BS ISO 10294-5:2005 pdf download.Fire resistance tests ——Fire dampers for air distribution systems —— Part 5: Intumescent fire dampers.
4.2.2.3 Test specimens
Three specimens of the smallesisized damper In the range of critical reactive Intumescent components shall
be tested.
4.2.2.4 Test method
Each specimen or critical reactive component shall be placed in the oven. The oven shall be set at 30 C below the activation temperature given by the manufacturer for the intumescent material under test. The oven temperature shad be maintained for at least 15 mm and inlurnescent activity observed Should no intumescent development occur, the temperature shall be increased by increments of 5°C and maintained for a minimum of 15 mm at each stage until activation does commence.
4.2.3 Faulty set-off
4.2.3.1 General
This test method is intended to cover standard operating conditions (60 °C; see ISO 10294-4). However, the test rnettiod may be adapted to cover situations where the inturnescent damper is intended to be operated at either lower or higher temperatures, for example dampers used In cold climates or those installed in warm•air ducts, by using the appropriate operating temperature as the test temperature. Except for the temperaturesthreshold limits, there shal be accordance with all other conditions specified In this part of
ISO 10294.
4.2.3.2 Apparatus
42.32.1 Oven, with a standard temperature operating range of 25 °C to at least 80 C or a range compatible with the chosen operating temperature to within better than ± 3 °C.
4.2.3.2.2 Temperature-measuring and display device for oven, with an accuracy of ± 1 °C.
4.2.3.2.3 ThIckness-measuring device, with an accuracy of 0.05 mm.
Three specimens of the smallesisized damper In the range of critical reactive Intumescent components shall
be tested.
4.2.2.4 Test method
Each specimen or critical reactive component shall be placed in the oven. The oven shall be set at 30 C below the activation temperature given by the manufacturer for the intumescent material under test. The oven temperature shad be maintained for at least 15 mm and inlurnescent activity observed Should no intumescent development occur, the temperature shall be increased by increments of 5°C and maintained for a minimum of 15 mm at each stage until activation does commence.
4.2.3 Faulty set-off
4.2.3.1 General
This test method is intended to cover standard operating conditions (60 °C; see ISO 10294-4). However, the test rnettiod may be adapted to cover situations where the inturnescent damper is intended to be operated at either lower or higher temperatures, for example dampers used In cold climates or those installed in warm•air ducts, by using the appropriate operating temperature as the test temperature. Except for the temperaturesthreshold limits, there shal be accordance with all other conditions specified In this part of
ISO 10294.
4.2.3.2 Apparatus
42.32.1 Oven, with a standard temperature operating range of 25 °C to at least 80 C or a range compatible with the chosen operating temperature to within better than ± 3 °C.
4.2.3.2.2 Temperature-measuring and display device for oven, with an accuracy of ± 1 °C.
4.2.3.2.3 ThIckness-measuring device, with an accuracy of 0.05 mm.
