SIST EN ISO 15011-4:2006
(Main)Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 4: Fume data sheets (ISO 15011-4:2006)
Health and safety in welding and allied processes - Laboratory method for sampling fume and gases - Part 4: Fume data sheets (ISO 15011-4:2006)
This European Standard specifies requirements for determination of the emission rate and chemical composition of welding fume in order to prepare fume data sheets. This information may be used to define a classification of the fume as a basis for risk assessment.
It applies to all filler materials used for joining or surfacing by arc welding using a manual, partly mechanised or fully automatic process, depositing an unalloyed steel, an alloyed steel, a stainless steel, a heat-resisting stainless steel or a non-ferrous alloy.
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren - Laborverfahren zum Sammeln von Rauch und Gasen - Teil 4: Rauchdatenblätter (ISO 15011-4:2006)
Dieser Teil der ISO 15011 schließt den Arbeits- und Gesundheitsschutz beim Schweißen und verwandten Verfahren mit ein. Er legt Anforderungen zur Bestimmung der Emissionsrate und der chemischen Zusammensetzung von Schweißrauch fest, um Rauchdatenblätter zu erstellen.
Er gilt für Schweißzusatzwerkstoffe zum Verbinden oder Plattieren durch Lichtbogenschweißen unter Verwendung eines manuellen, teilweise maschinellen oder vollständig automatischen Prozesses, bei dem entweder unlegierter Stahl, legierter Stahl oder Nichteisenlegierungen abgeschmolzen werden. Lichtbogenhandschweißen, Metall-Schutzgasschweißen mit Massiv-, Metallkern- und Fülldrahtelektrode und Metall-Lichtbogenschweißen mit Fülldrahtelektrode ohne Schutzgas sind im Anwendungsbereich dieses Teiles der ISO 15011 enthalten.
Hygiene et sécurité en soudage et techniques connexes - Méthode de laboratoire d'échantillonnage des fumées et des gaz - Partie 4: Fiches d'information sur les fumées (ISO 15011-4:2006)
L'ISO 15011-4:2006 couvre l'hygiène et la sécurité en soudage et techniques connexes. Elle spécifie les exigences relatives à la détermination des taux d'émission et à la composition chimique des fumées de soudage dans le but de préparer des fiches d'information sur les fumées.
L'ISO 15011-4:2006 s'applique à tous les métaux d'apport utilisés pour l'assemblage ou le rechargement par soudage à l'arc utilisant un procédé manuel, partiellement mécanisé ou entièrement automatisé déposant un acier non allié, un acier allié et des alliages non ferreux. Le soudage manuel à l'arc avec électrodes enrobées, le soudage à l'arc avec fil plein sous protection gazeuse, le soudage à l'arc avec fil fourré sous protection gazeuse et le soudage à l'arc avec fil fourré autoprotecteur sont inclus dans le domaine d'application de l'ISO 15011-4:2006.
Zdravje in varnost pri varjenju in podobnih postopkih - Laboratorijska metoda za vzorčenje dima in plinov, nastalih pri obločnem varjenju - 4. del: Prikaz podatkov o dimih (ISO 15011-4:2006)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 15011-4:2006
01-julij-2006
=GUDYMHLQYDUQRVWSULYDUMHQMXLQSRGREQLKSRVWRSNLK/DERUDWRULMVNDPHWRGD]D
Y]RUþHQMHGLPDLQSOLQRYQDVWDOLKSULREORþQHPYDUMHQMXGHO 3ULND]SRGDWNRYR
GLPLK ,62
Health and safety in welding and allied processes - Laboratory method for sampling fume
and gases - Part 4: Fume data sheets (ISO 15011-4:2006)
Arbeits- und Gesundheitsschutz beim Schweißen und bei verwandten Verfahren -
Laborverfahren zum Sammeln von Rauch und Gasen - Teil 4: Rauchdatenblätter (ISO
15011-4:2006)
Hygiene et sécurité en soudage et techniques connexes - Méthode de laboratoire
d'échantillonnage des fumées et des gaz - Partie 4: Fiches d'information sur les fumées
(ISO 15011-4:2006)
Ta slovenski standard je istoveten z: EN ISO 15011-4:2006
ICS:
13.100 Varnost pri delu. Industrijska Occupational safety.
higiena Industrial hygiene
25.160.10 Varilni postopki in varjenje Welding processes
SIST EN ISO 15011-4:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
SIST EN ISO 15011-4:2006
---------------------- Page: 2 ----------------------
SIST EN ISO 15011-4:2006
EUROPEAN STANDARD
EN ISO 15011-4
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2006
ICS 25.160.10; 13.100
English Version
Health and safety in welding and allied processes - Laboratory
method for sampling fume and gases - Part 4: Fume data sheets
(ISO 15011-4:2006)
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 - Partie 4: Fiches d'information sur les fumées Rauch und Gasen, die beim Lichtbogenschweißen erzeugt
(ISO 15011-4:2006) werden - Teil 4: Rauchdatenblätter (ISO 15011-4:2006)
This European Standard was approved by CEN on 9 March 2006.
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 Central Secretariat 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 Central Secretariat has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,
Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,
Slovakia, Slovenia, 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
© 2006 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 15011-4:2006: E
worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN ISO 15011-4:2006
EN ISO 15011-4:2006 (E)
Foreword
This document (EN ISO 15011-4:2006) 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 September 2006, and conflicting national
standards shall be withdrawn at the latest by September 2006.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of
the following countries are bound to implement this European Standard: Austria, Belgium,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,
Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
2
---------------------- Page: 4 ----------------------
SIST EN ISO 15011-4:2006
INTERNATIONAL ISO
STANDARD 15011-4
First edition
2006-03-15
Health and safety in welding and allied
processes — Laboratory method for
sampling fume and gases —
Part 4:
Fume data sheets
Hygiène et sécurité en soudage et techniques connexes — Méthode de
laboratoire d'échantillonnage des fumées et des gaz —
Partie 4: Fiches d'information sur les fumées
Reference number
ISO 15011-4:2006(E)
©
ISO 2006
---------------------- Page: 5 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
PDF disclaimer
This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but
shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In
downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The ISO Central Secretariat
accepts no liability in this area.
Adobe is a trademark of Adobe Systems Incorporated.
Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation
parameters were optimized for printing. Every care has been taken to ensure that the file is suitable for use by ISO member bodies. In
the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below.
© ISO 2006
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means,
electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or
ISO's member body in the country of the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2006 – All rights reserved
---------------------- Page: 6 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
Contents Page
Foreword. iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions. 1
4 Principle. 2
5 Procedure . 2
6 Test conditions . 3
6.1 Generic test parameters. 3
6.2 Testing of manual metal arc welding electrodes. 5
6.3 Testing of solid, metal-cored and flux-cored wires used in gas-shielded metal arc welding . 5
6.4 Testing of flux-cored wires used in self-shielded metal arc welding. 7
7 Reporting of results. 8
7.1 Fume data sheet. 8
7.2 Transitional arrangements. 9
7.3 Retesting. 9
7.4 Data sharing . 10
7.5 Validation of fume data sheets. 10
Annex A (normative) Fume data sheet. 11
Annex B (informative) Optional additional section of a fume data sheet. 13
Annex C (informative) Examples of performance data. 14
Annex D (informative) Uses of welding fume data. 16
Annex E (informative) Principal and key components of welding fume. 19
Annex F (informative) Example of a welding consumable classification system . 21
Annex G (informative) Example of a fume data sheet for a stainless steel manual metal arc
welding electrode (including the optional additional section). 22
Bibliography . 24
© ISO 2006 – All rights reserved iii
---------------------- Page: 7 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(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 15011-4 was prepared by the European Committee for Standardization (CEN) Technical Committee
CEN/TC 121, Welding in collaboration with Technical Committee ISO/TC 44, Welding and allied processes,
Subcommittee SC 9, Health and safety, in accordance with the Agreement on technical cooperation between
ISO and CEN (Vienna Agreement).
ISO 15011 consists of the following parts, under the general title Health and safety in welding and allied
processes — Laboratory method for sampling fume and gases generated by arc:
⎯ Part 1: Determination of emission rate and sampling for analysis of particulate fume
⎯ Part 2: Determination of emission rates of gases, except ozone
⎯ Part 3: Determination of ozone concentration using fixed point measurements
⎯ Part 4: Fume data sheets
⎯ Part 5: Identification of thermal-degradation products generated when welding or cutting through products
composed wholly or partly of organic materials
iv © ISO 2006 – All rights reserved
---------------------- Page: 8 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
Introduction
Welding and allied processes produce airborne particles and gaseous by-products that can be harmful to
human health. Knowledge of the quantity and composition of the airborne particles and gases emitted can be
useful for occupational hygienists in assessing workplace exposure and in determining appropriate control
measures.
Welding processes, consumables and parameters give rise to various fume emission rates, which in turn lead
to different welder exposures. Emission rate cannot be used directly to assess exposure. However, processes,
consumables and welding parameters that give lower emission rates generally result in lower welder
exposures than processes with higher emission rates used in the same working situation.
The purpose of this part of ISO 15011 is to specify conditions under which fume is generated for the purpose
of obtaining fume emission and chemical composition data for use in health and safety applications. Clear
instructions and supporting informative guidance is provided in order to ensure that the welding conditions
used are selected thoughtfully according to a standardized procedure. At the same time, the need to fully
report the welding conditions used in the test is emphasised, and an example is provided of how such
information is to be conveyed on a fume data sheet. This part of ISO 15011 also gives information about how
the data obtained can be used.
It has been assumed in the drafting of this part of ISO 15011 that the execution of its provisions and the
interpretation of the results obtained are entrusted to appropriately qualified and experienced people.
Requests for official interpretations of any aspect of this part of ISO 15011 should be directed to the
Secretariat of ISO/TC 44/SC 9 via your national standards body, a complete of listing of which can be found at
http://www.iso.org.
© ISO 2006 – All rights reserved v
---------------------- Page: 9 ----------------------
SIST EN ISO 15011-4:2006
---------------------- Page: 10 ----------------------
SIST EN ISO 15011-4:2006
INTERNATIONAL STANDARD ISO 15011-4:2006(E)
Health and safety in welding and allied processes —
Laboratory method for sampling fume and gases —
Part 4:
Fume data sheets
1 Scope
This part of ISO 15011 covers health and safety in welding and allied processes. It specifies requirements for
determination of the emission rate and chemical composition of welding fume in order to prepare fume data
sheets.
It applies to all filler materials used for joining or surfacing by arc welding using a manual, partly mechanised
or fully automatic process, depositing unalloyed steel, alloyed steel and non-ferrous alloys. Manual metal arc
welding, gas-shielded metal arc welding with solid wires, metal-cored and flux-cored wires and arc welding
with self-shielded flux-cored wires are included within the scope of this part of ISO 15011.
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.
EN 1540, Workplace atmospheres — Terminology
EN/TR 14599, Terms and definitions for welding purposes in relation with EN 1792
EN 14610, Welding and allied processes — Definitions of metal welding processes
ISO 15011-1, 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
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 1540, EN/TR 14599, EN 14610 and
the following apply.
3.1
additive limit value
limit value that, in the absence of specific knowledge of the combined health effects of a mixture of chemical
agents, is calculated on the basis that the health effects of the various components are at least additive
NOTE For complex substances that are mixtures of chemical agents, such as welding fume, individual substances
can have specific, independent health effects or they can have synergistic, additive or antagonistic health effects.
© ISO 2006 – All rights reserved 1
---------------------- Page: 11 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
3.2
additive welding fume limit value
additive limit value for welding fume
3.3
key component of a welding fume
component of a welding fume that has the greatest occupational hygienic significance and therefore requires
the most stringent control measures to ensure that a welder is not exposed to an excessive level of the
substance concerned, i.e. it is the component whose limit value is exceeded at the lowest welding fume
concentration
3.4
key-component welding fume limit value
limit value which, if not exceeded, will ensure that no component of the welding fume has a concentration
above its limit value
3.5
principal components of a welding fume
components of a welding fume that are of occupational hygienic significance
3.6
single-component welding fume limit value
limit value calculated for a single component which, if not exceeded, will ensure that the component does not
have a concentration above its limit value
4 Principle
4.1 Tests are carried out to determine the emission rate and chemical composition of welding fume
produced when a welding consumable is used under a defined set of operating conditions. The welding fume
is generated in accordance with the procedure described in ISO 15011-1 and under the conditions specified in
this part of ISO 15011.
4.2 Emission rate and chemical composition data are reported in a recommended format, and various ways
in which the data may be used are described.
5 Procedure
5.1 Determine the fume emission rate and/or collect fume samples for analysis, as required, in accordance
with the procedure described in ISO 15011-1. Carry out the tests under the conditions prescribed in 6.2, 6.3
and 6.4, as appropriate.
NOTE In practice, emission rates can vary significantly from those determined under the test conditions specified in
6.2, 6.3 and 6.4. This is because the welding conditions used in the workplace can be significantly different from those
specified in this part of ISO 15011. The conditions specified are typical of common practice and have been standardized to
generate comparative data for a welding fume consumable classification.
5.2 Analyse the welding fume samples to generate chemical composition data for all the principal
components of the welding fume (see Table E.1). Identify these, if necessary, by carrying out an initial
qualitative analysis of the fume.
5.3 Estimate and report the uncertainty of measurements in accordance with the ISO GUM. See Annex C
for examples of performance data obtained in an interlaboratory comparison.
2 © ISO 2006 – All rights reserved
---------------------- Page: 12 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
6 Test conditions
6.1 Generic test parameters
Table 1 lists the test parameters that apply to all the welding processes included in the scope of this part of
ISO 15011 and it also gives cross-references for parameters that are process-specific.
Where it is specified in Tables 1 to 6 that a test condition is established by an experienced welder, if possible
use the median of test conditions established by a number of experienced welders.
All instruments used for measuring test parameters shall have a calibration traceable to national standards.
© ISO 2006 – All rights reserved 3
---------------------- Page: 13 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
Table 1 — Generic test parameter
Purpose of
Parameter Test parameters
test
For processes other than gas-shielded metal arc welding with solid wires, determine
the FER for the smallest and largest diameter in the product range and estimate the
FER
FER for other diameters by interpolation. For gas-shielded metal arc welding with
Diameter
solid wires, determine the FER for at least 1,0 mm and 1,2 mm diameter wires.
Generate chemical composition data by analysis of welding fume generated from any
CC
diameter.
For manual metal arc welding, see Table 2. For gas-shielded metal arc welding with
Current FER and CC solid, metal-cored and flux-cored wires, see Table 3. For self-shielded metal arc
welding with flux-cored wires, see Table 6. Measure the current in the return lead.
For manual metal arc welding, see Table 2. For gas-shielded metal arc welding with
Voltage FER and CC solid, metal-cored and flux-cored wires, see Table 3. For self-shielded metal arc
welding with flux-cored wires, see Table 6.
For manual metal arc welding, see Table 2. For gas-shielded metal arc welding with
Polarity FER and CC solid, metal-cored and flux-cored wires, see Table 3. For self-shielded metal arc
welding with flux-cored wires, see Table 6.
Gas type and For gas-shielded metal arc welding with solid, metal-cored and flux-cored wires, see
FER and CC
gas flow Table 3.
Welding speed FER and CC Use the optimum welding speed, as established by an experienced welder.
Material: Use a test piece of unalloyed steel for generating fume from unalloyed,
low-alloyed, high-alloyed, cast iron, and surfacing consumables. Use a test piece with
a composition that is as similar as possible to that of the weld metal for generating
fume from nickel alloy, aluminium alloy and copper alloy consumables.
Dimensions: Use a test piece of suitable dimensions, such that a weld can be
continuously deposited for the desired arcing time, e.g. use a test piece of commercial
Test piece FER and CC
bar stock, 50 mm width × 10 mm thickness × 250 mm length, for deposition of a linear
weld. Other configurations, such as the deposition of a circular weld on a rotating
plate or pipe of suitable dimensions, may be used, provided that the weld metal is not
deposited on hot metal.
Preparation: Ensure that the surface of the test piece is degreased and free from
surface coating.
Use an inverter power source with ripple-free current, unless this is incompatible with
Power source FER and CC the consumable tested. In other cases, use the power source recommended by the
manufacturer. Note the set-up of the machine on the fume data sheet.
For gas-shielded metal arc welding, use a water-cooled torch with a standard
diameter gas shroud, as recommended by the torch manufacturer. For self-shielded
Torch FER and CC metal arc welding, use a water-cooled torch designed specifically for self-shielded
metal arc welding or use a water-cooled torch designed for gas-shielded metal arc
welding with the gas shroud removed.
Weld bead-on-plate. For gas-shielded metal arc welding and self-shielded metal arc
Configuration FER and CC
welding, position the torch at an angle of 90° to the test piece.
FER = fume emission rate
CC = chemical composition
The following are the reasons why the test requirements are as specified above.
Diameter: FER increases with consumable diameter because higher currents are used with larger diameter
consumables and FER increases with current. Consequently, FER data should ideally be generated for all
product diameters. However, the relationship between current and consumable diameter is linear for
processes within the scope of this part of ISO 15011, other than gas-shielded metal arc welding with solid
wires. Hence, for these processes, it is permissible to generate FER data for the smallest and largest diameter
4 © ISO 2006 – All rights reserved
---------------------- Page: 14 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
consumables in the product range, and estimate the FER of other diameters by interpolation. For gas-shielded
metal arc welding with solid wire welding, the relationship between diameter and FER is not linear and it is
therefore necessary to generate FER data for all wire diameters of interest. Consumable diameter does not
influence CC to any great extent, so it is sufficient to test one diameter only for CC measurements.
Welding speed: The speed of welding does not significantly affect FER or CC. FER is increased at very low
welding speeds, but these are outside the range of optimum working conditions. Hence, it is appropriate to
carry out tests using an optimum welding speed, as established by an experienced welder.
Test piece: Cost considerations support the use of commercial bar stock. The test piece can influence CC
and possibly FER. From this, it is important to use a steel test piece for ferrous consumables and test pieces
made of comparable materials for non-ferrous consumables.
Power source: For gas-shielded metal arc welding, the welding machine type has a great influence on the
FER. Pulse welding is not addressed by this part of ISO 15011, but it is expected that this will exhibit a lower
FER than conventional welding and that the fume generated will have a similar CC.
Configuration: Bead-on-plate tests are recommended because they give a higher FER than fillet welding and
therefore represent the worst-case scenario. A 90° torch angle is used for gas-shielded metal arc welding and
self-shielded metal arc welding because FER is affected by the torch angle, and using this configuration
avoids the need to specify whether the test should be carried out using the push or pull technique. CC is not
affected by the welding configuration.
6.2 Testing of manual metal arc welding electrodes
Generate fume from manual metal arc welding electrodes under the conditions given in Tables 1 and 2.
Table 2 — Parameters for testing of manual metal arc welding electrodes
Parameter Purpose of test Test parameters
Current FER and CC Use 90 % of the maximum of the current range recommended by the manufacturer.
Use optimum operating conditions (i.e. arc length), as established by an experienced
Voltage FER and CC welder, and record the voltage. Attach the reference lead of the measuring instrument to the
electrode holder.
Use the polarity recommended by the manufacturer, or if more than one polarity is
Polarity FER and CC
recommended, generate fume with the polarity used ordinarily.
The following are the reasons why the test requirements are as specified above.
Current: The FER increases with current. Therefore, in order to carry out measurements under typical
operating conditions, tests should be carried out at 90 % of the maximum of the current range given by the
manufacturer. CC does vary somewhat with current, but the effect is not great.
Voltage: Voltage affects both FER and CC. However, the welder will normally establish an optimum arc length
for welding and this determines the voltage. The optimum conditions should not vary much for an experienced
welder.
Polarity: Polarity does not significantly affect CC. The polarity d.c.+ (direct current, inverse polarity) generally
gives a higher FER than a.c., which in turn generally gives a higher FER than d.c.− (direct current, direct
polarity). However, the polarity used ordinarily leads to the most relevant fume emission rate data.
6.3 Testing of solid, metal-cored and flux-cored wires used in gas-shielded metal arc
welding
Generate fume from solid, metal-cored and flux-cored wires used in gas-shielded metal arc welding by
carrying out mechanised welding under the conditions given in Tables 1 and 3.
© ISO 2006 – All rights reserved 5
---------------------- Page: 15 ----------------------
SIST EN ISO 15011-4:2006
ISO 15011-4:2006(E)
Table 3 — Parameters for testing of solid, metal-cored and flux-cored wires used in gas-shielded metal
arc welding
Purpose of
Parameter Test parameters
test
Use the gas type recommended by the manufacturer, or if more than one gas is
Gas type FER and CC recommended, use the most oxidising mixture given by the formula: (1 × CO ) and
2
(2 × O ).
2
Use a gas flow that provides adequate shielding (generally in the range
Gas flow FER and CC
15 to 20 l/min).
Contact tip to Use the contact tip to workpiece distance recommended in Tables 4 and 5. Set the
workpiece current to 90 % of the maximum of the operating range recommended by the
distance, wire FER and CC manufacturer for the diameter of consumable under test and record the wire feed
feed speed and speed.
current
For solid wires, use the optimum operating voltage, as established by an experienced
welder (for spray transfer, this will be the minimum voltage that occurs when the
welder establishes an arc with a small amount of audible crackle).
Voltage FER and CC For metal-cored and flux-cored wires, use the optimum voltage for smooth metal
transfer, within the voltage range recommended by the manufacturer, as established
by an experienced welder.
Attach the reference lead of the measuring instrument to the wire feed unit.
For gas-shielded metal arc welding with s
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.