SIST EN ISO 15011-1:2003

SLOVENSKI STANDARD
01-maj-2003
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Health and safety in welding and allied processes - Laboratory method for sampling fume
and gases generated by arc welding - Part 1: Determination of emission rate and
sampling for analysis of particulate fume (ISO 15011-1:2002)
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren -
Laborverfahren zum Sammeln von Rauch und Gasen, die beim Lichtbogenschweißen
erzeugt werden - Teil 1: Bestimmung der Emissionsrate und Probenahme zur Analyse
von partikelförmigem Rauch (ISO 15011-1:2002)
Hygiene et sécurité en soudage et techniques connexes - Méthode de laboratoire
d'échantillonnage des fumées et des gaz émis par le soudage a l'arc - Partie 1:
Détermination du taux d'émission et échantillonnage pour l'analyse des poussieres (ISO
15011-1:2002)
Ta slovenski standard je istoveten z: EN ISO 15011-1:2002
ICS:
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 15011-1
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2002
ICS 13.100; 25.160.01
English version
Health and safety in welding and allied processes - Laboratory
method for sampling fume and gases generated by arc welding -
Part 1: Determination of emission rate and sampling for analysis
of particulate fume (ISO 15011-1:2002)
Hygiène et sécurité en soudage et techniques connexes - Arbeits- und Gesundheitsschutz beim Schweißen und bei
Méthode de laboratoire d'échantillonnage des fumées et verwandten Verfahren - Laborverfahren zum Sammeln von
des gaz émis par le soudage à l'arc - Partie 1: Rauch und Gasen, die beim Lichtbogenschweißen erzeugt
Détermination du taux d'émission et échantillonnage pour werden - Teil 1: Bestimmung der Emissionsrate und
l'analyse des poussières (ISO 15011-1:2002) Probenahme zur Analyse von partikelförmigem Rauch (ISO
15011-1:2002)
This European Standard was approved by CEN on 20 April 2001.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36  B-1050 Brussels
© 2002 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15011-1:2002 E
worldwide for CEN national Members.

Contents
page
Foreword.3
1 Scope .4
2 Terms and definitions .4
3 Test equipment .4
3.1 Fume box.4
3.2 Filters .5
3.3 Pump .5
3.4 Measuring equipment .5
4 Test pieces .5
5 Consumable .5
6 Procedure.6
6.1 Principle.6
6.2 Test sequence.6
6.3 Precautions .6
6.4 Welding parameters .6
6.5 Duration of the test.6
7 Interpretation of results .7
7.1 Number of tests .7
7.2 Calculation of fume emission rate.7
7.3 Analysis.7
7.4 Recording of test data and presentation of results .7
Annex A (informative) Possible designs of fume boxes designed for manual metal arc welding, MIG-
welding and MAG-welding .8
A.1 Design 1.8
A.2 Design 2.10
Annex B (informative) Test report.11
Annex C (informative) Recommended analytical analysis.12
Annex D (informative) Extraction method of total hexavalent chromium found in welding particulate matter13
Foreword
This document (EN ISO 15011-1:2002) has been prepared by Technical Committee CEN/TC 121 "Welding", the
secretariat of which is held by DS, 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 2002, and conflicting national standards shall be withdrawn at the latest
by October 2002.
This standard consists of the following parts:

Part 1: Determination of emission rate and sampling for analysis of particulate fume;

Part 2: Determination of emission rates of gases and vapours, except ozone;

Part 3: Determination of ozone concentration using fixed point measurements.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard : Austria, Belgium, Czech Republic, Denmark, Finland,
France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Spain,
Sweden, Switzerland and the United Kingdom.
Introduction
Welding and allied processes produce particulate fume and gaseous by-products which may be harmful to human
health. A knowledge of the quantity of particulate fume and gases generated and the composition of the particulate
fume may be useful for occupational hygienists in accessing workplace atmospheres. Emission rates cannot be
directly related to fume concentrations existing in a welder's breathing zone, but processes with low emission rates
are supposed to produce less fume concentration compared with high emission rates for the same welding
condition.
The laboratory procedure described in Part 1 of this standard is used to determine emission rate of particulate fume
generated by the arc welding and provides a method of sampling the fume for chemical analysis. The emission rate
and composition of particulate fume depend on the welding process, welding parameters, workpiece surface,
coatings etc.
With the aid of a fume box in an un-polluted atmosphere, the total particulate fume generated during welding is
collected and sampled on a filter in order to determine the emission rate and/or chemical composition.
1 Scope
This European standard describes a method for the determination of the particulate fume emission rate from arc
welding processes using a fume box technique. It defines a method of sampling particulate fume for chemical
analysis and suggests possible analytical techniques in order to characterize fumes emitted by consumable during
welding.
2 Terms and definitions
For the purposes of this European Standard, the following terms and definitions apply.
2.1
fume box
a closed or semi-closed ventilated chamber used for sampling and determination (emission rate and composition)
of fume and gases in welding and allied processes
2.2
test piece
piece of metal on which the welding process is performed
2.3
arc time
arc time starts from arc initiation and stops immediately as the arc is extinguished
3 Test equipment
3.1 Fume box
The fume box should consist of a top section containing a filter, a welding chamber and a chamber base. The
welding chamber shall be large enough to allow complete capture of the emitted fume. The fume box should be
designed to reduce deposition of welding fume onto the internal box surface. Examples of possible arrangements
are described in annex A, as an example. Other appropriate fume box designs may be used.
3.2 Filters
The filters shall be capable of withstanding the pressure drop and shall allow collection of fume loadings between
0,4 mg/cm² and 1,2 mg/cm². The filters shall have a minimum efficiency of 99,5 %.
NOTE  Practically, to avoid clogging of the filter, such values require the use of filters with a diameter of approximately 250 mm.
For determination of emission rate, weight stability with respect to humidity is essential and glass fibre filters or
quartz filters are recommended. If a fume sample is collected for chemical analysis the type of filter should be such
that it is free from relevant contaminants and compatible with subsequent analysis procedures. A paper filter
(cellulose) is recommended.
For the determination of hexavalent chromium, the fumes shall be removed immediately from the filter.
The filters are held by a stainless steel wire mesh; recommended dimensions for the mesh size are 0,5 mm to
2,0 mm.
The filter holding device shall allow the filter to be removed and there shall not be any leakage between the filter
and its support.
3.3 Pump
The precise characteristics of the pump are not considered to be critical providing the flow is adequate to contain
the fume within the box without interfering with the welding process and to clear the fume box of fume after
completion of welding, within the time specified, see 6.5.
The pump shall have a suction characteristic able to give:

at the beginning of the test a flow rate of 25 l/s to 30 l/s at 10000 Pa (0,1 bar) which corresponds to the
resistance of the filter at 0 mg fume;

at the end of the test, a flow rate of at least 5 l/s at 16000 Pa to 20000 Pa.
3.4 Measuring equipment
Voltage measurements across the arc and welding current shall be measured using electrical recorders with an
accuracy class of 0,5.
The arc time shall be measured with a timer having increments of 0,1 s or smaller.
The mass of collected particulate matter shall be measured using a balance with a sensitivity of at least 1 mg.
4 Test pieces
All details concerning the test piece shall be noted in the test report (see annex B).
The choice of the test piece shall be appropriate to the welding process, the consumable and the welding
conditions being used.
5 Consumable
All details concerning the consumable shall be noted in the test report (see annex B).
The choice of the consumable shall be appropriate to the welding process, the test piece and the welding
conditions being used.
6 Procedure
6.1 Principle
A weld is made inside the fume box while the pump is running. The fume produced is collected on the filter.
6.2 Test sequence
The test sequence shall be as follows:

a test piece shall be placed directly on the metallic table inside the fume box;

a weighed filter shall be placed in the sampling device;

the pump shall be switched o
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