SIST EN ISO 9090:2020
(Main)Gas tightness of equipment for gas welding and allied processes (ISO 9090:2019)
Gas tightness of equipment for gas welding and allied processes (ISO 9090:2019)
This document specifies the maximum external gas leakage rates which are acceptable for equipment used for welding, cutting and allied processes and provides the procedures of measurement.
It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plant.
NOTE Specific requirements on the test method and conditions/procedure for measurement of the maximum external leakages can be given in individual standards, e.g. ISO 9012 for air-aspirated hand blowpipes. Concerning the method and the conditions to be applied, the individual standard takes precedence over this document. The maximum external leakages according to this document apply.
Gasdichtheit von Geräten für Gasschweißen und verwandte Verfahren (ISO 9090:2019)
Dieses Dokument legt die maximalen äußeren Gasleckraten fest, die für Geräte für Gasschweißen, Schneiden und verwandte Verfahren zulässig sind und nennt die Verfahren zur Messung.
Es gilt für einzelne Teile, die von der Gasversorgung bis zum Brenner ab Verbindungspunkt des Schlauches (Abgang des Flaschenventils oder Verbindungspunkt der Gasversorgungsanlage) verwendet werden. Es gilt nicht für Gasversorgungsanlagen selbst.
ANMERKUNG Spezifische Anforderungen an die Prüfverfahren und Randbedingungen/ Vorgehensweise zur Messung der maximalen äußeren Leckagen können in separaten Normen angegeben sein, z. B. in ISO 9012 für Handbrenner für angesaugte Luft. Im Hinblick auf das Verfahren und die Randbedingungen, die eingehalten werden müssen, hat die jeweilige Norm Vorrang vor diesem Dokument. Es gelten die maximalen äußeren Leckagen nach diesem Dokument.
Étanchéité aux gaz des appareils pour soudage aux gaz et techniques connexes (ISO 9090:2019)
Le présent document spécifie les niveaux de fuite de gaz externe maximale admissible pour les appareils utilisés pour le soudage, le coupage et les techniques connexes et fournit des méthodes de mesure.
Il s'applique aux composants individuels utilisés pour alimenter un chalumeau, à partir du point de raccordement du tuyau (sortie du robinet de la bouteille ou point de raccordement à une installation de distribution de gaz). Il ne s'applique pas aux installations de distribution de gaz.
NOTE Des exigences spécifiques sur la méthode d'essai et les conditions/procédure de mesure des fuites externes maximales peuvent être données dans les normes, e.g. l'ISO 9012 pour les chalumeaux manuels aéro-gaz à air aspiré. Au sujet de la méthode et des conditions à appliquer, la norme prend le dessus sur le présent document. Les fuites externes maximales selon le présent document s'appliquent.
Tesnost opreme za plamensko varjenje in sorodne postopke (ISO 9090:2019)
Ta dokument določa maksimalne stopnje puščanja zunanjega plina, sprejemljive za opremo, ki se uporablja pri varjenju, rezanju in sorodnih postopkih, ter navaja postopke merjenja. Uporablja se za posamezne komponente, ki se uporabljajo pri dovodu plina do gorilnikov od točke povezovanja cevi (izhod ventila za jeklenke ali točka povezovanja z obratom za dovod plina). Ne uporablja se za obrat za dovod plina.
General Information
- Status
- Published
- Public Enquiry End Date
- 31-Oct-2018
- Publication Date
- 04-Feb-2020
- Technical Committee
- VAR - Welding
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 04-Dec-2019
- Due Date
- 08-Feb-2020
- Completion Date
- 05-Feb-2020
Relations
- Replaces
SIST EN 29090:1998 - Gas tightness of equipment for gas welding and allied processes (ISO 9090:1989) - Effective Date
- 01-Mar-2020
Overview
EN ISO 9090:2019 (CEN adopted) defines acceptable external gas leakage rates and measurement procedures for individual components used in the gas supply to a blowpipe for gas welding, cutting and allied processes. It covers type and routine testing, test pressures, test gases, and measurement methods (including correction procedures). The standard applies to components from the hose outlet or cylinder valve to the blowpipe connection - it does not apply to whole gas supply plants. Individual product standards (e.g., ISO 9012 for some blowpipes) take precedence for specific test details.
Key topics and technical requirements
- Expression of leakage: leakage is given in cubic centimetres per hour (cm3/h) of the gas for which equipment is designed, corrected to standard conditions (23 °C, 1,013 bar).
- Test gases:
- Devices intended for helium and/or hydrogen shall be tested with helium (hydrogen is no longer used as test gas).
- Devices for other gases: dry oil-free air or nitrogen. Routine tests may use air or nitrogen.
- Test pressures:
- Regulators: tested at pressures p1 and p2 as defined in ISO 2503.
- Other equipment (type tests): tested at manufacturer’s maximum working pressure and at 10% of that pressure or 0.5 bar (whichever is lower).
- Routine tests: performed at the pressure that proved most unfavourable during type testing.
- Maximum permissible external leakage rates (total leakage for complete component including inlet connections):
- Regulators: ≤ 10 cm3/h
- Blowpipes: total ≤ 8 cm3/h; leakage through each valve ≤ 4 cm3/h (detailed blowpipe test methods in Annex B)
- Safety devices: ≤ 8 cm3/h
- Quick-action couplings: connected ≤ 10 cm3/h; unconnected female elements ≤ 10 cm3/h
- Devices with combined functions: must meet the most stringent requirement of the constituent functions
- Hose assembly: leakage requirement is specified in the standard (value provided in the full text)
- Measurement & methods: Clause 8 describes measurement principles (immersion method included), test apparatus, procedures and Annex A covers correction of measurements.
Applications and who uses this standard
- Manufacturers of welding, cutting and allied-process equipment (regulators, blowpipes, couplings, safety devices, hose assemblies)
- Test and certification laboratories performing type and routine leakage tests
- Quality, safety and compliance engineers in welding shops and fabrication plants
- Procurement and standards teams verifying supplier conformance and product specifications
- Inspectors and regulatory bodies concerned with welding safety and gas leak risk mitigation
Related standards (referenced)
- ISO 2503 - Pressure regulators for gas welding equipment (test pressures for regulators)
- ISO 15296 - Vocabulary for gas welding equipment
- Product-specific standards (e.g., ISO 9012 for certain hand blowpipes) take precedence for test method details.
Keywords: EN ISO 9090:2019, gas tightness, gas welding equipment, leakage testing, blowpipe leak rate, pressure regulators, quick-action coupling, hose assembly, welding safety.
Frequently Asked Questions
SIST EN ISO 9090:2020 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Gas tightness of equipment for gas welding and allied processes (ISO 9090:2019)". This standard covers: This document specifies the maximum external gas leakage rates which are acceptable for equipment used for welding, cutting and allied processes and provides the procedures of measurement. It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plant. NOTE Specific requirements on the test method and conditions/procedure for measurement of the maximum external leakages can be given in individual standards, e.g. ISO 9012 for air-aspirated hand blowpipes. Concerning the method and the conditions to be applied, the individual standard takes precedence over this document. The maximum external leakages according to this document apply.
This document specifies the maximum external gas leakage rates which are acceptable for equipment used for welding, cutting and allied processes and provides the procedures of measurement. It applies to individual components which are used in the gas supply to a blowpipe from the connecting point of the hose (outlet of the cylinder valve or connecting point to a gas supply plant). It does not apply to gas supply plant. NOTE Specific requirements on the test method and conditions/procedure for measurement of the maximum external leakages can be given in individual standards, e.g. ISO 9012 for air-aspirated hand blowpipes. Concerning the method and the conditions to be applied, the individual standard takes precedence over this document. The maximum external leakages according to this document apply.
SIST EN ISO 9090:2020 is classified under the following ICS (International Classification for Standards) categories: 25.160.30 - Welding equipment. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN ISO 9090:2020 has the following relationships with other standards: It is inter standard links to SIST EN 29090:1998. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN ISO 9090:2020 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
01-marec-2020
Nadomešča:
SIST EN 29090:1998
Tesnost opreme za plamensko varjenje in sorodne postopke (ISO 9090:2019)
Gas tightness of equipment for gas welding and allied processes (ISO 9090:2019)
Gasdichtheit von Geräten für Gasschweißen und verwandte Verfahren (ISO 9090:2019)
Étanchéité aux gaz des appareils pour soudage aux gaz et techniques connexes (ISO
9090:2019)
Ta slovenski standard je istoveten z: EN ISO 9090:2019
ICS:
25.160.30 Varilna oprema Welding equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 9090
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2019
EUROPÄISCHE NORM
ICS 25.160.30 Supersedes EN 29090:1992
English Version
Gas tightness of equipment for gas welding and allied
processes (ISO 9090:2019)
Étanchéité aux gaz des appareils pour soudage aux gaz Gasdichtheit von Geräten für Gasschweißen und
et techniques connexes (ISO 9090:2019) verwandte Verfahren (ISO 9090:2019)
This European Standard was approved by CEN on 26 October 2019.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a 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 European Standard 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
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 9090:2019 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 9090:2019) has been prepared by Technical Committee ISO/TC 44 "Welding
and allied processes" in collaboration with Technical Committee CEN/TC 121 “Welding and allied
processes” the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2020, and conflicting national standards shall be
withdrawn at the latest by May 2020.
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.
This document supersedes EN 29090:1992.
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 9090:2019 has been approved by CEN as EN ISO 9090:2019 without any modification.
INTERNATIONAL ISO
STANDARD 9090
Second edition
2019-10
Gas tightness of equipment for gas
welding and allied processes
Étanchéité aux gaz des appareils pour soudage aux gaz et techniques
connexes
Reference number
ISO 9090:2019(E)
©
ISO 2019
ISO 9090:2019(E)
© ISO 2019
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
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Published in Switzerland
ii © ISO 2019 – All rights reserved
ISO 9090:2019(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Expression of leakage . 1
5 Gas to be used for the tests . 2
5.1 General . 2
5.2 Type tests . 2
5.3 Routine tests . 2
6 Test pressure . 2
6.1 Regulators . 2
6.2 Other equipment . 2
6.2.1 Type tests . 2
6.2.2 Routine test . 2
7 Maximum permissible external gas leakage rates at the above defined pressures .2
7.1 Regulators . 2
7.2 Blowpipes . 2
7.3 Safety devices . 3
7.4 Quick action couplings . 3
7.5 Devices with combined functions . 3
7.6 Hose assembly . 3
7.7 Other equipment . 3
8 Measurement of the leakage rate . 3
8.1 General . 3
8.2 Principle of the method . 3
8.3 Test apparatus for immersion method . 3
8.4 Procedure . 4
Annex A (normative) Correction of measurements . 5
Annex B (normative) Test methods for blowpipes . 6
ISO 9090:2019(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different
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