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BRITISH STANDARD BS EN 1:1998 Incorporating amendment no Flued oil stoves with vaporizing burners The European Standard EN 1:1998, incorporating amendment A1:2007, has the status of a British Standard ICS 91.140.20 Confirmed March 2008 BS EN 1:1998 National foreword This British Standard is the official UK version of EN 1:1998, incorporating amendment A1:2007 The start and finish of text introduced or altered by amendment is indicated in the text by tags !" Tags indicating changes to CEN text carry the number of the CEN amendment For example, text altered by CEN amendment A1 is indicated by !" The UK participation in its preparation was entrusted to Technical Committee RHE/13, Oil burning equipment A list of organizations represented on this committee can be obtained on request to its secretary This publication does not purport to include all the necessary provisions of a contract Users are responsible for its correct application Compliance with a British Standard cannot confer immunity from legal obligations This British Standard, having been prepared under the direction of the Engineering Sector Board, was published under the authority of the Standards Board and comes into effect on 15 September 1998 © BSI 2007 ISBN 978 580 59195 Amendments issued since publication Amd No Date Text affected 17134 29 June 2007 See national foreword EN EUROPEAN STANDARD NORME EUROPÊENNE May 1998 + A1 EUROPẰISCHE NORM April 2007 ICS 91.140.20 Descriptors: Heaters, liquid fuel appliances, oil stoves, oil burners, combustion product discharge, definitions, equipment specifications, performance evaluation, measurements, name plates, technical notices, marking English version Flued oil stoves with vaporizing burners PoeÃles aÁ combustible liquide avec bruÃleurs aÁ vaporisation raccordeÂs aÁ un conduit d'eÂvacuation des produits de la combustion HeizoÈfen fuÈr fluÈssige Brennstoffe mit Verdampfungsbrennern und Schornsteinanschluû This European Standard was approved by CEN on 26 February 1998 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, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom CEN European Committee for Standardization Comite EuropeÂen de Normalisation EuropaÈisches Komitee fuÈr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels  1998 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members Ref No EN 1:1998 E Page EN 1:1998 Foreword Contents Page This European Standard has been prepared by Technical Committee CEN/TC 46, Oil stoves, the secretariat of which is held by DIN This European Standard replaces EN 1:1980 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 November 1998, and conflicting national standards shall be withdrawn at the latest by November 1998 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, Greeze, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom Foreword to amendment A1 This document (EN 1:1998/A1:2007) has been prepared by Technical Committee CEN/TC 46 ‘‘Oil stoves’’, the secretariat of which is held by DIN Foreword Introduction Scope Normative references 3 Definitions Constructional requirements Performance and operating requirements 6 Tests Instructions and marking of the appliance 14 Evaluation of conformity 15 Annex A (normative) Measuring methods for determining the smoke number 18 Annex B (normative) Fluid method for detecting oil derivatives 18 Annex C (normative) Measurement of nitrogen oxides 30 Annex D (normative) Measurement of total hydrocarbons (THC) 32 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/1065/EC, EU Construction Products Directive 33 Bibliography 37 This Amendment to the European Standard EN 1:1998 shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2007, and conflicting national standards shall be withdrawn at the latest by January 2009 This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s) For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document 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, 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 © BSI 2007 Page EN 1:1998 Introduction Definitions This standard specifies the constructional and operating requirements, conditions for functional testing, and marking and instructions for flued oil stoves with vaporizing burners For the purposes of this standard, the following definitions apply: Scope !This standard applies to flued oil stoves with one or more vaporizing burners (hereafter referred to as ‘‘stoves’’) as used for individual heating in the domestic field and having either a draught regulator or a combustion air limiter as defined in 3.13 and a nominal heating capacity of not more than 15 kW This standard also applies to appliances with fan assisted vaporizing burners This standard does not cover 3.1 flue gas flue gas is the product of combustion leaving the stove by means of the flue gas outlet 3.2 flue gas mass flow flue gas mass flow is the mass of flue gas being evacuated over a given period of time 3.3 steady operating condition of the stove steady operating condition of the stove the operating condition of the stove corresponding to a given heat input in which the flue gas temperature in the measuring sleeve (see Figure B.3) does not vary by more than K over a period of 15 — built-in appliances — appliances equipped with an atomizing burner — appliances incorporating a boiler or connected to a water system According to the type of fuels used in the country of destination, the stoves are supplied for use with either: 3.4 control device the control device is a component of the oil regulator for adjusting the oil flow from a closed to a maximum open position — fuel oil with a maximum kinematic viscosity of 6,0 mm²/s at 20 °C — or kerosene with a flash point of not less than 40 °C " 3.5 maximum oil flow position the maximum oil flow position is the control device setting with the maximum oil flow to the burner Normative references This European Standard incorporates by dated or undated reference, provisions from other publications These normative references are cited at the appropriate places in the text and the publications are listed hereafter For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision For undated references the latest edition of the publication referred to applies EN 50165, Electrical equipment of non-electric appliances for household and similar purposes — Safety requirements !EN 60335-2-102:2006 Household and similar electrical appliances – Safety – Part 2-102: Particular requirements for gas, oil and solid-fuel burning appliances having electrical connections (IEC 60335-2-102:2004, modified) ISO 2859 (all parts) Sampling procedures for inspection by attributes" © BSI 2007 3.6 heating gases heating gases are the combustion gases flowing inside the stove 3.7 minimum oil flow position the minimum oil flow position is the control device setting with the minimum oil flow to the burner 3.8 nominal heating capacity the nominal heating capacity is the heating capacity indicated on the rating plate 3.9 storage tank the storage tank is the part in the stove from which the burner is supplied with fuel 3.10 oil derivatives oil derivatives are the organic substances which are deposited onto the filter paper when determining the smoke number Page EN 1:1998 3.11 oil regulator the oil regulator is a device which ensures an adjustable, constant flow of oil to the burner 3.12 smoke number smoke number (SN) is the degree of blackening which the soot causes on white filter paper under the conditions specified in this standard 3.13 combustion air limiter the combustion air limiter is a device for limiting the combustion air supply 3.14 combustion air conveyor the combustion air conveyor is a device for conveying the combustion air supply 3.15 combustion chamber the combustion chamber is the area in the stove where combustion takes place 3.16 vaporizing burner the vaporizing burner is a burner in which combustion of the fuel occurs under the effect of heat and, together with the combustion air, forms a combustible fuel vapour/air mixture 3.17 heat input the amount of heat supplied by the fuel on an hourly basis to the stove, calculated using the calorific value, Hi of the fuel 3.18 heating capacity the heating capacity is the useful amount of heat given off hourly by the stove 3.19 efficiency efficiency is the ratio of the actual heating capacity to the related heat input, expressed as a percentage 3.20 ignition device the ignition device is a built-in device for igniting the fuel vapour/air mixture !3.21 content of NOx content of NOx in the dry flue gases measured as volume in ppm, calculated as NO2, expressed in mg/MJ" !3.22 content of unburnt hydrocarbons content of unburnt hydrocarbons in the dry flue gases measured as volume in ppm, calculated as C3H8, expressed in mg/MJ" Constructional requirements 4.1 Heating capacity The nominal heating capacity, expressed in kilowatts, shall be: — selected by the manufacturer; — verified during the tests; — indicated on the rating plate The nominal heating capacity shall be rounded off to the nearest multiple of 500 W 4.2 Materials The quality of the materials as well as the shape and dimensions of the components shall ensure that, provided the operational procedures are met and with the associated mechanical, chemical and thermal stresses which occur, the stoves will remain safe and operable over a given period !The stove shall be fire-resistant and safe to operate, and shall be designed such that — no visible deformations following the performance tests according to Clause occur; — it can withstand the stresses arising during normal operation; — the burner and the stove cannot become heated to create a hazard; — dangerous accumulations of combustible gases (fuel mixed with air) in the combustion chamber and in the flues are prevented (for automatically operated burners only); — gases cannot leak from the stove in dangerous quantities The stove shall be made of non-combustible materials except that combustible materials shall be allowed for the following: — components of accessories e.g burner covers, if the parts are fitted outside of the boiler; — internal components of controls and safety equipment; — operating handles; — electrical equipment Component parts of covers, operating, control and safety devices and electrical accessories shall be arranged in such a way that their surface temperatures, under steady state conditions, not exceed those specified either by the manufacturer or in the component part standard." © BSI 2007 Page EN 1:1998 !NOTE Because the entire heat dissipating surfaces of the appliance including the flue spigot/socket and the flue gas connector are working surfaces, there is no requirement for limiting the surface temperature of the appliance." 4.9 Fuel lines 4.3 Combustion chamber The fuel lines shall be resistant to the fuel and shall not exceed the maximum permissible surface temperatures specified by the manufacturer The combustion chamber shall be properly sealed and fitted with a device (e.g lid, door, etc.) which cannot be locked, and designed to compensate for any excess pressure 4.4 Filter The fuel lines shall not be load-bearing parts of the construction Removable fuel lines shall be connected by means of metal screw threads including at least four engaged threads The sealing of the parts containing fuel shall be such that there is no leakage or seepage The stove shall include at least one filter situated either before or inside the oil regulator and a strainer in the filling orifice The filter shall retain particles with a diameter of over 0,25 mm The filter and strainer shall be easy to remove and clean !It shall not be possible to remove any component in the oil supply line to the burner without the use of a tool." 4.5 Oil regulator 4.10 Storage tank Oil regulators, or equivalent devices, shall maintain the flow of oil reaching the burner at a constant value corresponding to the setting selected When the stove includes a storage tank, its effective capacity shall enable operation of the stove for: The closed and maximum open positions shall each have a limiting stop The minimum position shall be clearly marked and be sensed as a resistance that can be overcome mechanically 4.6 Marking of operating settings The control device for the oil regulator shall have clearly visible and permanent markings 4.7 Safety device The stove shall have a safety device to prevent overflowing of the oil from the burner 4.8 Fan for the supply of combustion air Irrespective of the operating setting of the stove, the supply of combustion air from the fan shall not create excess pressure in the combustion chamber The operation of the fan shall be trouble free The function of the burner shall be linked with that of the fan In the event of a failure of the fan, the flow of oil to the burner shall be either totally interrupted or reduced to a flow such that the smoke number does not exceed the maximum permissible value for the operation of the burner without the fan If the fuel supply to the burner is completely cut off by an electric current failure, then for manually operated burners (without automatic ignition), when the current is restored, the fuel shall be readmitted to the burner manually For automatically operated burners (automatic ignition), when the current is restored, the ignition without a blow-out shall be ensured © BSI 2007 — at least 10 h in the case of nominal heating capacity u kW; and — at least h in the case of a nominal heating capacity > kW The filling orifice of the storage tank shall have a cap It shall be possible to cut off the supply of fuel from the storage tank to the burner be means of a shut-off device fitted before the oil regulator If it is a rotary device, closing shall be by turning in a clockwise direction !To ensure that any fire external to the stove is not transmitted to the contents of the built-in storage tank or, if a fire does occur, its effects are limited by either the tank being made of non-combustible materials e.g metal or be enclosed with non-combustible fire resisting materials or construction Any fuel lines from the tank to the burner shall also be fire resistant The filling orifice of the built-in storage tank shall have a cap and shall be easily accessible and it shall be so arranged that when filling the tank with fuel it is not possible to ignite the fuel from any hot components." 4.11 Oil-level indicator Built-in storage tanks shall have an oil-level indicator 4.12 Drip tray !Any stove incorporating a built-in storage tank shall incorporate a drip tray, below the parts of the stove containing fuel, for the collection of any spillage, having an edge height of a least 10 mm (inside depth) and capacity of a least dm3." Page EN 1:1998 4.13 Flue outlet The flue outlet can be of the push-on or push-in type and shall have a circular cross-section at its end and permit the attachment of a flue gas pipe, the diameter of which compiles with the applicable standards of the country in which the stove is to be installed It shall be possible to fit a flue pipe, having a diameter D in a length D/4, but at least 30 mm, onto or into the flue outlet 4.14 Damper Dampers or other movable devices for restricting the flow of flue gases are not permitted 4.15 Draught regulators and combustion air limiters Draught regulators shall be able to be set in a permanent manner at the maximum draught indicated by the manufacturer This value shall be given in the installation instructions Draught regulators and combustion air limiters built into the stove shall be fitted at the manufacturer's works and shall operate automatically One of these two devices shall be fitted if the stove has no fan for the supply of combustion air 4.16 Assembly The stove shall be supplied by the manufacturer with all parts assembled; the flue outlets and burner rings may be built in subsequently Non-removable parts shall be securely fitted in their position of use For removable parts, see 7.2 4.17 Maintenance Parts which are removable to allow for maintenance and cleaning shall be readily accessible and designed so that they can be correctly reassembled in accordance with the manufacturer's instructions !Controls and safety devices shall be coupled so that operation of each occurs in the correct sequence and timing; coupling may be electrical or mechanical The controls and safety devices shall: a) ensure that the start-up sequence is not able to commence unless the flame sensing equipment has confirmed the no-flame condition; b) establish satisfactory ignition of the oil; c) maintain normal operation if the flame is satisfactorily established, and switch off ignitor; d) automatically vary the burner firing rate, where applicable; e) stop the burner when the demand for heat is satisfied; f) stop the oil supply and lock-out system if flame is not satisfactorily established; g) provide means for a visible or audible indication that the unit is in a lock-out condition; h) ensure that any interruption of the electricity supply does not give rise to a dangerous condition If the control sequences are such that an attempt to re-ignite the burner can be made the burner shall either: i ignite and burn in a safe manner whilst the surplus oil is burnt off and the burner is returning to normal operation conditions; or ii not ignite Manually operated dampers or other movable devices for restricting the flow of gases shall not be fitted Automatically operated dampers, if fitted, shall be interlocked with the fuel supply and arranged so that the burner cannot operate with a closed flue." !5 Performance and operating requirements" Under the test conditions given in clause 6, the !4.18 Additional requirements for appliances following requirements shall be met with automatic burners 5.1 Maximum oil flow The burner and control system in combination shall With the control device in the maximum position, be such that, in the event of failure to ignite when the heating capacity shall be equal to, or greater starting, the burner will assume a safe condition than, the nominal heating capacity (lock-out) and will require a manual reset of its sequencing control In the event of a flame failure 5.2 Minimum oil flow occurring when running, the appliance shall fail With the control device in the minimum position, safe the average hourly oil flow shall not exceed A temperature or pressure sensing device shall be one-third of the nominal flow at nominal heating provided on the appliance to start and stop the capacity Stoves having a maximum flow burner In addition, a separately operating limiting of 0,200 kg/h in the minimum setting are excluded device shall be provided to stop the burner before from this requirement the temperature in the appliance exceeds safe limits." © BSI 2007 Page EN 1:1998 If the control device of oil-fired heating appliances is reduced by hand, the maximal rate shall not be more than 50 % of the oil rate per hour at nominal heat input 5.3 Ignition It shall be possible easily to light the burner from cold following the manufacturer’s operating instructions !5.7 CO in the flue gases" The emission of carbon monoxide (CO) in the flue gases, of an amount of fuel corresponding to MJ (based on Hi), shall not exceed the value of 0,4 g/MJ at all rates of operation This value shall be calculated as the mean value from the tests as described in 6.5.2.1, 6.5.2.2 and 6.5.3.2 !In addition for appliances of class according to Table 1, the content of CO measured at nominal heat output and at low rate shall not exceed 20 mg/MJ." !5.4 Appliance classes for efficiency and emissions The requirements of Table shall be fulfilled as appropriate to the appliance class Table — Appliance Classes Appliance Class CO mg/MJ C n Hm mg/MJ NOx mg/MJ Efficiency at nominal heat output % appliances < kW 1a 2b 3b 4b 5b a b 020 400 400 400 400 — — — — 35 — — — — 78 75 75 70 60 appliances U kW 81 75 75 70 60 Smoke number Gas oil Kerosene 3 — 2 — measured at nominal heat output and low rate only measured in the whole heat output range NOTE National regulations might request the statement of efficiency values as well as the class Therefore in these cases it is allowed to state the efficiency value in addition on the data plate and/or in the technical information (see 7.4) NOTE National regulations might request the statement of efficiency values in addition to these measured at nominal heat output." 5.5 Smoke number !For appliances of the classes 1, and according to Table 1, in the whole heat output range the smoke number shall not exceed for gas oil and for kerosene For appliances of class according to Table 1, at nominal heat output and at low rate only the smoke number shall not exceed for both gas oil and kerosene The flue gases shall not contain oil rest particles Under the test conditions of 6.5.1.2, 6.5.1.4 and 6.5.3.1 for gas oil, the smoke number may be one more." 5.6 Flue gas temperature During the tests, the flue gas temperature shall not be less than 90 K, nor more than 350 K, above the ambient temperature © BSI 2007 5.8 Oil temperature The temperature of the fuel in the built-in storage tank and oil regulator shall not exceed 20 K above ambient temperature for fuel oil, or 15 K above ambient temperature for kerosene 5.9 Floor temperature The surface temperatures of the underside of the drip tray, shall not exceed 45 K above ambient temperature when using fuel oil, or 35 K above ambient temperature when using kerosene The surface temperatures of the floor shall not exceed 60 K above ambient temperature !This requirement is not applicable if the manufacturer states that the appliance shall not be installed on combustible floor." 5.10 Wall temperature The surface temperatures of the walls, behind and adjacent to the stove, shall not exceed 60 K above ambient temperature at the minimum clearances given by the manufacturer in the installation instructions under the test conditions described in 6.5 !This requirement is not applicable if the manufacturer states that the appliance shall not be installed adjacent to combustible walls." Page EN 1:1998 5.11 Temperature of the control knobs Temperature measuring devices The temperatures of the control knobs on their contact surface shall not exceed ambient temperature by more than: Continuous recording equipment for determining the flue gas temperature with a measuring tolerance of max ±2,5 K — 35 K for metals; — 45 K for porcelain; — 60 K for plastics This also applies to other similar materials Continuous recording equipment for determining the ambient temperature with a measuring tolerance of max ±0,5 K These temperatures may be exceeded if the stove is supplied with an accessory with which it is possible to operate the adjustment devices easily and without the risk of burning The tests shall be carried out as described in 6.5.2.1 !5.12 Electrical safety EN 60335-2-102 shall apply with the following condition: The tests described in Clause 19 of EN 60335-2-102:2006 shall not apply for safety relevant circuits when the mechanical components ensure that any failure or interruption of the electronic circuits does not affect the safe operation of the appliance 5.13 NOx and unburnt hydrocarbons (CnHm) in the flue gases In addition for appliances of class only according to Table 1, measured at nominal heat output and at low rate the content of NOx must not exceed 35 mg/MJ and the content of unburnt hydrocarbons must not exceed mg/MJ." Tests 6.1 Test apparatus 6.1.1 General !The stove shall be installed on test apparatus (see Figure B.1) and connected to the test chimney by means of measuring sleeve (see Figures B.2 and B.3) The test floor and walls together with the accessories shall be as shown in figures by B.4a, B.4b and B.4c." The measuring equipment shall meet the following requirements: CO2 concentration of flue gases Continuous recording equipment for determining the CO2 content with a measuring tolerance of max ±0,2 % by volume CO concentration of the flue gases Continuous recording equipment for determining the CO content with a measuring tolerance of max ±0,005 % by volume Equipment for measuring the fuel temperature in the storage tank and oil regulator, the temperature of the fuel lines, on the floor, on the underside of the drip tray, the test wall temperatures and the control knobs with a measuring tolerance of ±1 K Measurement of the draught Continuous recording equipment for determining the draught during operation and with a measuring tolerance of max ±0,5 Pa Measurement of the smoke number Intermittent recording equipment or manually operated device as shown in Annex A for recording at least one measured value in a 15 period Measurement of the quantity of fuel supplied !Gravimetric measuring process for determining the quantity of fuel supplied using a weighing tank and scale having a measuring tolerance of ± 10 g and a scale graduation of at least g or an equivalent volumetric measuring process Add the following new measurement equipment downstream the measurement equipment for CO in the flue gases: — NOx-content in the flue gases Continuously recording instrument for the measurement of NOx-content with an inaccuracy of maximal ±5 ppm — CnHm-content in the flue gases Continuously recording instrument for the measurement of CnHm-content with an inaccuracy of maximal ±5 ppm More information to measurement of nitrogen oxides (NOx) and total hydrocarbons (CnHm) are given in Annexes C and D The draught regulator shall be inoperative during the tests If a locking device is available, this shall be locked during the tests and unlocked, if necessary, when the stove is installed." 6.1.2 Testing of stoves having several possible outlet connections If the stove to be tested has several possible outlet connections, the tests described in 6.5.1.1 to 6.5.3.3 shall be carried out on one outlet connection For each of the other possible outlet connections, the short-term tests as described in 6.5.1 shall be carried out without altering the oil flow in the oil © BSI 2007 Page 24 EN 1:1998 1) Apparatus for connection 2) Centre of flue outlet 3) h W 500 mm above the height of the equipment 4) Matt black surface NOTE The dimensions of the test apparatus should be such that the distance of 300 mm between the stove and the wall, when using the largest stove for which the apparatus is intended, is maintained Figure B.4a) — Test floor and walls with fittings © BSI 2007 Page 25 EN 1:1998 Dimensions in millimetres 1) Wood 2) Aluminium foil 3) Thermocouples intended to determine the maximum temperatures around the flue pipe connection Figure B.4b) — Apparatus for pipe connection © BSI 2007 Page 26 EN 1:1998 Dimensions in millimetres 1) Measurement device 2) Thermocouple 3) Wood 4) Matt black surface [front] !NOTE The thermocouples in the floor of the test trihydron should be designed in the same way." Figure B.4c) — Section A-A of the test wall © BSI 2007 Page 27 EN 1:1998 Figure B.5 — Mean specific heating capacity of the wet flue gas in kJ/m3·· °C © BSI 2007 Page 28 EN 1:1998 1) To chimney 2) Low draught condition 3) Draught regulator in closed position 4) Flue gas from appliance 5) High draft condition 6) Draught regulator in open position Figure B.6a) — Draught regulator [diagrammatic] © BSI 2007 Page 29 EN 1:1998 1) Low draft condition 2) Combustion air limiter in open position 3) Combustion chamber 4) High draft condition 5) Combustion air limiter in closed position 6) Burner Figure B.6b) — Combustion air limiter © BSI 2007 Page 30 EN 1:1998 !Annex C (normative) Measurement of nitrogen oxides C.1 General objective and applicability These methods are intended to determine the content of nitrogen oxides in flue gases from small combustion appliances The methods are continuous The result obtained is expressed as equivalents of nitrogen dioxide (NO2) C.2 General procedure The measurement is extractive, i.e the test gas flow is drawn from the measuring point by the suction pyrometer and is analysed by an arrangement of a complete measuring system as shown in Figure C.1 (example) This system is suitable for use with all the analysers described in C.3 a) NO-measuring device b) NO/NOx-measuring device Key Gas sampling probe Particulate filter Heating Sampling line (heated if necessary) Sample cooter with condensate separator Sample pump Filter Needle valve Flow meter 10 NO-analyser 11 Recorder 12 Inlet for zero and calibration gas (preferable in front of the filter) to check the complete system 13 Bypass for excess gas 14 Inlet for zero and span gas to check the analyser 15 Converter 16 NO/NOx-analyser Figure C.1 — Example of installation of measuring devices " © BSI 2007 Page 31 EN 1:1998 !C.3 Measuring principles of analysers The following examples describe typical principles found in existing analysers Chemoluminiscence method If NO reacts with ozone (O3), NO2 is formed Part of the NO2 is in a photochemically excited state When returning to the basic state, these NO2 molecules can radiate light in the wavelength range of 590 nm to 3.000 nm The intensity of this light depends on the NO content and is influenced by the pressure and presence of other gases Figure C.2 shows an example for the basic arrangement of a chemoluminscence analyser There are atmospheric pressure and low pressure analysers, depending on the pressure in the reaction chamber Some analysers have built-in NO2/NO converters and, because of their structure, give signals for NO, NOx, and NO2 either simultaneously or in sequence The measuring range of chemoluminiscence analysers used for emission measurements extends from 10 mg/m3 to 20.000 mg/m3 Interference due to carbon dioxide (CO2) in the sample gas is possible, particularly in the presence of water vapour, due to the quenching of the chemoluminscence The extent of the quenching depends on the CO2 and H2O concentrations and the type of analyser used Any necessary corrections shall be made to the analyser output either by reference to correction curves supplied by the manufacturers or by calibrating with gases containing approximately the same concentration of CO2 as the sample gas Non-dispersive infrared (NDIR) method The most common application of the IR method are analysers working according to the NDIR method Gases which consist of molecules of different atoms absorb light of the characteristic wavelength in the infrared spectral region With the NDIR method, spectral analysis of the IR radiation is omitted and the total absorption of the NO molecule at Émax = 1.876 cm-1 (= 5,3 4m) is used for the measurement Figure C.3 shows an example of a typical NDIR analyser." Key Sample inlet Sample pump Magnetic valve NOx: NO converter Flow regulator Pressure regulator Reaction camber Photomultiplier Electronics 10 Oxygen inlet 11 Pressure regulator 12 Ozone regulator 13 Ozone filter 14 Signal 15 Bypass Figure C.2 — Example of an arrangement of a chemoluminescence analyser © BSI 2007 Page 32 EN 1:1998 ! Key Light source Chopper motor Copper wheel Measuring cell Reference cell Detector Electronics Signal Figure C.3 — Example of a NDIR analyser The radiation emitted from the IR source is divided into two beams and then modulated, one beam passing through the measuring cell and the other through the reference cell containing an IR inactive gas, usually nitrogen If the sample gas contains NO, some of the IR energy is absorbed and the difference in IR energy reaching the detector is proportional to the amount of NO present The detector is designed so that it is only sensitive to the NO-specific wavelengths A special arrangement of the NDIR method is the gas filter correlation method Interference is possible, particularly with water vapour Other methods Beside the two methods mentioned above there are the Non-dispersive ultraviolet (NDUV) method and the Nonextractive (in situ) method These methods are described in detail in ISO 10849 Annex D (normative) Measurement of total hydrocarbons (THC) D.1 General objective and applicability This method is intended to determine the total hydrocarbon content in flue gases from appliances burning solid fuels The method uses an instrument equipped with a flame ionisation detector (FID) The measurement is continuous The result obtained is expressed as equivalents of a reference substance, usually methane or propane The measurement concerns only the total hydrocarbon content and does not give any information of separate constituents D.2 General procedure The measurement is extractive, i.e the test gas flow is drawn from the measuring point and is analysed in a freestanding instrument The measuring point shall be in the centre of the flue gas pipe and be placed three diameters after the flue gas outlet of the appliance If there is a damper or any other device which will give rise to inhomogenities in the flow the measuring point shall be moved to a position where the flow is homogenous The measuring system shall be heated to 195 °C D.3 Equipment The measuring system consists of the following components: — Instrument with flame ionisation detector, FID Measuring range, usually between 0–10 and 0–100 000 ppm The instrument shall be equipped with a heated filter — Gas probe with a filter for particulates The probe shall consist of a suitable material, such as corrosion resistant steel The filter shall be heated so that condensation is avoided This requires a temperature in the filter of 195 °C — Sample line The sample line shall be heated to the same temperature as the filter The inner line shall be of PTFE and be exchangeable The sample line shall be as short as possible." © BSI 2007 Page 33 EN 1:1998 !Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 89/106/EEC, EU Construction Products Directive ZA.1 Scope and relevant characteristics This European Standard has been prepared under Mandate M/129 ‘‘Space heating appliances’’ given to CEN by the European Commission and the European Free Trade Association The clauses of this European Standard shown in this annex meet the requirements of the Mandate given under the EU Construction Products Directive (89/106/EEC) Compliance with these clauses confers a presumption of fitness of the construction products covered by this annex for their intended uses indicated herein reference shall be made to the information accompanying the CE marking WARNING: Other requirements and other EU Directives, not affecting the fitness for intended use can be applicable to the construction products falling within the scope of this standard NOTE In addition to any specific clauses relating to dangerous substances contained in this standard, there may be other requirements applicable to the products falling within its scope (e.g transposed European legislation and national laws, regulations and administrative provisions) In order to meet the provisions of the EU Construction Products Directive, these requirements need also to be complied with, when and where they apply NOTE An informative database of European and national provisions on dangerous substances is available at the Construction web site on EUROPA (accessed through http://europa.eu.int/comm/enterprise/construction/internal/ dangsub/dangmain.htm) This annex has the same scope as Clause of this standard It establishes the conditions for the CE marking of oil stoves including open fires intended for the use indicated below and the relevant clauses applicable (see Table ZA.1) Construction Product: Oil stove with vaporizing burner mounted to a chimney Intended uses: Space heating in buildings Table ZA.1 — Relevant Clauses Essential Characteristics Requirement clauses in this EN Notes Fire safety 4.3, 4.5, 4.7, 4.10, 4.12, 4.16, 5.6, 5.8, 5.9, 5.10, 5.12 Limit values 4.2, 4.8, 4.9, 4.13, 4.17, 7.2 4.10, 4.12, 5.5, 5.6, 5.7, 5.8 Product quality Limit values Release of dangerous gases; dangerous substances or gases in 4.2, 4.3, 4.7, 4.8, 4.9, 4.13, 4.17, 7.2 the air 4.14, 7.1 Product quality General requirements Surface temperature 6.5.3 4.2, 4.3, 5.8, 5.9, 5.10, 5.11 Test procedure Limit values Electrical safety 5.12 General requirements Cleanability 4.17 Product quality Flue gas temperature 5.6 Limit values Mechanical resistance Rated thermal output Durability 4.2 4.1, 4.15, 4.17, 5.12, 7.2 Product quality Product quality 5.4, 5.6 Limit values 7.1 4.2 General requirements " © BSI 2007 Page 34 EN 1:1998 !The requirement on a certain characteristic is not applicable in those Member States where there are no regulatory requirements on that characteristic for the intended end use of the product In this case, manufacturers placing their products on the market of these Member States are not obliged to determine nor declare the performance of their products with regard to this characteristic and the option ‘‘No performance determined’’ (NPD) in the information accompanying the CE marking (see Clause ZA.3) may be used The NPD option may not be used, however, where the characteristic is subject to a threshold level ZA.2 Procedure for the attestation of conformity of oil stoves ZA.2.1 System of attestation of conformity The system of attestation of conformity of fuel oil stoves indicated in Table ZA.1, in accordance with the decision of the Commission 99/471 of 1999-09-17 amended by 01/596/EC and as given in Annex III of the mandate for flued oil stove, is shown in Table ZA.2 for the indicated intended use(s) and relevant level(s) and class(es) Table ZA.2 — Attestation of conformity systems Product Intended use Level(s) or class(es) Attestation of conformity system Space heating appliances Space heating in See Table ZA.1 burning liquid fuel buildings System 3: See Directive 89/106/EEC (CPD) Annex III.2.(ii), Second possibility The attestation of conformity of the oil stoves in Table ZA.1 shall be according to the evaluation of conformity procedures indicated in Table ZA.3 resulting from the application of the clauses of this European Standard indicated therein Table ZA.3 — Assignment of evaluation of conformity tasks (for system 3) Evaluation of conformity clauses to apply Tasks Content of the task Factory production control (F.P.C) Tasks under responsibility for Initial type testing by the the manufacturer manufacturer Parameters related to all relevant characteristics of Table ZA.1 8.3 All other relevant characteristics of Table ZA.1 other than those shown 8.2 below Fire safety Tasks under responsibility for Initial type testing by a the notified test laboratory manufacturer Emission of combustion products Surface temperature 8.2 Thermal output/Energy efficiency Release of dangerous substance ZA.2.2 Declaration of conformity When compliance with this annex is achieved, the manufacturer or his agent established in the EEA, shall prepare and retain a declaration of conformity, which entitles the manufacturer to affix the CE marking This declaration shall include: — name and address of the manufacturer, or his authorised representative established in the EEA, and place of production, — description of the product (type, identification, use, ), and a copy of the information accompanying the CE marking, — provisions to which the product conforms (e.g Annex ZA of this EN), — particular conditions applicable to the use of the product, — name and address (or identification number) of the notified laboratory(ies), — name of, and position held by, the person empowered to sign the declaration on behalf of the manufacturer or his authorised representative The declaration shall be presented in the language(s) of the Member State of use of the product." © BSI 2007 Page 35 EN 1:1998 !ZA.3 CE Marking and labelling The manufacturer or his authorised representative established within the EEA is responsible for the affixing of the CE marking The CE marking symbol shall be in accordance with Directive 93/68/EEC and shall be shown on the flued oil stove (or when not possible it may be on the accompanying label, the packaging or on the accompanying commercial documents e.g a delivery note) The following information and characteristics shall accompany the CE marking symbol: — name and address of the manufacturer NOTE The manufacturer may also be the person responsible for placing the product onto the EEA market, if he takes responsibility for CE marking — last two digits of the year of CE marking NOTE Where some of the information required for the Declaration is already given in the CE marking information, it does not need to be repeated — number of this standard (EN 1) — product name and type — recommended fuel type (or types) — distance to adjacent combustible materials — emission of combustion products (Appliance class according to Table 1) — flue gas temperature — thermal output — energy efficiency (Appliance class according to Table 1) The NPD (‘‘No performance determined’’) option shall not be used where the characteristic is subject to a threshold level Otherwise, the NPD option may be used when and where the characteristic, for a given intended use, is not subject to regulatory requirements Figure ZA.1 gives an example of the information to be given on the accompanying commercial documents." © BSI 2007 Page 36 EN 1:1998 ! CE conformity marking, consisting of the “CE”symbol given in Directive 93/68/EEC AnyCo Ltd, P.O Box 21, B – 1050 07 Name or identifying mark and registered address of the producer Last two digits of the year in which the marking was affixed EN Flued oil stoves with vaporizing burners, intended to be used as space heater burning oil Type: Description of product 01 Distance to combustible materials: 140 cm appliance class: No of European Standard Information on regulated characteristics class Thermal output: 4,5 kW Kind of fuel: gas oil Electrical safety: pass Figure ZA.1 — Example CE marking information In addition to any specific information relating to dangerous substances shown above, the product should also be accompanied, when and where required and in the appropriate form, by documentation listing any other legislation on dangerous substances for which compliance is claimed, together with any information required by that legislation NOTE European legislation without national derogations need not be mentioned NOTE Affixing the CE marking symbol means, if a product is subject to more than one directive that it complies with all applicable directives." © BSI 2007 Page 37 EN 1:1998 !Bibliography [1] EN ISO 9001, Quality management systems — Requirements (ISO 9001:2000)" © BSI 2007 BS EN 1:1998 BSI — British Standards Institution BSI is the independent national body responsible for preparing British Standards It presents the UK view on standards in Europe and at the international level It is incorporated by Royal Charter Revisions British Standards are updated by amendment or revision Users of British Standards should make sure that they possess the latest amendments or editions It is the constant aim of BSI to improve the quality of our products and services We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible, the identity of which can be found on the inside front cover Tel: +44 (0)20 8996 9000 Fax: +44 (0)20 8996 7400 BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards Buying standards Orders for all BSI, international and foreign standards publications should be addressed to Customer Services Tel: +44 (0)20 8996 9001 Fax: +44 (0)20 8996 7001 Email: orders@bsi-global.com Standards are also available from the BSI website at http://www.bsi-global.com In response to orders for international standards, it is BSI policy to supply the BSI implementation of those that have been published as British Standards, unless otherwise requested Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service Various BSI electronic information services are also available which give details on all its products and services Contact the Information Centre Tel: +44 (0)20 8996 7111 Fax: +44 (0)20 8996 7048 Email: info@bsi-global.com Subscribing members of BSI are kept up to date with standards developments and receive substantial discounts on the purchase price of standards For details of these and other benefits contact Membership Administration Tel: +44 (0)20 8996 7002 Fax: +44 (0)20 8996 7001 Email: membership@bsi-global.com Information regarding online access to British Standards via British Standards Online can be found at http://www.bsi-global.com/bsonline Further information about BSI is available on the BSI website at http://www.bsi-global.com Copyright Copyright subsists in all BSI publications BSI also holds the copyright, in the UK, of the publications of the international standardization bodies Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means – electronic, photocopying, recording or otherwise – without prior written permission from BSI BSI 389 Chiswick High Road London W4 4AL This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols, and size, type or grade designations If these details are to be used for any other purpose than implementation then the prior written permission of BSI must be obtained Details and advice can be obtained from the Copyright & Licensing Manager Tel: +44 (0)20 8996 7070 Fax: +44 (0)20 8996 7553 Email: copyright@bsi-global.com