SIST EN 15426:2019

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kerzen - Spezifikation für das RußverhaltenBougies - Spécification relative à l'émission de suieCandles - Specification for sooting behaviour97.180Razna oprema za dom in trgovinoMiscellaneous domestic and commercial equipment75.140Voski, bitumni in drugi naftni proizvodiWaxes, bituminous materials and other petroleum productsICS:Ta slovenski standard je istoveten z:EN 15426:2018SIST EN 15426:2019en,fr,de01-februar-2019SIST EN 15426:2019SLOVENSKI
STANDARDSIST EN 15426:20081DGRPHãþD



SIST EN 15426:2019



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 15426
November
t r s z ICS
y sä s r rä { { Supersedes EN
s w v t xã t r r yEnglish Version
Candles æ Specification for sooting behaviour Bougies æ Spßcification relative à l 5ßmission de suie
Kerzen æ Spezifikation für das Rußverhalten This European Standard was approved by CEN on
s w July
t r s zä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels
9
t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s w v t xã t r s z ESIST EN 15426:2019



EN 15426:2018 (E) 2 Contents Page European foreword . 3 Introduction . 4 1 Scope . 5 2 Normative references . 5 3 Terms and definitions . 5 4 Sooting behaviour . 6 5 Test equipment and apparatus . 6 6 Sampling . 9 7 Sample preparation . 9 8 General test conditions . 9 9 Test method . 9 9.1 General . 9 9.2 Test preparation . 9 9.3 Burning test . 10 10 Measuring the illuminance of the glass plate . 12 11 Evaluation . 13 12 Test report . 14 Annex A (normative)
Measurement unit . 15 A.1 First operation of the measurement unit . 15 A.2 Calibration of the measurement unit . 15 Annex B (informative)
Hourly fuel consumption . 16 Annex C (informative)
Guidance for selection and setup of the wire mesh cylinder . 17 Bibliography . 20 SIST EN 15426:2019



EN 15426:2018 (E) 3 European foreword This document (EN 15426:2018) has been prepared by Technical Committee CEN/TC 369 “Candle fire safety”, 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 May 2019, and conflicting national standards shall be withdrawn at the latest by May 2019. 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 15426:2007. It should be noted that the following significant changes compared to the previous edition have been incorporated in this document: — improved terms and definitions; — simplified requirement for the sooting behaviour; — clearer description of test equipment and apparatus; — clearer description of the test method including improved illustration for setting up the equipment and new illustrated guidance for selecting the wire mesh cylinder; — modified characteristics of the candles for selecting the soot test cycles; — new informative Annex B for the calculation of the hourly fuel consumption. According to the CEN-CENELEC Internal Regulations, the national standards organisations 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. SIST EN 15426:2019



EN 15426:2018 (E) 4 Introduction Candles have accompanied mankind for more than 2 000 years serving above all as a light source. Closely connected to the development history of the candle are the efforts made to improve its quality and its safety in use. Discussions in the past and present over possible self-forming, harmful emissions and fires caused by unsafe candles and/or inappropriate use during the burning of candles have led to consumer concern for these issues. This document describes the requirements and a simple method for measuring the sooting behaviour of candles. The soot index obtained by this procedure may be considered as characteristic of the sooting behaviour of the type of candle tested. The soot which is emitted from a candle is collected on a glass plate throughout a defined period. Afterwards the attenuation of light intensity caused by soot precipitation is quantified in a measuring chamber. This method helps to ensure a reasonable degree of safety for normal use, thereby improving personal safety. SIST EN 15426:2019



EN 15426:2018 (E) 5 1 Scope This document specifies requirements and the test method for evaluating the sooting behaviour of burning indoor candles. It is applicable to single wick candles with a diameter up to 100 mm or equivalent cross sectional area intended to be burned indoors. NOTE Single wick candles with a diameter above 100 mm or equivalent cross sectional area and multiwick candles cannot be evaluated with this test method for technical reasons. Evaluation of the visible release of soot is a possibility for these candles. 2 Normative references The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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 9044:2016, Industrial woven wire cloth — Technical requirements and tests 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses:
IEC Electropedia: available at http://www.electropedia.org/
ISO Online browsing platform: available at http://www.iso.org/obp 3.1 base material intended fuel source for a candle flame 3.2 candle one or more combustible wicks supported by a material that constitutes a fuel, which is solid or semisolid at room temperature (20 °C to 27 °C) with the main function of sustaining a light-producing flame, including any coatings on and articles or substances in the fuel 3.3 container candle candle that is produced and used in the same container Note 1 to entry: This definition includes tea lights. 3.4 freestanding candle candle that is designed to be used without a supporting holder 3.5 indoor candle candle intended and designed for use inside a house or a building with typical indoor conditions concerning ventilation, draught and temperature Note 1 to entry: An outdoor candle is a candle intended and designed to be used outside buildings in the open air. SIST EN 15426:2019



EN 15426:2018 (E) 6 3.6 measuring period time the candle is burned and soot is collected 3.7 molten fuel pool portion of the fuel of a candle that is in the liquid form when the candle is burning 3.8 residual height height of the candle, measured from the bottom of the candle to the surface of the molten fuel pool 3.9 soot solid, carbon enriched particles, which come into existence when the base material is incompletely burned in the flame and which are subsequently released into the atmosphere 3.10 soot index index number for the evaluation of the sooting behaviour of candles 3.11 soot test cycle total length of time the candle is burned during the stabilizing period, measuring period, including pause 3.12 stabilizing period period of time the candle is burned without collecting soot 3.13 total measuring time total time of all measuring periods 3.14 wick object that delivers fuel to a flame through the process of capillary action 4 Sooting behaviour When tested in accordance with Clause 9, the average soot index per hour from three tests (samples) shall be less than 1,0/h. 5 Test equipment and apparatus 5.1 A wire mesh cylinder1) fixed to a stand of which the height can be adjusted, with a fixture for a glass plate (see Figure 1). The cylinder has a minimum height of 300 mm and consists of wire mesh with an open screening area of (60 ± 5) % according to ISO 9044:2016.
1) Wire mesh cylinder RMG 2.1 is the trade name of a product supplied by Heil Metalle GmbH, Germany. This information is given for the convenience of the user of this European Standard and does not constitute an endorsement by CEN of the product named. Equivalent products may be used. SIST EN 15426:2019



EN 15426:2018 (E) 7 Dimensions in millimetres
a) Type 1 b) Type 2 Key 1 wire mesh 2 stand with height adjustment 3 fixture for glass plate Figure 1 — Wire mesh cylinder 5.2 Measurement unit (e.g. RMG 2.12)) consisting of an indication instrument and a measuring chamber. The measuring chamber consists of the light source, fixture for the heat resistant glass plate, a cover with light reflecting interior coating (at least 90 % reflectivity) with a photodiode integrated in it, which is connected with the indication instrument (see Figure 2). NOTE First operation and calibration of the measurement unit refer to Annex A.
2) RMG 2.1 is the trade name of a product supplied by Heil Metalle GmbH, Germany. This information is given for the convenience of the user of this European Standard and does not constitute an endorsement by CEN of the product named. Equivalent products may be used if they can be shown to lead to the same results. SIST EN 15426:2019



EN 15426:2018 (E) 8
Key 1 detector current 2 photometer 3 photo detector 4 baffle 5 soot precipitation 6 heat resistant glass plate 7 light source Figure 2 — Measurement unit 5.3 Heat resistant glass plates, 100 mm × 100 mm, with a thickness of 3,5 mm to 4,5 mm. Each glass plate shall be marked i
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