EN ISO 21904-4:2020
(Main)Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 4: Determination of the minimum air volume flow rate of capture devices (ISO 21904-4:2020)
Health and safety in welding and allied processes - Equipment for capture and separation of welding fume - Part 4: Determination of the minimum air volume flow rate of capture devices (ISO 21904-4:2020)
This document specifies two methods for establishing the minimum air volume flow rate. One method is dedicated for use with captor hoods, nozzles and slot nozzles with a ratio of slot length to hose diameter of 8:1 or less. The other method is dedicated for use with on-gun extraction devices.
These methods are not applicable to down draught tables.
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren - Einrichtungen zum Erfassen und Abscheiden von Schweißrauch - Teil 4: Bestimmen des Mindestluftvolumenstromes von Absaugeinrichtungen (ISO 21904-4:2020)
Dieses Dokument legt zwei Verfahren zur Festlegung des Mindestluftvolumenstroms fest. Ein Verfahren ist für die Verwendung mit Abzugshauben, Düsen und Schlitzdüsen mit einem Verhältnis der Schlitzlänge zum Schlauchdurchmesser von 8 : 1 oder weniger geeignet. Das andere Verfahren ist für die Verwendung mit brennerintegrierten Absaugeinrichtungen geeignet.
Diese Verfahren sind nicht für abgesaugte Schweißtische geeignet.
Hygiène et sécurité en soudage et techniques connexes - Équipements de captage et de filtration des fumées - Partie 4: Détermination du débit volumique minimal d'air des dispositifs de captage (ISO 21904-4:2020)
Le présent document spécifie deux méthodes qui permettent de déterminer le débit volumique d'air minimal. Une méthode est applicable pour l'utilisation avec des dispositifs de captage, des buses et des fentes aspirantes ayant un rapport longueur de fente sur diamètre du tuyau inférieur ou égal à 8:1. L'autre méthode est applicable pour l'utilisation avec des torches aspirantes de soudage.
Ces méthodes ne s'applique aux tables aspirantes.
Zdravje in varnost pri varjenju in sorodnih postopkih - Oprema za zajem in ločevanje varilnega dima - 4. del: Določanje najmanjšega volumenskega pretoka zraka skozi odsesovalne naprave (ISO 21904-4:2020)
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 21904-4:2020
01-maj-2020
Nadomešča:
SIST EN ISO 15012-2:2008
Zdravje in varnost pri varjenju in sorodnih postopkih - Oprema za zajem in
ločevanje varilnega dima - 4. del: Določanje najmanjšega volumenskega pretoka
zraka skozi odsesovalne naprave (ISO 21904-4:2020)
Health and safety in welding and allied processes - Equipment for capture and
separation of welding fume - Part 4: Determination of the minimum air volume flow rate
of capture devices (ISO 21904-4:2020)
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren -
Einrichtungen zum Erfassen und Abscheiden von Schweißrauch - Teil 4: Bestimmen des
Mindestluftvolumenstromes von Absaugeinrichtungen (ISO 21904-4:2020)
Hygiène et sécurité en soudage et techniques connexes - Équipements de captage et de
filtration des fumées - Partie 4: Détermination du débit volumique minimal d'air des
dispositifs de captage (ISO 21904-4:2020)
Ta slovenski standard je istoveten z: EN ISO 21904-4:2020
ICS:
13.040.40 Emisije nepremičnih virov Stationary source emissions
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
25.160.30 Varilna oprema Welding equipment
SIST EN ISO 21904-4:2020 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 21904-4:2020
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SIST EN ISO 21904-4:2020
EN ISO 21904-4
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2020
EUROPÄISCHE NORM
ICS 13.100; 25.160.30 Supersedes EN ISO 15012-2:2008
English Version
Health and safety in welding and allied processes -
Equipment for capture and separation of welding fume -
Part 4: Determination of the minimum air volume flow
rate of capture devices (ISO 21904-4:2020)
Hygiène et sécurité en soudage et techniques connexes Arbeits- und Gesundheitsschutz beim Schweißen und
- Équipements de captage et de filtration des fumées - bei verwandten Verfahren - Einrichtungen zum
Partie 4: Détermination du débit volumique minimal Erfassen und Abscheiden von Schweißrauch - Teil 4:
d'air des dispositifs de captage (ISO 21904-4:2020) Bestimmen des Mindestluftvolumenstromes von
Absaugeinrichtungen (ISO 21904-4:2020)
This European Standard was approved by CEN on 20 January 2020.
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
© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21904-4:2020 E
worldwide for CEN national Members.
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SIST EN ISO 21904-4:2020
EN ISO 21904-4:2020 (E)
Contents Page
European foreword . 3
2
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SIST EN ISO 21904-4:2020
EN ISO 21904-4:2020 (E)
European foreword
This document (EN ISO 21904-4:2020) 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 2020, and conflicting national standards
shall be withdrawn at the latest by September 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 ISO 15012-2:2008.
Accord
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