NF P 92-505 Dripping Test Apparatus
Compliance
NF P 92-505, ECE R 118
The Dripping Test Apparatus, in accordance with NF P92-505/ECE R118, is used to determine the melting behaviour of materials under a 500W radiant heat source.
During the NF P92-505 test, a specimen is placed horizontal and exposed to an electric radiator above. A receptacle is positioned under the specimen to collect the resultant drops. Some cotton wool is put in the receptacle in order to verify if any drop is flaming.
France original epiradiator-type heat radiation source, power rated at 500W, which radiant surface is made of a translucent vitreous fused silica disk of 100 mm diameter.
A movable handle device allows to slightly turn the epiradiator above the specimen or remove it.
Specimen support stand, with height adjustment function.
A receptacle is positioned 300mm under the specimen holder to collect the drops.
A power control unit for epiradiator radiant rate control.
Calorimeter in accordance with NF P92-505, for epiradiator calibration.
Water-cooled heat flux meter in accordance with ECE R118 Annex 7, for epiradiator calibration.
Dripping Test Apparatus consists of
The French M Classification for Building Materials (NF P 92-507)
The “Reaction to Fire” tests classify the material into 5 categories from M0 to M4. The specific standard that is applicable depends on the intended use and defines test methods for all materials.
M0 - Non-flammable (Calorific Value ≤ 2.5 MJ/kg)
M1 - Non-flammable (Calorific Value ＞ 2.5 MJ/kg)
M2 - Low flammability
M3 - Moderately flammable
M4 - High flammability
| Class | Test & Device |
|---|---|
| M0 |
· NF P 92-510 | Oxygen Bomb Calorimeter · NF P 92-503 | Electrical Burner Test Device |
| M1/M2/M3/M4 |
· NF P 92-503 | Electrical Burner Test Device · NF P 92-504 | Speed Of Spread Of Flame Test Device · NF P 92-505 | Dripping Test Apparatus |
Table 1 Flexible Materials with Thickness ≤5mm.
| Class | Test & Device |
|---|---|
| M0 |
· NF P 92-510 | Oxygen Bomb Calorimeter · NF P 92-501 | Radiation Test Device |
| M1/M2/M3/M4 |
· NF P 92-501 | Radiation Test Device · NF P 92-504 | Speed Of Spread Of Flame Test Device · NF P 92-505 | Dripping Test Apparatus |
Table 2 Rigid Materials, or Materials on Rigid Substrates, or Flexible Materials Thicker 5mm.
| Class | Test & Device |
|---|---|
| M0 |
· NF P 92-510 | Oxygen Bomb Calorimeter · NF P 92-501 | Radiation Test Device |
| M1/M2 |
· NF P 92-501 | Radiation Test Device |
| M3/M4 |
· NF P 92-506 | Panel Heater Test Device |
Table 3 Flooring