EN 15426:2007

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Candles - Specification for sooting behaviourBourgies - Spécification relative de l'indice de suieKerzen - Spezifikation für das RußverhaltenTa slovenski standard je istoveten z:EN 15426:2007SIST EN 15426:2008en,fr,de75.140ICS:SLOVENSKI
STANDARDSIST EN 15426:200801-maj-2008

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 15426November 2007ICS 71.100.99 English VersionCandles - Specification for sooting behaviourBourgies - Spécification relative de l'indice de suieKerzen - Spezifikation für das RußverhaltenThis European Standard was approved by CEN on 23 September 2007.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2007 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 15426:2007: E

Measurement unit.13 Bibliography.14

This European Standard 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.

2 Terms and definitions For the purposes of this European Standard, the following terms and definitions apply. 2.1 base material intended fuel source for a candle flame 2.2 candle one or more combustible wicks supported by a material that constitutes a fuel, which is solid, semisolid or quasi-rigid at room temperature (20 °C to 27 °C) NOTE 1 It can also contain additives, which are used for colour, odour, stability, or to modify the burning characteristics; the combined function of which is to sustain a light-producing flame.
NOTE 2 Including candles with decoration attached to or contained within the candle. 2.3 container candle candle that is produced in and will be burned in a container 2.4
measuring period time the candle is burned collecting soot 2.5 molten fuel pool portion of the wax or fuel pool of a candle that is in the liquid form when the candle is burning 2.6 soot solid, carbon enriched particles, which come into existence when the burning material in the flame is incompletely burned and which are subsequently released into the atmosphere 2.7 soot index index number for the evaluation of the sooting behaviour of candles 2.8 soot test cycle total length of time the candle is burned during the stabilizing period, measuring period, including pause 2.9 stabilizing period period of time the candle is burned without collecting soot
2.10 tea light cylindrical candle that is burned in a container, which may be suitable to keep vessels containing coffee, tea or other liquids warm, by using a warming stove

NOTE Wax melts typically at temperatures equal to or greater than 40 °C and becomes a low viscosity liquid. Waxes may be of mineral (particularly petroleum), vegetable, animal (including insect), or synthetic origin. 2.13 wick object that delivers fuel to a flame through the process of capillary action 3 Sooting behaviour When tested in accordance with clause 8, the average soot index from three tests (samples) shall be less than 1,0/h, no individual sample shall exceed 2,0/h. 4 Test equipment and apparatus 4.1 A wire mesh cylinder RMG 2.11)
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 a permeability of (60 ± 5) %.
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 if they can be shown to lead to the same results.

a min. height = 300 mm b diameter, Type 1: d = 230 mm; Type 2: d = 300 mm c stand d glass plate e wire mesh Figure 1 — Wire mesh cylinder 4.2 Measurement unit consisting of an indication instrument and a measuring chamber. The measuring chamber consists of the light source, fixture for the heat resisting glass plate, a cover with light reflecting interior coating with a phot
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