Chimneys - Clay/ceramic outer walls for system chimneys - Requirements and test methods

This European standard specifies the performance requirements for factory-made clay/ceramic chimney outer wall elements used to form the outer walls of chimneys and which are used in combination with flue liners in site. It applies to clay/ceramic chimney outer wall elements with solid walls or walls with vertical perforations (see Figure 1) which have square, rectangular or circular passages. Testing, making and inspection requirements are covered by this standard.

Abgasanlagen - Keramik-Außenschalen für Systemabgasanlagen - Anforderungen und Prüfungen

Diese Europäische Norm legt die Leistungsanforderungen für werkmäßig hergestellte Keramik-Außenschalen für Abgasanlagen fest, welche zur Ableitung von Verbrennungsprodukten von Feuerstätten an die Außenluft bei Unter- oder Überdruck verwendet werden. Diese Norm gilt für Keramik-Außenschalen mit massiven oder vertikal gelochten Wandungen (siehe Bild 1), die quadratische, rechteckige oder kreisförmige Öffnungen aufweisen. Sie enthält ferner Anforderungen an die Prüfung, Kennzeichnung und Überwachung.

Conduits de fumée - Enveloppes extérieures en terre cuite/céramique pour systèmes de conduits de fumée - Prescriptions et méthodes d'essai

La présente norme européenne spécifie les performances requises concernant les enveloppes extérieures des conduits de fumée en terre cuite/céramique fabriqués en usine, utilisées pour former les parois extérieures des conduits de fumée et qui sont utilisées conjointement aux conduits intérieurs sur site. Elle s'applique aux enveloppes extérieures de conduits de fumée en terre cuite/céramique munis de parois pleines ou de parois à alvéoles verticales (voir Figure 1) ayant des sections intérieures carrées, rectangulaires ou circulaires. La présente norme couvre les exigences relatives aux essais, au marquage et à l'inspection.

Dimniki – Keramični (zunanji) plašči za sistemske dimnike – Zahteve in preskusne metode

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Publication Date
19-Jul-2005
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EN 13069:2006
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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Chimneys - Clay/ceramic outer walls for system chimneys - Requirements and test methodsPHWRGHConduits de fumée - Enveloppes extérieures en terre cuite/céramique pour systemes de conduits de fumée - Prescriptions et méthodes d'essaiAbgasanlagen - Keramik-Außenschalen für Systemabgasanlagen - Anforderungen und PrüfungenTa slovenski standard je istoveten z:EN 13069:2005SIST EN 13069:2006en91.060.40ICS:SLOVENSKI

STANDARDSIST EN 13069:200601-januar-2006

EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13069July 2005ICS 91.060.40 English VersionChimneys - Clay/ceramic outer walls for system chimneys -Requirements and test methodsConduits de fumée - Enveloppes extérieures en terrecuite/céramique pour systèmes de conduits de fumée -Prescriptions et méthodes d'essaiAbgasanlagen - Keramik-Außenschalen für System-Abgasanlagen - Anforderungen und PrüfungenThis European Standard was approved by CEN on 27 October 2004.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, 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© 2005 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13069:2005: E

EN 13069:2005 (E) 2 Contents Page Foreword..........................................................................................................................................................3 1 Scope...................................................................................................................................................4 2 Normative references.........................................................................................................................4 3 Terms and definitions.........................................................................................................................5 4 Materials..............................................................................................................................................5 5 Tolerances on dimensions.................................................................................................................5 6 Compressive strength........................................................................................................................6 7 Flexural strength under wind loading...............................................................................................6 8 Thermal shock.....................................................................................................................................7 9 Resistance to fire................................................................................................................................7 10 Thermal resistance.............................................................................................................................8 11 Water absorption and bulk density....................................................................................................8 12 Resistance to freeze-thaw..................................................................................................................8 13 Evaluation of conformity....................................................................................................................8 14 Test methods.......................................................................................................................................9 15 Designation.......................................................................................................................................20 16 Marking, labelling and packaging....................................................................................................20 Annex A (normative)

Thermal resistance...................................................................................................21 Annex B (normative)

Sampling procedures for an AQL of 10 % and Inspection Level S2.....................27 Annex ZA (informative)

Clauses of this European Standard addressing the provisions of EU Construction Products Directives...................................................................................................31 Bibliography...................................................................................................................................................37

EN 13069:2005 (E) 3 Foreword This document (EN 13069:2005) 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 January 2006, and conflicting national standards shall be withdrawn at the latest by April 2007. 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 89/106/EEC. 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, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

EN 13069:2005 (E) 4

1 Scope This European Standard specifies the performance requirements for factory-made clay/ceramic chimney outer wall elements used to form the outer walls of chimneys and which are used in combination with flue liners in site. It applies to clay/ceramic chimney outer wall elements with solid walls or walls with vertical perforations (see Figure 1) which have square, rectangular or circular passages. Testing, making and inspection requirements are covered by this standard.

Figure 1 - Examples of clay/ceramic chimney outer wall elements with and without vertical perforations 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 312, Particleboards - Specifications. EN 1443:2003, Chimneys - General requirements. EN 14297: 2004, Chimneys – Freeze-thaw resistance test method for chimney products. EN ISO 7500-1, Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines -- Verification and calibration of the force-measuring system (ISO 7500-1:2004). ISO 2859-1, Sampling procedures for inspection by attributes - Part 1: Sampling schemes indexed by acceptable quality limit (AQL) for lot-by-lot inspection.

EN 13069:2005 (E) 5 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 1443:2003 and the following apply. 3.1 Nominal size numerical designation of size which is a convenient round number equal to or approximately equal to either:  the internal diameter in millimetres of the circular flue passage, or  the internal width in millimetres of blocks with square section flues, or  the internal width and breadth in millimetres of the internal transverse dimensions of outer walls with rectangular flueways 3.2 Nominal height numerical designation of the height in millimetres of a standard outer wall excluding any projecting spigot, which is a convenient round number. 4 Materials 4.1 Outer walls Clay/ceramic outer walls elements shall be manufactured from suitable clay/ceramic materials which, when fired, meet the performance requirements given in this standard. 5 Tolerances on dimensions 5.1 Internal transverse dimensions When tested in accordance with 14.1, the internal diameter of outer walls with circular flues measured on any diameter shall not deviate more than ± 3 % of the manufacturer's stated nominal internal diameter.

For outer walls with square and rectangular passages, the tolerances on the internal widths and breadths shall not deviate more than ± 3 % of the manufacturer's stated nominal internal dimension of the side. NOTE Corners of the passages may be rounded.

5.2 Height When tested in accordance with 14.2, the height of an outer wall shall not deviate more than ± 3 % of the manufacturer's stated nominal height subject to a maximum value of 10 mm. 5.3 Straightness When tested in accordance with 14.3, the permissible deviation from straightness of straight outer walls shall be ± 1 % of the test length. 5.4 Squareness of ends When tested in accordance with 14.4, the permissible deviation from square of the ends of straight clay/ceramic outer wall elements shall be not greater than an angle of slope 30 mm/m.

EN 13069:2005 (E) 6 5.5 Squareness of corners and flatness of walls When tested in accordance with 14.5, the permissible deviation from square of the corners and flatness of walls for square or rectangular shape straight clay/ceramic outer wall elements, shall be not greater than 5 % of the manufacturer's stated nominal internal width or breadth. 5.6 Joints The design and dimensions of the joints shall be as specified by the manufacturer to provide an adequate joint. 6 Compressive strength 6.1 Straight outer walls When tested in accordance with 14.6 and 14.7.3.2.2, straight outer walls shall withstand an intensity of loading of 10 MN/m². 6.2 Minimum load for outer wall elements with inspection opening sections When tested in accordance with 14.6, the minimum load shall be as given in Table 1. Table 1 — Minimum load

Height of chimney (m) Minimum load (kN) H ≤12,5 25 12,5 < H ≤ 25 50 25 < H ≤ 50 100

For chimneys with area greater than 0,04 m2 the following equation shall be used: F = χ . H . G/ 100 (1) F = minimum load (kN) χ = safety factor =

5 H = height of chimney (m) G = mass per metre (kg/m) 7 Flexural strength under wind loading Outer wall elements to this standard are not tested for stability under wind loading. The maximum free standing height of outer wall elements to this standard shall be 4,5 times the least lateral overall external dimension of the outer wall element from the last point of lateral support (see Figure 2). The manufacturer shall declare the smallest lateral dimension.

EN 13069:2005 (E) 7 12214,54,5 Key 1 Top of chimney excluding any terminal or chimney pot 2 Last point of support Figure 2 — Explanation of last point of support 8 Thermal shock When tested in accordance with 14.7.3.2, clay/ceramic straight outer wall elements shall withstand an intensity of loading of 10 MN/m². 9 Resistance to fire 9.1 External to external The performance criteria of integrity and insulation are declared as EI for the exposure outside to outside. Examples are given in Table 2. NOTE For fire classification see EN 13501-2 clause 7.5.11.

EN 13069:2005 (E) 8 Table 2 — Fire resistance performance classes

Fire resistance performance classes Duration in minutes EI 000 0 ≤ EI 000 < 30 EI 030 30 ≤ EI 030 < 60 EI 060 60 ≤ EI 060 < 90 EI 090 90 ≤ EI 090 < 120 EI 120 120 ≤ EI 120 10 Thermal resistance The values of thermal resistance of outer walls shall be declared by the manufacturer for a flue temperature of 200oC or calculated by the methods given in Annex A for the same temperature. 11 Water absorption and bulk density 11.1 General The outer wall body shall be tested for either water absorption or bulk density for production control. 11.2 Water absorption When tested in accordance with 14.8, the mean water absorption of five test specimens from new production of outer walls shall not vary more than ± 2,5 % from the mean value obtained for five test specimens taken from outer walls which have been subjected to the thermal type test. 11.3 Bulk density When tested in accordance with 14.9, the mean bulk density of five test specimens from new production of outer walls shall not vary more than ± 100 kg/m³ from the mean value obtained for five test specimens taken from outer walls which have been subjected to the thermal type test.

12 Resistance to freeze-thaw The manufacturer shall declare the freeze/thaw resistance in accordance with EN 14297. The product shall not present any damage of type 7, 8, 9 and 10 in accordance with EN 14297, Table 1. 13 Evaluation of conformity 13.1 General The conformity of the outer wall elements to the requirements of this standard and with the stated values (including classes) shall be demonstrated by:  initial type testing

 factory production control by the manufacturer, including product assessment.

EN 13069:2005 (E) 9 For the purposes of testing, the outer wall element may be grouped into families, where it is considered that the selected property/properties is/are common to all the outer wall elements within that family. 13.2 Initial type testing Type tests relating to material composition shall be performed initially together with factory production control tests as given in Table 3. One test shall be carried for each requirement. All thermal testing shall be carried out on one size of outer walls for each geometrical configuration, e.g. circular, square, rectangular. For circular outer walls the size to be tested shall be 200mm ± 50mm internal diameter. For other geometric configurations the outer walls shall have an equivalent cross section area range. 13.3 Further type tests Type tests shall be performed when a change is made either in material composition, processing technique or to the design or method of manufacture of the outer wall, but they may be performed more frequently by incorporation into a plant for monitoring the consistency of manufacture (see Table 3). Table 3 — Factory production control, initial type testing and type tests Relevant requirements clauses Item Factory production control 13.1 and 13.4 Initial type testing an type tests

13.1, 13.2
and
13.3 Straight Outer walls 5.1,5.2, 5.4, 5.5 and 11 6.1,7, 8, 9, 10 and 12

13.4 Factory production control To achieve compliance with this standard the manufacturer shall establish and maintain an effective documented quality system. Factory production control tests are carried out following manufacture to monitor the quality of product (see Table 3). Sampling and testing of any batch shall be completed prior to removal from the works and shall be in accordance with ISO 2859-1 at an AQL of 10 % and inspection level S2.

Isolated batches of units shall be assessed in accordance with tightened inspection procedures, with a maximum batch size of 1200 (see Annex B).

Batches rejected under the sampling procedure specified in 16.2 may be resubmitted once, after removal of units with previously undetected visible defects, under the tightened inspection procedures, in respect only of the defect that caused initial rejection.

NOTE A quality system assessed by a certification body which complies with the requirements of EN 45012 can be applied to ensure that the requirements of EN ISO 9001 and Clause 16 are complied with. 14 Test methods 14.1 Internal transverse dimensions For square and rectangular outer walls the maximum and minimum width/breadth shall be those calculated from the tolerances given in 5.1.

EN 13069:2005 (E) 10 For circular section outer walls, whether the maximum and minimum diameters shall be those calculated from the tolerances given in 5.1 or the test also may be carried out using two gauges whose diameters are set at the minimum and maximum diameters. The minimum gauge shall be able to be turned through 360° within the ends of the flue. The maximum gauge shall not be able to enter the flue when tested through a rotation of 360°.

Both ends of the outer walls shall be measured. 14.2 Height The maximum and minimum internal heights of a clay/ceramic outer wall shall be those calculated from the tolerances given in 5.2. If direct measurement is to be carried out, take two measurements at the maximum and minimum heights. The test may also be carried out by using two gauges whose heights are set at the minimum and maximum internal heights. The minimum gauges shall not be able to fit over the internal height of the outer wall. The maximum gauge shall be able to fit over the internal height of the outer wall. 14.3 Straightness The deviation from straightness of an outer wall is the maximum distance from the centre of a straight line equal to the test length spanning any concave curve on the outside of the outer wall to the outer wall surface (D) as shown in Figure 3. It is permissible to test for straightness using any suitable apparatus. The test length shall be 50 mm less than the nominal height of the outer wall to allow for clearance at the shoulder of any socket.

Key H is the nominal height of the outer wall in millimetres L

is the test length in millimetres D is the deviation from straightness, in millimetres H-L = 50 mm

Figure 3 — Terms for deviation from straightness 14.4 Squareness of ends 14.4.1 Gauge test The test gauge as shown in Figure 4 with one arm set at a slope of 30 mm/m to the other shall be provided with two pairs of supports at (50 ± 5) mm centres. The end support shall be positioned so that there is a recess of (30 ± 5) mm from the inside of the angled arm. The slope of the supports shall be such as to provide a clearance of at least 5 mm under the test gauge. The angled arm shall be of such a length as to span the outside diameter/width of the outer wall.

EN 13069:2005 (E) 11 The gauge shall be placed on the end of the outer wall, at the line of the longest external measurement of the outer wall. The slope of the end shall be checked against that of the gauge.

Key 1 30 mm/m slope a longitudinal section of gauge b cross-section of gauge c outer wall passing test d outer wall failing test Figure 4 — Squareness test for ends, gauge test 14.4.2 Direct measurement test The outer wall shall be placed upright on the flat plate. A set square shall be applied on the outside of the outer wall, at the inferior extremity

(see Figure 5). The horizontal distance (d) shall be measured at an accuracy of ± 0,5 mm. The slope is given by the formula: slope= 1000 d/H (mm/m) (2) Where:

EN 13069:2005 (E) 12 d: is the horizontal distance in millimetres. H: is the height of the outer wall in millimetres. Repeat the measurement with the outer wall on the other side. NOTE The joint section does not have to be taken into account.

Key 1 Set square 2 Outer wall element d horizontal distance in mm H height of the outer wall in mm Figure 5 — Squareness test for ends, direct measurement 14.5 Squareness of corners and flatness of walls The test gauge shall be as shown in Figure 6 with one arm set at an angle of (90 ± 0,5)° to the other and both arms of the test gauge of such a length as to span the outside width of the outer wall under test.

EN 13069:2005 (E) 13
Key x1 deviation from flatness of the wall, in millimetres.
x2 deviation from squareness of the wall, in millimetres.

Figure 6 — Squareness test for angles and flatness of walls The gauge shall be placed against two adjoining walls of square or rectangular straight outer walls and the distances x1 and x2 measured between the inner edge of the test gauge and the outside of the outer wall, excluding the rounded external corners, to an accuracy of ± 0,5 mm. The percentage deviation from flatness shall be calculated as:

11.100xLx (3) The percentage deviation from squareness shall be calculated as: 22.100xLx (4) Where: Lx1 is the manufacturer's stated nominal internal length of the wall against which x1 is measured, in mm.

Lx2 is the manufacturer's stated nominal internal length of the wall against which x2 is measured, in mm.

14.6 Compressive strength 14.6.1 Test sample The test specimen shall be cut from an outer wall and shall not include any part of a joint. The test specimen shall not be less than 150 mm high with flat and parallel ends on the full cross section of the outer wall. 14.6.2 Testing equipment The testing machine shall be substantial and rigid throughout so that the distribution of load will not be affected appreciably by the deformation or yielding of any part.

The machine shall be capable of applying the load at the rate specified in 14.6.3 and its accuracy shall be verified by the means detailed in EN ISO 7500-1.

The bearing faces of both the thrust packers and the thrust plates shall be larger than the outside dimensions of the outer wall under test.

EN 13069:2005 (E) 14 The thrust plates shall consist of metal, free from warping or twisting and be centrally located and of sufficient dimensions so as not to distort under load. One thrust plate shall be free to tilt in any direction so that it may align with the surface of its associated thrust packer. The thrust packers shall consist of (18 ± 2) mm thick moisture resistant flooring grade chipboard according to EN 312 which shall be flat pressed with the surface as pressed and be concentric with the thrust plates. New thrust packers shall be used for each test. The test specimen shall be placed in the machine so that the load is applied trough its longitudinal axis. 14.6.3 Procedure Ensure that the bearing surfaces of the machine and test specimen are clean and free from any loose particles. Place the test specimen, together with a thrust packer at each end, between the thrust plates.

Place the test specimen in the machine so that the load is applied through its longitudinal axis. Apply the load to the test specimen without shock and increase at a maximum rate of 14 MN/m2 per minute until the required intensity of loading as specified in 7.1 is reached. The proof load required to produce the specified intensity of loading shall be calculated by one of the following methods, as appropriate to the type of outer wall:

(i) For circular outer walls Proof load (N)= 4)(0,102221DD−π (5) where D1 = mean external diameter of the test piece, in millimetres D2 = mean internal diameter of the test piece, in millimetres (ii) For square outer walls Proof load (N) = 10,0 (W12 - W22) (6) where W1 = mean external width of the test piece (excluding rounded corners), in millimetres W2 = mean internal width of the test piece (excluding rounded corners), in millimetres (iii) For rectangular outer walls Proof load (N) = 10,0 (L1·B1-L2·B2) (7) where L1 = mean external width of the cross-section of the test piece (excluding rounded corners), in millimetres

B1 = mean external breadth of the cross section of the test piece (excluding rounded corners), in millimetres

L2 = mean internal width of the cross section of the test piece (excluding rounded corners), in millimetres

EN 13069:2005 (E) 15 B2 = mean internal breadth of the cross section of the test piece (excluding rounded corners), in millimetres (iv) For outer walls with vertical perforations Proof load (N) = 10,0 A (8) where A= net cross-sectional area of outer walls in square millimetres (i.e. measured by hydrostatic weighing) 14.7 Thermal performance tests 14.7.1 Test equipment An example of equipment suitable for heating the flue is shown in Figure 7.

Key 1 Exhaust gas canopy 2 Test flue 3 Outlet 4 Refractory collar 5 Ceramic fibre 6 Thermocouple 7 Gas burner

Figure 7 — Example of hot air generator The box furnace should be heated by a high-velocity gas burner where combustion is essentially completed within the burner body. The burner should be angled downwards so that the hot gases do not impinge directly onto the exhaust port in the roof of the furnace. The burner should be fired by a gaseous fuel (natural gas, propane or butane).

The maximum rated capacity of the burner shall not be less than 150 kW. An alternative source of heat may be used provided the same heating conditions apply. In order to obtain the required rate of heating, construct a light-weight furnace, i.e. low thermal mass. Typically, the internal dimensions of the box furnace are 700 mm long x 700 mm deep x 700 mm high and the box is lined with 100 mm of ceramic fibre.

The burner shall be placed centrally on one side of the box furnace.

EN 13069:2005 (E) 16 The exhaust port shall be fitted with a (300 ± 50) mm high outlet having the same internal cross-sectional dimensions as that of the test flue.

This outlet shall be supported on a collar of cast refractory concrete with an opening of the same shape as the internal cross-section of the flue. The temperature of the products of combustion shall be measured by a Type K (Nickel-Chromium / Nickel-Aluminium) thermocouple with an unsheathed junction located in the centre of the opening at the base of the flue.

The gas and air supply to the burner shall be adjustable and a gauge shall be fitted to measure the volume flow rate of air supplied. For permeability testing before and after subjecting the flue to a thermal test, a fan or other device capable of producing at least the required differential pressure, a flow meter and a manometer should be used. The air supply for the test shall be measured by a flow meter with an accuracy of

± 5 % of full scale. The full scale reading shall be approximately the flow rate for the maximum air permeability rate for the appropriate class of flue liner. 14.7.2 Test assembly 14.7.2.1 General Prior to assembly the test specimens shall be dried to constant mass at a temperature of (110 ± 5)ºC. Construct a test sample of outer walls, without joint, to give a minimum overall height of 2 m. If the manufacturer of the outer wall element specifies the type of liner for use with the outer wall element with or without insulation and/or an air gap include them in the test assembly, and construct the assembly in accordance with the manufacturers instructions. If the manufacturer does not specify the form of liner to be used with the outer wall install a single wall stainless steel liner (L316) having a wall thickness of 0,4 mm in the centre of the outer wall elements.

The liner shall have the same cross sectional profile as the opening in the outer wall elements and be positioned so that the gap between the outer wall elements is (25±5) mm. The gap between the liner and outer wall shall be sealed at the top and bottom of the assembly. If the outer wall has more than one passage, test the passage declared by the manufacturer. Passages can be used for ventilation or to contain a flue liner. The passage for which the highest temperature designation is given shall be tested. The remaining passages declared as being flue liner passages shall be sealed at top and bottom. The ventilation passage shall not be sealed.

14.7.2.2 Thermal shock Install the test sample in a free standing manner. 14.7.3 Procedure 14.7.3.1 General Deliver completely combusted gas, according to the flow rate in Table 4 into the test sample and raise the temperature of the gas uniformly to the appropriate test temperature (see Table 5) measured at the location determined as described in Figure 8.

EN 13069:2005 (E) 17 Table 4 — Hot gas volume flow rates test temperature and flue diameter A. Thermal performance – negative pressure chimneys (Volume flow in m3/h ± 10%) Test temperature °C Diameter mm 100 120 150 170 190 250 300 350 500 550 700 1000 80 42.1 42.9 43.9 45.1 46.3 50.2 53.7 57.2 67.4 68.2 80.6 108 100 65.8 66.9 68.5 70.4 72.3 78.5 83.9 89.3 105 110 126 144 125 102 104 107 110 113 123 132 140 164 172 197 252 150 148 150 154 159 163 177 189 201 237 238 283 360 175 201 205 210 216 221 240 257 274 322 338 386 468 200 263 266 274 282 289 314 337 357 421 439 504 612 B. Thermal performance – positive pressure chimneys (volume flow m3/h ± 10%) Test temperature °C Diameter mm 100 120 150 170 190 250 300 350 500 550 700 1000 50 22.0 22.8 24.0 25.0 26.0 28.0 30.0 32.0 37.0 38.8 44.1 - 80 64.0 66.0 69.0 72.0 74.0 80.0 85.5 91.0 107 112 126 108 100 105 109 115 119 122 133 142 151 177 185 209 144 125 174 180 189 196 202 220 235 249 292 305 345 252 150 262 271 285 295 304 331 353 375 440 460 520 360 175 370 383 404 417 430 468 500 531 622 651 736 468 200 500 518 545 564 580 632 675 717 840 879 994 612 NOTE: The flow rates are for heat generation from natural gas combustion.

14.7.3.2 Thermal shock 14.7.3.2.1 Test The temperature of the gas shall be raised in accordance with Table 5 then maintained for a period of 30 min. After heating, the test flue shall be allowed to cool to room temperature without forced ventilation and with the thermal insulation retained in position. Table 5 — Test temperature and time to test temperature

Test temperature oC Tolerance on test temperature oC Time to test temperature from start of heating min Soot fire resistant outer wall elements 1000 ± 50 10 T600 700 ± 25 7 T450 550 ± 25 5,5 T400 500 ± 25 5 T300 350 ± 25 3,5 ≤T250 250 ± 25 2,5

EN 13069:2005 (E) 18 14.7.3.2.2 Measurement of
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