NFP92-503/NF P 92-503: M classification combustion test

1. Standard-- NFP92-503/NF P 92-503

NF P 92-503: Electrical burner test used for flexible materials thickness no more than 5mm

2. Test method—NFP92-503/NF P 92-503

A specimen in placed in a specimen holder at 30° above a radiator which gives out heat (30kW/m²). A small butane flame is applied directly to the fabric surface.  The following aspects are recorded: 

- duration of the flame

- production of burning droplets

- length/width of the damaged specimen

If specific, unusual, specimen behaviour is observed additional supplementary tests NF P 92-504 & NF P 92-505) may be required.
 

3. M Classification: M0-M4(M0、M1、M2、M3、M4)

4.Other Standard of M classification

NF P 92-501: Building materials- Reaction to fire tests, radiation test used for rigid material or flexible materials thickness more than 5mm.

NF P 92-503: Electrical burner test used for flexible materials thickness no more than 5mm

NF P 92-504: speed of spread of flame test used for the materials which are not intended to be glued on a rigid substrate.

NF P 92-505: Dripping test with electrical radiator, used for melting materials.

NFP92-506: Fire safety, Building materials, Reaction for fire tests, Radiant panel test for flooring

NFP92-507: Fire safety, Building materials, Construction and furnishing materials –Classification according to reaction to fire.

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