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders to be reintroduced into service for a further period of time. It also defines a procedure to qualify existing gas cylinders for free movement between member states of the European Union (see annex A).
This standard does not apply to periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wrapped) aluminium alloy cylinders.

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This European Standard specifies the requirements for periodic inspection and testing of seamless steel transportable gas cylinders (single or those from bundles) intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l.
NOTE   As far as practicable, this standard may also be applied to cylinders of less than 0,5 l water capacity.
This standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders to be reintroduced into service for a further period of time. It also defines a procedure to qualify existing gas cylinders for free movement between member states of the European Union (see annex A).
This standard does not apply to periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wrapped) steel cylinders.

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This European Standard specifies the requirements for periodic inspection and testing of welded, carbon steel transportable gas cylinders intended for compressed and liquefied gases under pressure, of water capacity from 0,5 l up to 150 l.
NOTE   As far as practicable, this standard may also be applied to cylinders of less than 0,5 l water capacity.
This Standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders to be reintroduced into service for a further period of time. It also defines a procedure to qualify existing gas cylinders for free movement between member states of the European Union (see annex A).
This standard does not apply to periodic inspection and testing of acetylene cylinders or composite (fully wrapped or hoop-wrapped) steel cylinders.
This standard is primarily for industrial gases other than LPG but may also be applied for LPG. However for dedicated LPG cylinders, see EN 1440, Transportable refillable welded steel cylinders for liquefied petroleum gas (LPG) - Periodic requalification prepared by CEN/TC 286 - Liquefied petroleum gas equipment and accessories.

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This standard deals with hoop wrapped and fully wrapped composite transportable gas cylinders intended for permanent, liquefied or dissolved gases under pressure, of water capacity from 0.5 litre up to 150 litres; it also applies as far as practicable to cylinders of less than 0.5 litre and greater than 150 litre water capacity. This standard specifies the requirements for periodic inspection and testing to verify the integrity of such gas cylinders for further service.

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This European Standard specifies the requirements for the periodic inspection and testing of cylinder bundles containing compressed, liquefied and dissolved gas. It is also applicable to cylinder bundles containing acetylene.
This European Standard includes information regarding the maintenance of cylinder bundles.
This European Standard does not cover the requirements for cylinder bundles when they are a part of a battery vehicle. For some specific application, e.g. offshore, additional requirements may apply.

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This European Standard specifies seamless and welded steel or seamless aluminium alloy cylinders intended for the transport of acetylene in cylinders of water capacity up to 150 l and specifies the requirements for the periodic inspection and maintenance of acetylene cylinders, regardless of the method of manufacture of the shell.
This European Standard also applies to solvent free acetylene cylinders.
This European Standard also specifies a procedure to qualify existing gas cylinders for free movement between member states of the European Union (see annex A).

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This European Standard specifies minimum requirements which reflect current practice and experience for inspection at time of filling of cylinders of water capacity up to 150 litres for the storage and transport of dissolved acetylene gas under pressure. The standard is not applicable to manifolded bundles or manifolded trailer cylinders. Aspects related to the inspection or testing of the porous mass, are not covered in this standard.

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