EN ISO 3690:2018
(Main)Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO 3690:2018)
Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO 3690:2018)
This document specifies the sampling and analytical procedure for the determination of diffusible hydrogen in martensitic, bainitic, and ferritic steel weld metal arising from the welding of such steels using arc welding processes with filler material.
The techniques specified in this document include collection of diffusible hydrogen via displacement of mercury or collection into a headspace filled with an inert gas such as argon. The amount of hydrogen collected is determined by measuring the displaced volume in the former and by, for example, thermal conductivity in the latter.
The temperature for collection of diffusible hydrogen is controlled to avoid thermal activation of non-diffusible hydrogen.
NOTE Recommendations and restrictions in regard to older methods of measurement using glycerine are given in Annex B for any comparison work to these older methods.
Schweißen und verwandte Prozesse - Bestimmung des Wasserstoffgehaltes im Lichtbogenschweißgut (ISO 3690:2018)
Dieses Dokument legt Anforderungen für das Verfahren der Prüfstückherstellung und der Analyse zur Bestimmung des diffusiblen Wasserstoffs im Schweißgut martensitischer, bainitischer und ferritischer Stähle fest, das durch Lichtbogenschweißen mit Schweißzusatz hergestellt wurde.
Bei den in diesem Dokument beschriebenen Techniken wird diffusibler Wasserstoff zum einen mittels Quecksilberverdrängung, zum anderen in einem mit Inertgas, z. B. Argon, gefüllten Kopfraum auf¬gefangen. Im ersten Fall wird die aufgefangene Wasserstoffmenge durch Messung des verdrängten Volumens bestimmt, im zweiten Fall durch Messung der Wärmeleitfähigkeit.
Die Temperatur wird beim Auffangen des diffusiblen Wasserstoffs kontrolliert, um eine thermische Akti-vierung nicht diffusiblen Wasserstoffs zu vermeiden.
Soudage et techniques connexes - Détermination de la teneur en hydrogène dans le métal fondu pour le soudage à l'arc (ISO 3690:2018)
Le présent document spécifie le mode opératoire d'échantillonnage et d'analyse pour la détermination de l'hydrogène diffusible dans le métal fondu en acier martensitique, bainitique et ferritique résultant du soudage de ces aciers avec des procédés de soudage à l'arc avec métal d'apport.
Les techniques spécifiées dans le présent document comprennent la collecte de l'hydrogène diffusible par déplacement de mercure ou la collecte dans un espace de tête rempli d'un gaz inerte, tel que l'argon. La quantité d'hydrogène collectée est déterminée en mesurant le volume déplacé pour la première technique et, par exemple, la conductivité thermique pour la seconde.
La température de collecte de l'hydrogène diffusible est régulée afin d'éviter l'activation thermique de l'hydrogène non diffusible.
NOTE Les recommandations et les restrictions concernant les anciennes méthodes de mesure utilisant la glycérine sont données à l'Annexe B pour tout travail de comparaison avec ces anciennes méthodes.
Varjenje in sorodne tehnike - Določevanje vodika v čistih varih pri obločnem varjenju (ISO 3690:2018)
Ta dokument določa postopek vzorčenja in analitskega postopka za določanje difuzijskega vodika v martenzitnih, bainitnih in feritnih jeklenih zvarih, ki nastane pri varjenju teh jekel s postopki obločnega varjenja s polnilnim materialom.
Tehnike, navedene v tem dokumentu, vključujejo zbiranje difuzijskega vodika s premestitvijo živega srebra ali zbiranjem v plinski fazi, napolnjeni z inertnim plinom, kot je argon. Količina zbranega vodika se določi z merjenjem premeščene količine iz prejšnje faze in na primer s toplotno prevodnostjo v poznejši fazi.
Z nadziranjem temperature za zbiranje difuzijskega vodika je mogoče preprečiti toplotno aktivacijo nedifuzijskega vodika.
OPOMBA: Priporočila in omejitve v zvezi s starejšimi merilnimi metodami z uporabo glicerina so podane v dodatku B za morebitno primerjavo s temi starejšimi metodami.
General Information
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Standards Content (Sample)
SLOVENSKI STANDARD
01-november-2018
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SIST EN ISO 3690:2012
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Welding and allied processes - Determination of hydrogen content in arc weld metal (ISO
3690:2018)
Schweißen und verwandte Prozesse - Bestimmung des Wasserstoffgehaltes im
Lichtbogenschweißgutl (ISO 3690:2018)
Soudage et techniques connexes - Détermination de la teneur en hydrogène dans le
métal fondu pour le soudage à l'arcl (ISO 3690:2018)
Ta slovenski standard je istoveten z: EN ISO 3690:2018
ICS:
25.160.40 Varjeni spoji in vari Welded joints and welds
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 3690
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2018
EUROPÄISCHE NORM
ICS 25.160.40 Supersedes EN ISO 3690:2012
English Version
Welding and allied processes - Determination of hydrogen
content in arc weld metal (ISO 3690:2018)
Soudage et techniques connexes - Détermination de la Schweißen und verwandte Prozesse - Bestimmung des
teneur en hydrogène dans le métal fondu pour le Wasserstoffgehaltes im Lichtbogenschweißgut (ISO
soudage à l'arc (ISO 3690:2018) 3690:2018)
This European Standard was approved by CEN on 4 September 2018.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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
© 2018 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 3690:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 3690:2018) has been prepared by Technical Committee ISO/TC IIW
"International Institute of Welding" 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 March 2019, and conflicting national standards shall
be withdrawn at the latest by March 2019.
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 ISO 3690:2012.
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, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 3690:2018 has been approved by CEN as EN ISO 3690:2018 without any modification.
INTERNATIONAL ISO
STANDARD 3690
Fourth edition
2018-07
Welding and allied processes —
Determination of hydrogen content in
arc weld metal
Soudage et techniques connexes — Détermination de la teneur en
hydrogène dans le métal fondu pour le soudage à l'arc
Reference number
ISO 3690:2018(E)
©
ISO 2018
ISO 3690:2018(E)
© ISO 2018
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
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Published in Switzerland
ii © ISO 2018 – All rights reserved
ISO 3690:2018(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Test procedures . 2
5.1 Production of weld specimens . 2
5.1.1 Summary . 2
5.1.2 Welding fixture . 2
5.1.3 Test piece assemblies . 3
5.1.4 Welding and test piece storage . 4
5.1.5 Recording of data . . . 5
5.2 Welding procedures for the production of weld specimens . 5
5.2.1 Summary . 5
5.2.2 Manual metal arc welding . 6
5.2.3 Submerged arc welding . 7
5.2.4 Tubular cored electrode with or without gas shield and wire electrode
with gas shield .10
5.3 Measurement of hydrogen in the test weld .12
5.3.1 General.12
5.3.2 Displacement of mercury method .12
5.3.3 Thermal conductivity detector method .14
5.3.4 Calibration .16
5.3.5 Linearity .17
5.3.6 Calculation and expression of results .17
5.3.7 Reporting of results .18
5.4 Measurement of total hydrogen content in the weld metal — Rapid methods .18
5.5 Rounding procedure.18
Annex A (informative) Recommendations and restrictions in regard to older methods of
measurement using mercury .20
Annex B (informative) Recommendations and restrictions in regard to older methods of
measurement using glycerine .21
Annex C (informative) Accuracy and reproducibility .22
Bibliography .23
ISO 3690:2018(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
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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 types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www. iso. org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www. iso.o rg/patents).
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This document was prepared by IIW, International Institute of Welding, Commission II.
Any feedback, question or request for official interpretation related to any aspect of this document
should be directed to IIW via your national standards body. A complete listing of these bodies can be
found at www. iso. org/members. html.
This fourth edition cancels and replaces the third edition (ISO 3690:2012), which has been technically
revised. The main changes compared to the previous edition are as follows:
— an additional specimen size D has been added;
— changes have been made in required diffusion times for high temperature tests, see 5.3.3.4, 5.3.4
and Table 5.
iv © ISO 2018 – All rights reserved
INTERNATIONAL STANDARD ISO
...
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