EN ISO 119252 Single Flame Source Test Apparatus
Flame spread of light diffusers and air filters are determined according to EN ISO 119252.
This test is also required as part of the European construction products regulation for assessing and qualifying reaction to fire performance of all types of construction products to classes B, C, D and E.
EN ISO 119252 is based on the Kleinbrenner method for determining ignitability of materials in the vertical orientation by direct small flame impingement under zero impressed irradiance. It is supplied as a complete easytouse system incorporating safety features. The combustion chamber is made from corrosion resistant stainless steel, to maximise operating life. It has
large front and side doors which are glazed with toughened glass for full view of the specimen during a test and easy access.
Table 4: Requirements concerning Flame Spread for EN ISO 119252 test Requirement set Test parameter and unit
HL1 R4 R5
Flame spread [mm] Flaming droplets Flame spread [mm]
Maximum threshold HL2
150 (within 60 s) 0
150 (within 60 s) Figure 7: FTT EN ISO 119252 Single Flame Source Test Apparatus
HL3
FIRE TESTING TECHNOLOGY
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