SIST EN ISO 18119:2019/A1:2021

Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes - Periodic inspection and testing - Amendment 1 (ISO 18119:2018/Amd 1:2021)

Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung - Änderung 1 (ISO 18119:2018/Amd 1:2021)

No scope available

Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans soudure - Contrôles et essais périodiques - Amendement 1 (ISO 18119:2018/Amd 1:2021)

Plinske jeklenke - Plinske jeklenke in velike jeklenke iz celega iz jekla in aluminijevih zlitin - Periodični pregled in preskušanje - Dopolnilo A1 (ISO 18119:2018/Amd 1:2021)

General Information

• Status: Published
• Public Enquiry End Date: 01-Aug-2020
• Publication Date: 19-Aug-2021
• ICS: 23.020.35 - Gas cylinders
• ICS: 77.150.10 - Aluminium products
• Technical Committee: TLP - Pressure vessels
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-Jun-2021
• Due Date: 15-Aug-2021
• Completion Date: 20-Aug-2021
• Ref Project: EN ISO 18119:2018/A1:2021 - Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes - Periodic inspection and testing - Amendment 1 (ISO 18119:2018/Amd 1:2021)

Relations

• Amends: SIST EN ISO 18119:2019 - Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes - Periodic inspection and testing (ISO 18119:2018)
• Effective Date: 01-Sep-2021

Overview

EN ISO 18119:2018/A1:2021 is an amendment to the international standard on periodic inspection and testing of seamless steel and seamless aluminium‑alloy gas cylinders and tubes. Adopted by CEN in May 2021, Amendment 1 (A1) updates inspection criteria, adds terminology and clarifies acceptance/rejection guidance for defects found during internal and external inspection. The amendment is intended for national adoption across CEN member bodies and works alongside the base ISO 18119:2018.

Key topics and technical requirements

• New abbreviated term: introduction of the flaw depth ratio (a/t) expressed as a percentage for defect assessment.
• Hazard‑specific inspection: heightened attention required for cylinders containing flammable, oxidizing, corrosive or toxic gases during internal inspection; Annex C now lists gases corrosive to steel cylinder material.
• Corrosiveness note clarified: corrosiveness in Table A.1 is defined relative to human tissue (ISO 13338), not necessarily cylinder material.
• Ultrasonic thickness checks: when defects reach limiting depth or extent, remaining wall thickness must be verified with ultrasonic measurement; authorities may authorize lower-than-guaranteed wall thickness based on severity and safety factors.
• Defect sizing guidance: ISO/TR 22694 and Figures B.6/B.7 are referenced to evaluate acceptable flaw sizes. Specific allowances include:
  • If a/t ≤ 5%, the flaw length may be extended for the cylinder’s parallel length.
  • For seamless steel and aluminium‑alloy cylinders, linear flaws with depth ≤ 0.05 t are acceptable “whatever the length” (see Figures B.6/B.7).
  • Figure B.7 includes length markers (15 mm, 30 mm, 100 mm) used in aluminium‑alloy evaluation.
• Annex update: Annex C retitled to emphasize gases corrosive to steel cylinder material.

Applications and who uses it

This amendment is essential for:

• Inspection bodies and test stations performing periodic inspections and decision-making on accept/reject.
• Cylinder manufacturers and refurbishers implementing inspection regimes and repair criteria.
• Gas suppliers, transporters and end users managing cylinder maintenance, risk assessment and compliance.
• Regulators and competent authorities setting national acceptance thresholds and authorizations. Practical uses include defect assessment, ultrasonic wall‑thickness verification, risk mitigation for hazardous gas services, and harmonising national inspection practices with international requirements.

Related standards

• ISO 18119:2018 (base document)
• ISO/TR 22694 (guidance on defect evaluation)
• ISO 13338 (corrosiveness reference)
• CEN/CENELEC implementation rules (national adoption)

For authoritative procedures and full technical details, obtain the complete standard from your national standards body or CEN.

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2021
Plinske jeklenke - Plinske jeklenke in velike jeklenke iz celega iz jekla in
aluminijevih zlitin - Periodični pregled in preskušanje - Dopolnilo A1 (ISO
18119:2018/Amd 1:2021)
Gas cylinders - Seamless steel and seamless aluminium-alloy gas cylinders and tubes -
Periodic inspection and testing - Amendment 1 (ISO 18119:2018/Amd 1:2021)
Gasflaschen - Nahtlose Gasflaschen und Großflaschen aus Stahl und
Aluminiumlegierungen - Wiederkehrende Inspektion und Prüfung - Änderung 1 (ISO
18119:2018/Amd 1:2021)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en alliages d'aluminium, sans
soudure - Contrôles et essais périodiques - Amendement 1 (ISO 18119:2018/Amd
1:2021)
Ta slovenski standard je istoveten z: EN ISO 18119:2018/A1:2021
ICS:
23.020.35 Plinske jeklenke Gas cylinders
77.150.10 Aluminijski izdelki Aluminium products
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 18119:2018/A1
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2021
EUROPÄISCHE NORM
ICS 23.020.35
English Version
Gas cylinders - Seamless steel and seamless aluminium-
alloy gas cylinders and tubes - Periodic inspection and
testing - Amendment 1 (ISO 18119:2018/Amd 1:2021)
Bouteilles à gaz - Bouteilles et tubes à gaz en acier et en Gasflaschen - Nahtlose Gasflaschen und Großflaschen
alliages d'aluminium, sans soudure - Contrôles et aus Stahl und Aluminiumlegierungen -
essais périodiques - Amendement 1 (ISO Wiederkehrende Inspektion und Prüfung - Änderung 1
18119:2018/Amd 1:2021) (ISO 18119:2018/Amd 1:2021)
This amendment A1 modifies the European Standard EN ISO 18119:2018; it was approved by CEN on 14 May 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of
this amendment into the relevant national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 18119:2018/A1:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 18119:2018/A1:2021) has been prepared by Technical Committee ISO/TC 58
"Gas cylinders" in collaboration with Technical Committee CEN/TC 23 “Transportable gas cylinders” the
secretariat of which is held by BSI.
This Amendment to the European Standard EN ISO 18119:2018 shall be given the status of a national
standard, either by publication of an identical text or by endorsement, at the latest by November 2021,
and conflicting national standards shall be withdrawn at the latest by November 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 18119:2018/Amd 1:2021 has been approved by CEN as EN ISO 18119:2018/A1:2021
without any modification.
INTERNATIONAL ISO
STANDARD 18119
First edition
2018-05
AMENDMENT 1
2021-05
Gas cylinders — Seamless steel
and seamless aluminium-alloy gas
cylinders and tubes — Periodic
inspection and testing
AMENDMENT 1
Bouteilles à gaz — Bouteilles et tubes à gaz en acier et en alliages
d'aluminium, sans soudure — Contrôles et essais périodiques
AMENDEMENT 1
Reference number
ISO 18119:2018/Amd.1:2021(E)
©
ISO 2021
ISO 18119:2018/Amd.1:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized oth
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