EN ISO 15012-1:2013

SLOVENSKI STANDARD
01-julij-2013
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SIST EN ISO 15012-1:2005
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Health and safety in welding and allied processes - Equipment for capture and
separation of welding fume - Part 1: Requirements for testing and marking of separation
efficiency (ISO 15012-1:2013)
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Prozessen -
Einrichtungen zum Erfassen und Abscheiden von Schweißrauch - Teil 1: Anforderungen
an den Abscheidegrad sowie Prüfung und Kennzeichnung des Abscheidegrades (ISO
15012-1:2013)
Hygiène et sécurité en soudage et techniques connexes - Équipements de captage et de
filtration des fumées de soudage - Partie 1: Exigences relatives aux essais et marquage
de l'efficacité de séparation (ISO 15012-1:2013)
Ta slovenski standard je istoveten z: EN ISO 15012-1:2013
ICS:
13.040.40 (PLVLMHQHSUHPLþQLKYLURY Stationary source emissions
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
25.160.10 Varilni postopki in varjenje Welding processes
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 15012-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2013
ICS 25.160.30 Supersedes EN ISO 15012-1:2004
English Version
Health and safety in welding and allied processes - Equipment
for capture and separation of welding fume - Part 1:
Requirements for testing and marking of separation efficiency
(ISO 15012-1:2013)
Hygiène et sécurité en soudage et techniques connexes - Arbeits- und Gesundheitsschutz beim Schweißen und bei
Équipements de captage et de filtration des fumées de verwandten Prozessen - Einrichtungen zum Erfassen und
soudage - Partie 1: Exigences pour les essais et marquage Abscheiden von Schweißrauch - Teil 1: Anforderungen an
relatifs à l'efficacité de la séparation (ISO 15012-1:2013) den Abscheidegrad sowie Prüfung und Kennzeichnung des
Abscheidegrades (ISO 15012-1:2013)
This European Standard was approved by CEN on 1 March 2013.

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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15012-1:2013: E
worldwide for CEN national Members.

Contents Page
Foreword .3
Foreword
This document (EN ISO 15012-1:2013) has been prepared by Technical Committee CEN/TC 121 “Welding”
the secretariat of which is held by DIN, in collaboration with Technical Committee ISO/TC 44 "Welding and
allied processes".
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 October 2013, and conflicting national standards shall be withdrawn at
the latest by October 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 15012-1:2004.
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, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 15012-1:2013 has been approved by CEN as EN ISO 15012-1:2013 without any modification.

INTERNATIONAL ISO
STANDARD 15012-1
Second edition
2013-04-01
Health and safety in welding and allied
processes — Equipment for capture
and separation of welding fume —
Part 1:
Requirements for testing and marking
of separation efficiency
Hygiène et sécurité en soudage et techniques connexes —
Équipements de captage et de filtration des fumées de soudage —
Partie 1: Exigences pour les essais et marquage relatifs à l’efficacité
de la séparation
Reference number
ISO 15012-1:2013(E)
©
ISO 2013
ISO 15012-1:2013(E)
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
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Published in Switzerland
ii © ISO 2013 – All rights reserved

ISO 15012-1:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Requirement . 2
5 Principle . 2
6 Equipment . 2
7 Test method . 5
7.1 Selection of test arrangement . 5
7.2 Test conditions . 5
7.3 Procedure . 5
7.4 Calculation of the separation efficiency . 9
8 Accuracy of measurement . 9
9 Marking . 9
Annex A (normative) Label for welding fume separation equipment .10
Annex B (informative) Welding fume source .11
Annex C (informative) Test cabin .13
Bibliography .14
ISO 15012-1:2013(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.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
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.
ISO 15012-1 was prepared by the European Committee for Standardization (CEN), in collaboration with
ISO Technical Committee TC 44, Welding and allied processes, Subcommittee SC 9, , in accordance with
the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This second edition cancels and replaces the first edition (ISO 15012-1:2004), which has been
technically revised.
ISO 15012 consists of the following parts, under the general title Health and safety in welding and allied
processes — Equipment for capture and separation of welding fume:
— Part 1: Requirements for and testing and marking of separation efficiency
— Part 2: Determination of the minimum air volume flow rate of captor hoods and nozzles
The following part is under preparation:
— Part 4: Design requirements
iv © ISO 2013 – All rights reserved

ISO 15012-1:2013(E)
Introduction
It is common practice in the fabrication industry to control exposure to welding fume using local exhaust
ventilation equipment that, following capture and separation of the fume, returns the extracted air to
the workplace or exhausts it to the atmosphere. It is important that such equipment has high separation
efficiency so that as little fume as possible is recirculated or exhausted. This part of ISO 15012 has
therefore been promulgated to specify requirements and a test method for determining the efficiency of
welding fume separation equipment.
INTERNATIONAL STANDARD ISO 15012-1:2013(E)
Health and safety in welding and allied processes —
Equipment for capture and separation of welding fume —
Part 1:
Requirements for testing and marking of separation
efficiency
1 Scope
This part of ISO 15012 specifies a method for testing equipment for the separation of welding fume in
order to determine whether its separation efficiency meets specified requirements.
The method specified does not apply to testing of filter cartridges independent of the equipment in
which they are intended to be used.
This part of ISO 15012 applies to equipment that is manufactured after its publication.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 2602, Statistical interpretation of test results — Estimation of the mean — Confidence interval
ISO 15011-1, Health and safety in welding and allied processes — Laboratory method for sampling fume and
gases — Part 1: Determination of fume emission rate during arc welding and collection of fume for analysis
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
local exhaust ventilation
LEV
use of extraction to remove contaminated air at or near to its source
3.2
welding fume separation equipment
air filtration equipment, the purpose of which is to separate particles generated by welding and allied
processes from workplace air
3.3
filter cleaning system
system designed to clean the filter of welding fume separation equipment in order to restore the air flow
rate through the filter when it is reduced by an accumulation of welding fume particles
ISO 15012-1:2013(E)
3.4
separation efficiency by mass
ratio of the mass of particles retained by welding fume separation equipment to the mass of particles
entering the equipment during a given period
[10] [11]
Note 1 to entry: See also EN 1093-6 and EN 1093-7.
3.5
emission rate
mass of the particles emitted by the welding fume source per time
Note 1 to entry: Emission rate is expressed in milligrams per second.
Note 2 to entry: See Annex B.
3.6
free-standing unit
separation equipment with an integrated fan
3.7
modular system
separation equipment consisting of a filter box, or multiple filter boxes, connected to a single fan
4 Requirement
When tested in accordance with the procedure described in Clause 7, welding fume separation equipment
shall have a lower confidence limit value of separation efficiency ≥99 %.
5 Principle
[10] [11]
The method is based on the methods specified in EN 1093-6 and EN 1093-7. The welding fume
separation equipment under test is operated under defined conditions, according to its intended use.
The emission rate of a welding fume source is measured and used subsequently to calculate the
concentration of fume generated during a test period when separation efficiency is measured.
Before separation efficiency measurements are made, welding fume is generated using the welding
fume source and separated for a period of 30 min.
For equipment with filters that are not intended to be cleaned, the concentration of fume passing
through the separation equipment during a 30 min period is measured and used together with the fume
concentration calculated from the fume emission rate to determine the separation efficiency.
For equipment with cleanable filters, an additional separation efficiency measurement is performed after
a further welding period without measurement and filter cleaning. The average of the two separation
efficiencies is calculated.
Two tests are performed and the average, the 95 % one-sided confidence interval and the lower
confidence limit value of the separation efficiency are calculated according to ISO 2602. If the resulting
lower confidence limit value is less than the required separation efficiency, consideration shall be given
to performing further tests.
6 Equipment
6.1 Welding fume source, capable of maintaining an emission rate of 10 mg/s ± 2 mg/s throughout the
test period. The welding fume source shall be fitted with an extracted fume hood that retains all the fume
emitted and shall be designed in such a way that it can be connected to the inlet duct of the test cabin, as
described in Figure 1, or directly to welding fume separation equipment with a ducted outlet, as described
2 © ISO 2013 – All rights reserved

ISO 15012-1:2013(E)
in Figure 2. It shall be possible to determine the welding fume emission rate in situ without disturbing the
welding set-up in any way. An example of a suitable welding source and parameters required to achieve
the required welding fume emission rate are described in Annex B.
6.2 Test cabin, consisting of an enclosure for the welding fume separation equipment under test,
connected to the welding fume source via an upstream measurement duct. The cabin is connected to a
downstream measurement duct and an air mover (see Figure 1). The air flow rate through the air mover
is adjusted to between 95 % and 100 % of the air flow rate in the upstream duct, thus ensuring a small
positive air pressure in the cabin.
Key
1 welding fume source (see Figure B.1)
2 welding fume separation equipment
3 test cabin with funn
...