SIST EN 1859:2009
(Main)Chimneys - Metal chimneys - Test methods
Chimneys - Metal chimneys - Test methods
This European Standard describes test methods for metal chimney products.
Abgasanlagen - Metall-Abgasanlagen - Prüfverfahren
Diese Europäische Norm beschreibt Prüfverfahren für Bauteile für Metall-Abgasanlagen.
Conduits de fumèe - Conduits de fumèe mètalliques - Mèthodes d'essais
La présente Norme européenne spécifie les méthodes d’essai des composants de conduits de fumée métalliques.
Dimniki - Kovinski dimniki - Preskusne metode
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dimniki - Kovinski dimniki - Preskusne metodeAbgasanlagen - Metall-Abgasanlagen - PrüfverfahrenConduits de fumèe - Conduits de fumèe mètalliques - Mèthodes d'essaisChimneys - Metal chimneys - Test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:EN 1859:2009SIST EN 1859:2009en,fr,de01-oktober-2009SIST EN 1859:2009SLOVENSKI
STANDARDSIST EN 1859:2001/A1:2006SIST EN 1859:20011DGRPHãþD
SIST EN 1859:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 1859May 2009ICS 91.060.40Supersedes EN 1859:2000
English VersionChimneys - Metal chimneys - Test methodsConduits de fumèe - Conduits de fumèe mètalliques -Mèthodes d'essaisAbgasanlagen - Metall-Abgasanlagen - PrüfverfahrenThis European Standard was approved by CEN on 1 May 2009.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:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 1859:2009: ESIST EN 1859:2009
EN 1859:2009 (E) 2 Contents Page Foreword .4 1 Scope .5 2 Normative references .5 3 Definitions .5 4 Test methods for metal chimney products .5 4.1 Compressive strength .5 4.1.1 Sections and Fittings .5 4.1.2 Chimney support .6 4.2 Tensile strength .6 4.2.1 Test assembly .6 4.2.2 Test procedure and results .6 4.3 Lateral strength .6 4.3.1 Fittings in non-vertical orientation .6 4.3.2 Wind load .7 4.4 Gas tightness .7 4.4.1 Test assembly .7 4.4.2 Procedure and results .7 4.5 Thermal performance test .7 4.5.1 Apparatus .7 4.5.2 Test environment and conditioning . 10 4.5.3 Test procedure . 10 4.5.4 Results . 12 4.6 Thermal resistance . 13 4.6.1 Test assembly . 13 4.6.2 Test procedure . 13 4.6.3 Results . 14 4.7 Water vapour diffusion resistance . 14 4.7.1 Conditioning . 14 4.7.2 Test assembly . 14 4.7.3 Test procedure . 14 4.7.4 Results . 15 4.8 Condensate resistance test . 15 4.8.1 Test apparatus . 15 4.8.2 Test sample . 15 4.8.3 Measuring parameters . 15 4.8.4 Test procedure . 15 4.8.5 Test results . 15 4.9 Rainwater resistance . 15 4.9.1 Chimney sections . 15 4.9.2 Rainwater terminal . 16 4.10 Terminal flow resistance . 17 4.10.1 Conditioning . 17 4.10.2 Test assembly . 17 4.10.3 Procedure . 17 4.10.4 Results . 17 4.11 Aerodynamic behaviour of terminal under wind conditions . 17 4.11.1 Conditioning . 17 4.11.2 Test assembly . 18 4.11.3 Procedure . 18 4.11.4 Results . 18 SIST EN 1859:2009
EN 1859:2009 (E) 3 4.12 Flow resistance of fittings . 18 4.12.1 Determination of flow conditions . 18 4.12.2 Test assembly . 19 4.12.3 Execution of the measurements . 19 4.12.4 Calculation of the friction value . 19 5 Test report . 20 Annex A (normative)
Method for measuring ambient temperature . 34 Annex B (normative)
Method for hot gas temperature measurements . 35 Annex C (informative)
Method for metal surface temperature measurements . 36 Annex D (normative)
Method for combustible wood surface temperature measurements . 37 Annex E (normative)
Locations of thermocouples for surface temperature measurements . 38 E.1 Test structure, surface temperatures . 38 E.2 Test chimney, surface temperatures . 38 E.2.1 General . 38 E.2.2 Test chimney, freestanding . 38 E.2.3 Test chimney, corner installation . 38 E.2.4 Test chimney, corner installation, enclosed. 38 Annex F (normative)
Simplified calculation of thermal resistance for circular flues . 41 Annex G (informative)
Method for applying an evenly distributed load (horizontal) . 43 Annex H (informative)
Possible test sequence . 44 Annex I (informative)
Techniques for flue gas volume flow measurements . 45 Bibliography . 46
SIST EN 1859:2009
EN 1859:2009 (E) 4 Foreword This document (EN 1859:2009) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by UNI. 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 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. This document will supersede EN 1859:2000 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 the United Kingdom. SIST EN 1859:2009
EN 1859:2009 (E) 5 1 Scope This European Standard describes test methods for metal chimney products.
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 1443:2003, Chimneys - General requirements EN 1856-1:2009, Chimneys - Requirements for metal chimneys - Part 1: System chimney products EN 60068-2-59, Environmental testing - Part 2 - Test methods - Test Fe: Vibration, Sine beat method (IEC 60068-2-59:1990) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) ISO 3966, Measurement of fluid flow in closed conduits. Velocity area method using Pitot static tubes 3 Definitions For the purposes of this standard, the definitions given in EN 1443:2003 and EN 1856-1:2009 apply. 4 Test methods for metal chimney products 4.1 Compressive strength 4.1.1 Sections and Fittings 4.1.1.1 Test assembly Assemble the fitting according to the manufacturer's installation instructions between two adaptors including one chimney section (see Figure 1a). The adaptors shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the test components as it is done in the installation. The test load shall be transferred to the test components by means of a pivoted plate. 4.1.1.2 Procedure and results Increase the test load on the components without shock up to 4 times the design load where the flue liner is load bearing or 3 times the design load where the flue liner is non load bearing. The load shall be measured to an accuracy of 2 % of the design load. Record the result. Where the design load is unknown, increase the test load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the fitting cannot sustain a further increase in load. Use the minimum value from three failure loads to determine the design load. SIST EN 1859:2009
EN 1859:2009 (E) 6 4.1.2 Chimney support 4.1.2.1 Test assembly Install the chimney support according to the manufacturer's installation instructions. Apply the test load to the chimney support through a chimney section and an adaptor (see Figure 1b). The adaptor shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the chimney sections. The test load shall be transferred to the test component by means of a pivoted plate. 4.1.2.2 Procedure and results Increase the test load up to the design load without shock. Record the maximum displacement of the chimney. Measure the displacement to an accuracy of 0,1 mm. Further increase the load up to 3 times the design load. Record the results. Measure the load to an accuracy of 2 % of the design load.
Where the design load is unknown, increase the load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the support cannot sustain a further increase in load. Record the displacement during the load increase. Use the minimum value from three failure loads to determine the design load. 4.2 Tensile strength 4.2.1 Test assembly Install the chimney sections according to the manufacturer's installation instructions. Apply the test load through an adaptor (see Figure 1c). The adaptor shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the chimney sections. 4.2.2 Test procedure and results Increase the test load on the components without shock up to 1,5 times the design load. The load shall be measured to an accuracy of 2 % of the design load. Record the result. Where the design load is unknown, increase the test load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the fitting cannot sustain a further increase in load. Use the minimum value from three failure loads to determine the design load. 4.3 Lateral strength 4.3.1 Fittings in non-vertical orientation 4.3.1.1 Test assembly Install the chimney fittings and supports at the maximum angle from vertical according to the manufacturer's installation instructions using additional vertical supports to install the sections without deflection (see Figure 2). SIST EN 1859:2009
EN 1859:2009 (E) 7 4.3.1.2 Procedure and results Remove the additional vertical supports. Record the maximum deflection to an accuracy of 0,1 mm. 4.3.2 Wind load 4.3.2.1 Test assembly Install the chimney components according to the manufacturer's installation instructions. Use the test assembly consisting of the manufacturer's declared freestanding components and further chimney sections up to the manufacturer's maximum declared lateral support separation distance between the supports, and once again the same distance up to an anchor point (see Figure 3). 4.3.2.2 Procedure and results Apply an evenly distributed test load increased uniformly up to 1,5 kN/m2 ± 2,5 %. NOTE A method for applying an evenly distributed load is described in informative Annex G. Other methods using a vertical assembly may also be used. Apply the test load to those components declared by the manufacturer for external use, except 50 % of the last laterally supported section of the test assembly. Apply the test load by a number of individual evenly distributed loads equally spaced from the freestanding end at not more than (0,2 ± 0,01) m intervals. The individual loads shall not vary by more than 1 %. Record the results. 4.4 Gas tightness 4.4.1 Test assembly Construct the test assembly as described in 4.5. Seal the test assembly chimney flue outlet with an air tight seal. Use adaptors supplied by the manufacturer in order to ensure that the chimney inlet and outlet are closed in a typical manner. Connect a positive pressure air supply and flow meter to the test chimney flue inlet with appropriate air tight seals. Connect a manometer to the flue of the test assembly (see Figure 4). 4.4.2 Procedure and results The test shall be carried out at ambient temperature. Deliver air from the air supply to the flue at a rate necessary to achieve and maintain the required test pressure given in Table 1 of EN 1856-1:2009. Measure the test pressure and the air flow rate, both to an accuracy of ± 5,0 %. Record the air flow rate. 4.5 Thermal performance test 4.5.1 Apparatus The test assembly shall comprise a test structure (see 4.5.1.2), a test chimney (see 4.5.1.3), a hot gas connecting pipe (see 4.5.1.4), and measuring equipment (see 4.5.1.5). SIST EN 1859:2009
EN 1859:2009 (E) 8 4.5.1.1 Test assembly Construct an open room outlet test assembly consisting of the test chimney in the test structure.
The chimney shall be tested according to Figure 5. NOTE Figure 6 shows the arrangement for testing off-sets. 4.5.1.2 Test structure 4.5.1.2.1 General Construct a test structure consisting of two walls at right angles and two floors through which the test chimney passes, of construction as described in 4.5.1.2.2 and 4.5.1.2.3 or of equivalent thermal characteristics and dimensions. The floor opening and wall position shall enable the test chimney to be erected so that all parts of the test structure are at the manufacturer's specified clearance X mm from the chimney. The area below the first floor referenced as Zone A, the area between the first floor and second floor as Zone B, and the area above the second floor as Zone C, as shown in Figure 5. The wall/floor interface shall be fitted with nominally 20 mm x 100 mm skirting board. The vertical distance between the floor and ceiling in Zone B shall be (2 400 ± 25) mm. The height of the chimney protruding into Zone C shall not be less than 900 mm. Timbers shall have a dimensional tolerance of ± 1 mm. 4.5.1.2.2 Walls Construct walls consisting of nominal dimension 38 mm x 89 mm thick timbers in a framework (see Figure 5) faced on each side with one layer of nominally 12 mm thick plywood to give a total thickness of 113 mm ± 1 mm, insulated in the voids with mineral fibre insulant having a thermal conductivity of 0,035 W/m K ± 0,002 W/m K at 20 °C with a minimum density of 70 kg/m3. The walls shall extend at least 1 200 mm. 4.5.1.2.3 Floors Construct flooring framework of nominal dimension 50 mm x 200 mm timbers at the first floor level and nominal dimension 50 mm x 100 mm timbers at the second floor level forming an opening that enables the test chimney to be erected so that all parts of the test structure comply with the manufacturer's declared minimum distance to combustible material from the chimney fittings (see Figure 5) and covered with one thickness of nominal dimension 20 mm boarding for the floors and one thickness of nominal dimension 12 mm plywood for the ceilings, except for the second floor ceiling (exposed top), and the spaces between the timbers filled with 100 mm thick mineral wool slab with a thermal conductivity of 0,035 W/m K ± 0,002 W/m K at 20 °C, with a minimum density of 70 kg/m3. 4.5.1.3 Test chimney Construct the test chimney using the components materials and construction representing the manufacturer's product range, including a termination, and, at least 7 joints. Assemble the chimney in accordance with the manufacturer's installation instructions, including firestops or firestops and spacers to a height of not less than 4,5 m, including base support components, if used. Construct the test chimney according to Figure 5 for all sections, T pieces and inspection openings. Where a manufacturer’s product range includes bends, the test chimney shall include one offset (see Figure 6), with an offset angle of maximum 45° and an offset distance of 0.75 m ± 0.25 m. Any inspection opening shall be in Zone C
Include any finishing (e.g. non-combustible enclosures or claddings) specified in the manufacturer's instructions. SIST EN 1859:2009
EN 1859:2009 (E) 9 4.5.1.4 Hot gas connecting pipe Construct a purpose-made insulated straight flue pipe having an internal diameter equal to that of the flue of the test chimney of a length of approximately seven diameters (7D) measured from the centre line of the flue gas generator to the entry to the test chimney, insulated to provide a thermal resistance value of not less than that equivalent to 50 mm thickness of material having a thermal conductivity of 0,125 W/m K ± 0,005 W/m K at 750°C. NOTE This item should be supplied by the chimney manufacturer. 4.5.1.5 Measuring equipment and its location 4.5.1.5.1 Ambient temperature Measure ambient air temperature with an accuracy of ± 1,5°C, in Zone A at a position 300 mm ± 5 mm below the ceiling and in all other zones 300 mm ± 5 mm above the floor. When testing a non-enclosed chimney, place additional ambient measuring points at levels corresponding to the outer surface temperature measurements. The method is described in normative Annex A. 4.5.1.5.2 Hot gas temperature Measure the hot gas temperature with an accuracy of ± 3 °C for hot gas temperatures less than or equal to 600 °C and ± 0,75 % for hot gas temperatures greater than 600 °C at a position 50 mm ± 2 mm before the inlet to the test chimney and at a point in the cross section coincident with the highest temperature position. The method is described in normative Annex B. 4.5.1.5.3 Metal surface temperature Measure the surface temperature of metal components with an accuracy of ± 1,5 °C. A method is described in informative Annex C. 4.5.1.5.4 Combustible/wood surface temperature Measure the surface temperature of the adjacent wood/combustible parts of the test structure with an accuracy of ± 1,5 °C. The method is described in normative Annex D. 4.5.1.5.5 Locations for surface temperature measurements Establish the maximum temperature of the surfaces of the test structure and the test chimney during the thermal cycle appropriate to the designation. Locations for thermocouples are described in normative Annex E. 4.5.1.5.6 Chimney draught measurement Measure the draught in the chimney with an accuracy of ± 2 %,
through a 150 mm ± 2 mm length of stainless steel tubing, internal diameter
3mm10mmmm+ inserted through the flue pipe and flush with the flue surface and sealed by brazing, at a distance of 100 mm ± 2 mm from the entry to the test chimney. SIST EN 1859:2009
EN 1859:2009 (E) 10 4.5.1.5.7 Hot gas volume flow Measure the flue gas volume to an accuracy of + 10 %, - 5 %. Informative Annex I gives acceptable techniques. 4.5.2 Test environment and conditioning 4.5.2.1 Test room The test room shall consist of a ventilated space not subject to draughts greater than 0,5 m/s measured at the ambient thermocouple positions (see 4.5.1.5). This requirement is deemed fulfilled in a closed test room. Ambient temperature within the test building shall be maintained within the limit of 15 °C to 30 °C, measured at the designated ambient temperature positions (see 4.5.1.5). The humidity shall be controlled between 30 % - 70 % RH. Ambient air shall be able to circulate freely between all parts of the test room. The distance between the test assembly and other structures (e.g. test room walls) shall be at least 1,0 m. 4.5.2.2 Vibration conditioning Vibration conditioning shall be undertaken using vibration equipment and measuring techniques complying with EN 60068-2-59. 4.5.2.2.1 Procedure Place each fitting intended for inclusion in the thermal test onto the vibrating table in its vertical orientation. Subject each fitting to a sinusoidal excitation at an acceleration equal to 9,81 m/sec2, with a frequency of 10 Hz and an amplitude of 2,5 mm for 45 min. 4.5.2.3 Drying/conditioning phase Incorporate a drying phase into the thermal cycle if required by the manufacturer's instructions. Blow hot gases into the chimney in such a way that the hot gas temperature (see 4.5.1.5.2) rises to the nominated test temperature in 60 min ± 5 min, unless otherwise required. 4.5.3 Test procedure Install the chimney components which have been subjected to the vibration conditioning criteria of 4.5.2.2 in the test assembly which is appropriate to the manufacturer's declared product designation. Encase a chimney designated for internal use and with combustible enclosure in Zone B on the remaining two sides with 12 mm nominal dimension plywood and positioned on the basis of the manufacturer's specified clearance to the enclosure and walls, measured between the outer surface of the chimney sections and the interior surface of the enclosing materials. Such clearance is referenced by the dimension xx (see Figures 5 and 6). Close the floor penetrations at each ceiling and floor level with a firestop or firestop and spacer arrangement supplied by the manufacturer.
Seal only joints and openings between spacers or supports and the test structure and all joints in the enclosure casing. Install a chimney designated for use without an enclosure into the test structure, without enclosing the test chimney and without closing the floor penetrations (see Figure 7). SIST EN 1859:2009
EN 1859:2009 (E) 11 For a chimney designated for internal use and with non combustible enclosure, the sides of the enclosure shall be closed to the walls of the test assembly unless otherwise specified by the manufacturer, (see Figure 8). Install the floor penetration assembly supplied by the manufacturer. Maintain the test environment. Generate hot gas with the velocity flow and test temperature specified in Table 1 appropriate to the product designation and diameter. Adjust the hot gas flow pattern so that the overall temperature distribution factor (OTDF) for the hot gas is not g
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Dimniki - Kovinski dimniki - Preskusne metodeAbgasanlagen - Metall-Abgasanlagen - PrüfverfahrenConduits de fumèe - Conduits de fumèe mètalliques - Mèthodes d'essaisChimneys - Metal chimneys - Test methods91.060.40Dimniki, jaški, kanaliChimneys, shafts, ductsICS:Ta slovenski standard je istoveten z:prEN 1859kSIST prEN 1859:2009en,fr,de01-marec-2009kSIST prEN 1859:2009SLOVENSKI
STANDARD
kSIST prEN 1859:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMFINAL DRAFTprEN 1859October 2008ICS 91.060.40Will supersede EN 1859:2000
English VersionChimneys - Metal chimneys - Test methodsConduits de fumèe - Conduits de fumèe mètalliques -Mèthodes d'essaisAbgasanlagen - Metall-Abgasanlagen - PrüfverfahrenThis draft European Standard is submitted to CEN members for second unique acceptance procedure. It has been drawn up by theTechnical Committee CEN/TC 166.If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations whichstipulate the conditions for giving this European Standard the status of a national standard without any alteration.This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other languagemade by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has thesame status as the official 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.Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice andshall not be referred to as a European Standard.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2008 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. prEN 1859:2008: EkSIST prEN 1859:2009
prEN 1859:2008 (E) 2 Contents Page Foreword.4 1 Scope.5 2 Normative references.5 3 Definitions.5 4 Test methods for metal chimney products.5 4.1 Compressive strength.5 4.1.1 Sections and Fittings.5 4.1.2 Chimney support.6 4.2 Tensile strength.6 4.2.1 Test assembly.6 4.2.2 Test procedure and results.6 4.3 Lateral strength.6 4.3.1 Fittings in non-vertical orientation.6 4.3.2 Wind load.7 4.4 Gas tightness.7 4.4.1 Test assembly.7 4.4.2 Procedure and results.7 4.5 Thermal performance test.7 4.5.1 Apparatus.7 4.5.2 Test environment and conditioning.10 4.5.3 Test procedure.10 4.5.4 Results.12 4.6 Thermal resistance.13 4.6.1 Test assembly.13 4.6.2 Test procedure.13 4.6.3 Results.14 4.7 Water vapour diffusion resistance.14 4.7.1 Conditioning.14 4.7.2 Test assembly.14 4.7.3 Test procedure.14 4.7.4 Results.15 4.8 Condensate resistance test.15 4.8.1 Test apparatus.15 4.8.2 Test sample.15 4.8.3 Measuring parameters.15 4.8.4 Test procedure.15 4.8.5 Test results.15 4.9 Rainwater resistance.15 4.9.1 Chimney sections.15 4.9.2 Rainwater terminal.16 4.10 Terminal flow resistance.17 4.10.1 Conditioning.17 4.10.2 Test assembly.17 4.10.3 Procedure.17 4.10.4 Results.17 4.11 Aerodynamic behaviour of terminal under wind conditions.17 4.11.1 Conditioning.17 4.11.2 Test assembly.18 4.11.3 Procedure.18 4.11.4 Results.18 kSIST prEN 1859:2009
prEN 1859:2008 (E) 3 4.12 Flow resistance of fittings.18 4.12.1 Determination of flow conditions.18 4.12.2 Test assembly.19 4.12.3 Execution of the measurements.19 4.12.4 Calculation of the friction value.19 5 Test report.20 Annex A (normative)
Method for measuring ambient temperature.35 Annex B (normative)
Method for hot gas temperature measurements.36 Annex C (informative)
Method for metal surface temperature measurements.37 Annex D (normative)
Method for combustible wood surface temperature measurements.38 Annex E (normative)
Locations of thermocouples for surface temperature measurements.39 E.1 Test structure, surface temperatures.39 E.2 Test chimney, surface temperatures.39 E.2.1 General.39 E.2.2 Test chimney, freestanding.39 E.2.3 Test chimney, corner installation.39 E.2.4 Test chimney, corner installation, enclosed.39 Annex F (normative)
Simplified calculation of thermal resistance for circular flues.43 Annex G (informative)
Method for applying an evenly distributed load (horizontal).46 Annex H (informative)
Possible test sequence.47 Annex I (informative)
Techniques for flue gas volume flow measurements.48 Bibliography.49
kSIST prEN 1859:2009
prEN 1859:2008 (E) 4 Foreword This document (prEN 1859:2008) has been prepared by Technical Committee CEN/TC 166 “Chimneys”, the secretariat of which is held by UNI. This document is currently submitted to the second Unique Acceptance Procedure. This document will supersede EN 1859:2000 kSIST prEN 1859:2009
prEN 1859:2008 (E) 5 1 Scope This European Standard describes test methods for metal chimney products.
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 1443:2003, Chimneys - General requirements EN 1856-1:2003, Chimneys - Requirements for metal chimneys - Part 1: System chimney products EN 60068-2-59, Environmental testing - Part 2 - Test methods - Test Fe: Vibration, Sine beat method (IEC 60068-2-59:1990) EN 60529, Degrees of protection provided by enclosures (IP Code) (IEC 60529:1989) ISO 3966, Measurement of fluid flow in closed conduits. Velocity area method using Pitot static tubes 3 Definitions For the purposes of this standard, the definitions given in EN 1443:2003 and EN 1856-1:2003 apply. 4 Test methods for metal chimney products 4.1 Compressive strength 4.1.1 Sections and Fittings 4.1.1.1 Test assembly Assemble the fitting according to the manufacturer's installation instructions between two adaptors including one chimney section (see Figure 1a). The adaptors shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the test components as it is done in the installation. The test load shall be transferred to the test components by means of a pivoted plate. 4.1.1.2 Procedure and results Increase the test load on the components without shock up to 4 times the design load where the flue liner is load bearing or 3 times the design load where the flue liner is non load bearing. The load shall be measured to an accuracy of 2 % of the design load. Record the result. Where the design load is unknown, increase the test load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the fitting cannot sustain a further increase in load. Use the minimum value from three failure loads to determine the design load. kSIST prEN 1859:2009
prEN 1859:2008 (E) 6 4.1.2 Chimney support 4.1.2.1 Test assembly Install the chimney support according to the manufacturer's installation instructions. Apply the test load to the chimney support through a chimney section and an adaptor (see Figure 1b). The adaptor shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the chimney sections. The test load shall be transferred to the test component by means of a pivoted plate. 4.1.2.2 Procedure and results Increase the test load up to the design load without shock. Record the maximum displacement of the chimney. Measure the displacement to an accuracy of 0,1 mm. Further increase the load up to 3 times the design load. Record the results. Measure the load to an accuracy of 2 % of the design load.
Where the design load is unknown, increase the load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the support cannot sustain a further increase in load. Record the displacement during the load increase. Use the minimum value from three failure loads to determine the design load. 4.2 Tensile strength 4.2.1 Test assembly Install the chimney sections according to the manufacturer's installation instructions. Apply the test load through an adaptor (see Figure 1c). The adaptor shall be supplied by the chimney manufacturer and shall transfer the test load in the usual way to the load bearing wall of the chimney sections. 4.2.2 Test procedure and results Increase the test load on the components without shock up to 1,5 times the design load. The load shall be measured to an accuracy of 2 % of the design load. Record the result. Where the design load is unknown, increase the test load uniformly and record the results to allow the point of failure to be detected. Failure is deemed to have occurred when the fitting cannot sustain a further increase in load. Use the minimum value from three failure loads to determine the design load. 4.3 Lateral strength 4.3.1 Fittings in non-vertical orientation 4.3.1.1 Test assembly Install the chimney fittings and supports at the maximum angle from vertical according to the manufacturer's installation instructions using additional vertical supports to install the sections without deflection (see Figure 2). kSIST prEN 1859:2009
prEN 1859:2008 (E) 7 4.3.1.2 Procedure and results Remove the additional vertical supports. Record the maximum deflection to an accuracy of 0,1 mm. 4.3.2 Wind load 4.3.2.1 Test assembly Install the chimney components according to the manufacturer's installation instructions. Use the test assembly consisting of the manufacturer's declared freestanding components and further chimney sections up to the manufacturer's maximum declared lateral support separation distance between the supports, and once again the same distance up to an anchor point (see Figure 3). 4.3.2.2 Procedure and results Apply an evenly distributed test load increased uniformly up to 1,5 kN/m2 ± 2,5 %. NOTE A method for applying an evenly distributed load is described in informative Annex G. Other methods using a vertical assembly may also be used. Apply the test load to those components declared by the manufacturer for external use, except 50 % of the last laterally supported section of the test assembly. Apply the test load by a number of individual evenly distributed loads equally spaced from the freestanding end at not more than (0,2 ± 0,01) m intervals. The individual loads shall not vary by more than 1 %. Record the results. 4.4 Gas tightness 4.4.1 Test assembly Construct the test assembly as described in 4.5. Seal the test assembly chimney flue outlet with an air tight seal. Use adaptors supplied by the manufacturer in order to ensure that the chimney inlet and outlet are closed in a typical manner. Connect a positive pressure air supply and flow meter to the test chimney flue inlet with appropriate air tight seals. Connect a manometer to the flue of the test assembly (see Figure 4). 4.4.2 Procedure and results The test shall be carried out at ambient temperature. Deliver air from the air supply to the flue at a rate necessary to achieve and maintain the required test pressure given in Table 1 of EN 1856-1:2003. Measure the test pressure and the air flow rate, both to an accuracy of ± 5,0 %. Record the air flow rate. 4.5 Thermal performance test 4.5.1 Apparatus The test assembly shall comprise a test structure (see 4.5.1.2), a test chimney (see 4.5.1.3), a hot gas connecting pipe (see 4.5.1.4), and measuring equipment (see 4.5.1.5). kSIST prEN 1859:2009
prEN 1859:2008 (E) 8 4.5.1.1 Test assembly Construct an open room outlet test assembly consisting of the test chimney in the test structure.
The chimney shall be tested according to Figure 5. NOTE Figure 6 shows the arrangement for testing off-sets. 4.5.1.2 Test structure 4.5.1.2.1 General Construct a test structure consisting of two walls at right angles and two floors through which the test chimney passes, of construction as described in 4.5.1.2.2 and 4.5.1.2.3 or of equivalent thermal characteristics and dimensions. The floor opening and wall position shall enable the test chimney to be erected so that all parts of the test structure are at the manufacturer's specified clearance X mm from the chimney. The area below the first floor referenced as Zone A, the area between the first floor and second floor as Zone B, and the area above the second floor as Zone C, as shown in Figure 5. The wall/floor interface shall be fitted with nominally 20 mm x 100 mm skirting board. The vertical distance between the floor and ceiling in Zone B shall be (2 400 ± 25) mm. The height of the chimney protruding into Zone C shall not be less than 900 mm. Timbers shall have a dimensional tolerance of ± 1 mm. 4.5.1.2.2 Walls Construct walls consisting of nominal dimension 38 mm x 89 mm thick timbers in a framework (see Figure 5) faced on each side with one layer of nominally 12 mm thick plywood to give a total thickness of 113 mm ± 1 mm, insulated in the voids with mineral fibre insulant having a thermal conductivity of 0,035 W/m K ± 0,002 W/m K at 20 °C with a minimum density of 70 kg/m3. The walls shall extend at least 1 200 mm. 4.5.1.2.3 Floors Construct flooring framework of nominal dimension 50 mm x 200 mm timbers at the first floor level and nominal dimension 50 mm x 100 mm timbers at the second floor level forming an opening that enables the test chimney to be erected so that all parts of the test structure comply with the manufacturer's declared minimum distance to combustible material from the chimney fittings (see Figure 5) and covered with one thickness of nominal dimension 20 mm boarding for the floors and one thickness of nominal dimension 12 mm plywood for the ceilings, except for the second floor ceiling (exposed top), and the spaces between the timbers filled with 100 mm thick mineral wool slab with a thermal conductivity of 0,035 W/m K ± 0,002 W/m K at 20 °C, with a minimum density of 70 kg/m3. 4.5.1.3 Test chimney Construct the test chimney using the components materials and construction representing the manufacturer's product range, including a termination, and, at least 7 joints. Assemble the chimney in accordance with the manufacturer's installation instructions, including firestops or firestops and spacers to a height of not less than 4,5 m, including base support components, if used. Construct the test chimney according to Figure 5 for all sections, T pieces and inspection openings. Where a manufacturer’s product range includes bends, the test chimney shall include one offset (see Figure 6), with an offset angle of maximum 45° and an offset distance of 0.75m ± 0.25m. Any inspection opening shall be in Zone C
Include any finishing (e.g. non-combustible enclosures or claddings) specified in the manufacturer's instructions. kSIST prEN 1859:2009
prEN 1859:2008 (E) 9 4.5.1.4 Hot gas connecting pipe Construct a purpose-made insulated straight flue pipe having an internal diameter equal to that of the flue of the test chimney of a length of approximately seven diameters (7D) measured from the centre line of the flue gas generator to the entry to the test chimney, insulated to provide a thermal resistance value of not less than that equivalent to 50 mm thickness of material having a thermal conductivity of 0,125 W/m K ± 0,005 W/m K at 750°C. NOTE This item should be supplied by the chimney manufacturer. 4.5.1.5 Measuring equipment and its location 4.5.1.5.1 Ambient temperature Measure ambient air temperature with an accuracy of ± 1,5°C, in Zone A at a position 300 mm ± 5 mm below the ceiling and in all other zones 300 mm ± 5 mm above the floor. When testing a non-enclosed chimney, place additional ambient measuring points at levels corresponding to the outer surface temperature measurements. The method is described in normative Annex A. 4.5.1.5.2 Hot gas temperature Measure the hot gas temperature with an accuracy of ± 3 °C for hot gas temperatures less than or equal to 600 °C and ± 0,75 % for hot gas temperatures greater than 600 °C at a position 50 mm ± 2 mm before the inlet to the test chimney and at a point in the cross section coincident with the highest temperature position. The method is described in normative Annex B. 4.5.1.5.3 Metal surface temperature Measure the surface temperature of metal components with an accuracy of ± 1,5 °C. A method is described in informative Annex C. 4.5.1.5.4 Combustible/wood surface temperature Measure the surface temperature of the adjacent wood/combustible parts of the test structure with an accuracy of ± 1,5 °C. The method is described in normative Annex D. 4.5.1.5.5 Locations for surface temperature measurements Establish the maximum temperature of the surfaces of the test structure and the test chimney during the thermal cycle appropriate to the designation. Locations for thermocouples are described in normative Annex E. 4.5.1.5.6 Chimney draught measurement Measure the draught in the chimney with an accuracy of ± 2 %,
through a 150 mm ± 2 mm length of stainless steel tubing, internal diameter 3mm10mmmm+− inserted through the flue pipe and flush with the flue surface and sealed by brazing, at a distance of 100 mm ± 2 mm from the entry to the test chimney. kSIST prEN 1859:2009
prEN 1859:2008 (E) 10 4.5.1.5.7 Hot gas volume flow Measure the flue gas volume to an accuracy of + 10 %, - 5 %. Informative Annex I gives acceptable techniques. 4.5.2 Test environment and conditioning 4.5.2.1 Test room The test room shall consist of a ventilated space not subject to draughts greater than 0,5 m/s measured at the ambient thermocouple positions (see 4.5.1.5). This requirement is deemed fulfilled in a closed test room. Ambient temperature within the test building shall be maintained within the limit of 15 °C to 30 °C, measured at the designated ambient temperature positions (see 4.5.1.5). The humidity shall be controlled between 30 % - 70 % RH. Ambient air shall be able to circulate freely between all parts of the test room. The distance between the test assembly and other structures (e.g. test room walls) shall be at least 1,0 m. 4.5.2.2 Vibration conditioning Vibration conditioning shall be undertaken using vibration equipment and measuring techniques complying with EN 60068-2-59. 4.5.2.2.1 Procedure Place each fitting intended for inclusion in the thermal test onto the vibrating table in its vertical orientation. Subject each fitting to a sinusoidal excitation at an acceleration equal to 9,81 m/sec2, with a frequency of 10 Hz and an amplitude of 2,5 mm for 45 min. 4.5.2.3 Drying/conditioning phase Incorporate a drying phase into the thermal cycle if required by the manufacturer's instructions. Blow hot gases into the chimney in such a way that the hot gas temperature (see 4.5.1.5.2) rises to the nominated test temperature in 60 min ± 5 min, unless otherwise required. 4.5.3 Test procedure Install the chimney components which have been subjected to the vibration conditioning criteria of 4.5.2.2 in the test assembly which is appropriate to the manufacturer's declared product designation. Encase a chimney designated for internal use and with combustible enclosure in Zone B on the remaining two sides with 12 mm nominal dimension plywood and positioned on the basis of the manufacturer's specified clearance to the enclosure and walls, measured between the outer surface of the chimney sections and the interior surface of the enclosing materials. Such clearance is referenced by the dimension xx (see Figures 5 and 6). Close the floor penetrations at each ceiling and floor level with a firestop or firestop and spacer arrangement supplied by the manufacturer.
Seal only joints and openings between spacers or supports and the test structure and all joints in the enclosure casing. Install a chimney designated for use without an enclosure into the test structure, without enclosing the test chimney and without closing the floor penetrations (see Figure 7). kSIST prEN 1859:2009
prEN 1859:2008 (E) 11 For a chimney designated for internal use and with non combustible enclosure, the sides of the enclosure shall be closed to the walls of the test assembly unless otherwise specified by the manufacturer, (see Figure 8). Install the floor penetration assembly supplied by the manufacturer. Maintain the test environment. Generate hot gas with the velocity flow and test temperature specified in Table 1 appropriate to the product designation and diameter. Adjust the hot gas flow pattern so that the overall temperature distribution factor (OTDF) for the hot gas is not greater than 1,05. Where re temperatugashot mean re temperatugashot peak =OTDF (1)
Ensure that the hot gas CO/CO2 ratio does not exceed 0,01. Maintain the ambient temperature of the test room so that it does not vary by more than 5 °C for the duration of the test. 4.5.3.1 Heat stress test Generate hot gas with the volume flow at 10+0% of the value and the test temperature at 50+% of the values specified in Table 1 appropriate to the product designation and diameter. Regulate the rate of rise of the hot gas temperature to achieve the specified gas temperature (Tt) in time T = (Tt x 60/50) s ± 30 s. Maintain the flue gas temperature at the specified test temperature at 50+% until equilibrium is achieved. Equilibrium is
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