EN 1443-2003 pdf download.Chimneys – General requirements.
— resistance to wind load;
— reaction to fire (only for plastic liners).
The manufacturer may declare the characteristics NPD (no performance declared), except for distance to
combustible material.
5 Dimensions, shapes and tolerances
The dimensions, shapes and tolerances of components should be validated in accordance with the specifications
of the relevant product standards.
6 Requirements
6.1 General
The requirements listed apply to chimneys constructed using components for a system chimney’ and for a custom-built chimneys.
Informative annex A lists the applicability to system chimneys or the components of custom-built chimneys of the requirements given in 6.2 to 6.7.
Informative annex B gives an example of the essential mandated characteristics for an annex ZA required for an harmonized product standard for chimneys.
6.2 Mechanical resistance and stability
All cliimneys shall be capable of withstanding horizontal and vertical loads. The following is a list of criteria to be taken into consideration in the material related product standards:
— compressive strength;
— tensile strength;
— resistance to lateral load for a reference wind velocity pressure of 1.5 kN/m2 resistance to abrasion and effects due to sweeping;
— bulk density;
— resistance to freeze-thaw by test according to prEN 14297 or appropriate material dependent test.
6.3.2 Sootf ire resistance
When thermal testing takes place for sootf ire resistance it shall be carried out at a test temperature of 1 000 °C I or
30mm.
6.3.3 Resistance to fire
6.3.3.1 General
The manufacturer shall declare the distance to combustible material, see 4.7. The distance shall satisfy the requirements given in 6.3.3.2 and 6.3.3.3 as appropriate.
NOTE The manufacturer can declare a distance to combustible material that reflects installation practice in individual member states regulations.
6.3.3.2 Resistance to tire from internal to external resulting from normal operating conditions
The maumum temperature of adjacent combustible materials shall not exceed 85 °C when related to an ambient temperature of 20 °C. The distance to combustible materials shall be verified by a test in accordance with p(EN 13216-1 for system chimneys or in the appropriate material dependent test standard to steady state at a test temperature given in Table 4 appropriate to the product designation.
6.3.3.3 Resistance to fire from internal to external resulting from sootfire conditions
The maximum temperature of adjacent combustible materials shall not exceed 100 °C when related to an ambient temperature of 20 °C when tested at the test temperature of 1 000 °C over a period of 30 mm. This distance to combustible material shall be verified by a test in accordance with prEN 13216-1 for system chimneys or in the appropriate material dependent test standard.
6.3.3.4 Resistance to fire resulting from external to external
The resistance to tire external to external shall be tested according to the relevant test standards for shafts
and ducts (for classification of resistance to fire).
6.3.4 Reaction to fire
In a chimney with plastic flue liners the manufacturer shall declare the reaction to fire class for the liner.
6.4.2 Water vapour diffusion resistance and condensate resistance
6.4.2.1 Chimneys operating under wet conditions
The water vapour diffusion res;stance and the condensate resistance shaft be in acconiance with the requirements
of the relevant product standard.
6.4.2.2 Chimneys operating under dry conditions
The water vapour diffusion resistance shall be in accordance with the requirements of the relevant product standard.
6.4.3 Corrosion resistance
The effect of corrosion on the flue liner shall be in accordance with the requirements of the relevant product
standard.
6.5 Safety in use
Where accidental human contact is possible the maximum temperature of the outer surface of a chimney or of its enclosure shall be for an one second burn threshold In accordance with EN 563 wfien tested at the nominal working temperature appropriate to the product designation.
6.6 Energy economy and heat retention
The thermal resistance of the chimney shall be determined by calculation or tests.
6.7 Additional criteria for chimney operation
6.7.1 Apertures for cleaning and inspection
The doors of openings for cleaning or inspection shall be in accordance with the requirements of the relevant product standard.EN 1443-2003 pdf download.