EN 13069:2005

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

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

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.

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.

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.

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.

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.

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.

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:

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.

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.

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

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.

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 thi
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