EN ISO 21904-3:2018
(Main)Health and safety in welding and allied processes - Requirements, testing and marking of equipment for air filtration - Part 3: Determination of the capture efficiency of on-torch welding fume extraction devices (ISO 21904-3:2018)
Health and safety in welding and allied processes - Requirements, testing and marking of equipment for air filtration - Part 3: Determination of the capture efficiency of on-torch welding fume extraction devices (ISO 21904-3:2018)
ISO 21904-3:2018 defines a laboratory method for measuring the welding fume capture efficiency of on-torch extraction systems. The procedure only prescribes a methodology, leaving selection of the test parameters to the user, so that the effect of different variables can be evaluated.
ISO 21904-3:2018 is applicable to integrated on-torch systems and to systems where a discrete extraction system is attached to the welding torch close to the arc area. The methodology is suitable for use with all continuous wire welding processes, all material types and all welding parameters.
The method can be used to evaluate the effects of variables such as extraction flow rate, extract nozzle position, shielding gas flow rate, welding geometry, welding torch angle, fume emission rate, etc., on capture efficiency.
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren - Anforderungen, Prüfung und Kennzeichnung von Luftreinigungssystemen - Teil 3: Bestimmung des Erfassungsgrades von brennerintegrierten Absaugeinrichtungen für Schweißrauch (ISO 21904-3:2018)
Dieses Dokument legt ein Laborverfahren zur Bestimmung des Erfassungsgrades von brennerinte¬grierten Absaugeinrichtungen für Schweißrauch fest. Das Verfahren schreibt ausschließlich eine Methodik vor und überlässt die Auswahl der Prüfparameter dem Anwender, sodass die Auswirkungen der verschiedenen Variablen evaluiert werden können.
Es ist anwendbar auf brennerintegrierte Systeme und Systeme, bei denen eine eigenständige Absauganlage am Schweißbrenner nahe des Lichtbogen Bereiches angebracht ist. Das Verfahren eignet sich für den Einsatz bei allen kontinuierlichen Drahtschweißverfahren, allen Materialtypen und allen Schweißparametern.
Das Verfahren kann angewendet werden, um die Auswirkungen von Variablen wie Absaugdurchflussrate, Position der Absaugdüse, Schutzgasdurchfluss, Schweißgeometrie, Schweißbrennerwinkel, Rauchemissions¬rate usw. auf den Erfassungsgrad zu bestimmen.
Hygiène et sécurité en soudage et techniques connexes - Exigences, essais et marquage des équipements de filtration d'air - Partie 3: Détermination de l'efficacité de captage des torches aspirantes (ISO 21904-3:2018)
ISO 21904-3:2018 définit une méthode de mesure en laboratoire de l'efficacité de captage des fumées de soudage des torches aspirantes. Le mode opératoire spécifie seulement une méthodologie, en laissant à l'utilisateur le choix des paramètres d'essai, afin de pouvoir évaluer l'effet de différentes variables.
ISO 21904-3:2018 est applicable aux systèmes à torche intégrée et aux systèmes dans lesquels un système d'extraction distinct est attaché à la torche de soudage à proximité de la zone d'arc. La méthodologie convient pour une utilisation avec tous les procédés de soudage à dévidement de fil continu, pour tous les types de matériaux et tous les paramètres de soudage.
La méthode peut servir à évaluer les effets sur l'efficacité de captage de variables, telles que le débit d'extraction, la position de la buse d'extraction, le débit du gaz de protection, la géométrie de soudage, l'angle de la torche de soudage, le taux d'émission de fumées, etc.
Zdravje in varnost pri varjenju in sorodnih tehnikah - Zahteve, preskušanje in označevanje opreme za filtriranje zraka - 3. del: Ugotavljanje učinkovitosti vgrajenih naprav na gorilniku za odsesavanje plinov pri varjenju (ISO 21904-3:2018)
Ta standard opredeljuje laboratorijsko metodo za merjenje učinkovitosti zajema varilnega dima vgrajenih sistemov na gorilniku za odsesavanje plinov pri varjenju. Uporablja se za vgrajene sisteme na gorilniku in sisteme, pri katerih je ločen sistem za odsesavanje pritrjen na gorilnik za varjenje poleg obloka. Metodologija je primerna za uporabo z vsemi neprekinjenimi postopki varjenja z žico, vsemi vrstami materialov in vsemi parametri varjenja.
Metodo je mogoče uporabljati za ocenjevanje učinkov spremenljivk, kot so hitrost pretoka odsesavanja, položaj šobe za odsesavanje, hitrost pretoka zaščitnega plina, geometrija zvarov, kot gorilnika za varjenje in stopnja emisij dima, na učinkovitost zajema.
General Information
Standards Content (Sample)
SLOVENSKI STANDARD
01-oktober-2018
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YJUDMHQLKQDSUDYQDJRULOQLNX]DRGVHVDYDQMHSOLQRYSULYDUMHQMX ,62
Health and safety in welding and allied processes - Requirements, testing and marking of
equipment for air filtration - Part 3: Determination of the capture efficiency of on-torch
welding fume extraction devices (ISO 21904-3:2018)
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren -
Anforderungen, Prüfung und Kennzeichnung von Luftreinigungssystemen - Teil 3:
Bestimmung des Erfassungsgrades von brennerintegrierten Absaugeinrichtungen für
Schweißrauch (ISO 21904-3:2018)
Hygiène et sécurité en soudage et techniques connexes - Exigences, essais et
marquage des équipements de filtration d'air - Partie 3: Détermination de l'efficacité de
captage des torches aspirantes (ISO 21904-3:2018)
Ta slovenski standard je istoveten z: EN ISO 21904-3:2018
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
25.160.01 Varjenje, trdo in mehko Welding, brazing and
spajkanje na splošno soldering in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 21904-3
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2018
EUROPÄISCHE NORM
ICS 13.100; 25.160.01
English Version
Health and safety in welding and allied processes -
Requirements, testing and marking of equipment for air
filtration - Part 3: Determination of the capture efficiency
of on-torch welding fume extraction devices (ISO 21904-
3:2018)
Hygiène et sécurité en soudage et techniques connexes Arbeits- und Gesundheitsschutz beim Schweißen und
- Exigences, essais et marquage des équipements de bei verwandten Verfahren - Anforderungen, Prüfung
filtration d'air - Partie 3: Détermination de l'efficacité und Kennzeichnung von Luftreinigungssystemen - Teil
de captage des torches aspirantes (ISO 21904-3:2018) 3: Bestimmung des Erfassungsgrades von
brennerintegrierten Absaugeinrichtungen für
Schweißrauch (ISO 21904-3:2018)
This European Standard was approved by CEN on 1 March 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 21904-3:2018 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 21904-3:2018) 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 September 2018, and conflicting national standards
shall be withdrawn at the latest by September 2018.
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, 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 21904-3:2018 has been approved by CEN as EN ISO 21904-3:2018 without any
modification.
INTERNATIONAL ISO
STANDARD 21904-3
First edition
2018-02
Health and safety in welding and
allied processes — Requirements,
testing and marking of equipment for
air filtration —
Part 3:
Determination of the capture
efficiency of on-torch welding fume
extraction devices
Hygiène et sécurité en soudage et techniques connexes — Exigences,
essais et marquage des équipements de filtration d'air —
Partie 3: Détermination de l'efficacité de captage des torches
aspirantes
Reference number
ISO 21904-3:2018(E)
©
ISO 2018
ISO 21904-3:2018(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
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 2018 – All rights reserved
ISO 21904-3:2018(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Test equipment and materials . 2
5.1 General requirement . 2
5.2 Test equipment . 2
6 Test procedure . 4
6.1 Preliminary tests . 4
6.1.1 Setting the shielding gas flow rate . 4
6.1.2 Measuring the flow rates and determination of leakage . 4
6.1.3 Establishing the arcing time for total fume emission rate test . 5
6.1.4 Setting up the test equipment . 5
6.2 Capture efficiency tests . 6
6.2.1 General. 6
6.2.2 Test procedure . 6
6.2.3 Calculation of the results . 7
7 Test parameters for generating capture efficiency data . 8
8 Test report . 9
Annex A (informative) Equipment notes .10
Annex B (normative) Trial tests .12
Annex C (informative) Examples of test chambers .14
Annex D (normative) Test procedures.16
Annex E (informative) Data processing for test method 3 .17
Annex F (normative) Test parameters form to be filled .19
Annex G (informative) Information about the necessity to measure leakage .20
Bibliography .21
ISO 21904-3:2018(E)
Foreword
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