Features

Reaction to fire

Reaction to fire and classification of products according to standard SRPS EN 13501-1

In the initial stages of fire, materials and constructions contribute to fire development. Classification of building products, based on results of the examination, is done according to standard SRPS EN 13501-1. Laboratory is capable of conducting all necessary examinations in order to make classification in accordance to mentioned standard. Tests done for the purpose of fire classification are:

First two testing methods are used for examination of materials that do not contribute to fire development significantly (classes A1 and A2)

SBI test is required for product classification from A2 to D class, not including floor products.

Floor products are tested with different method – FLOORING TEST. Classes for products tested with this method scale from A2FL and DFL

Products tested with Single flame source test can achieve classes from B to E.

On the picture bellow, table from standard SRPS EN 13501-1 is shown. In the table are given required test methods with grading criteria which are required for product to be classified to certain class. Following table does not refer to floors and pipe insulation.

Class Test method(s) Classification criteria Additional classification
A1 EN ISO 1182a
and		 Δ T ≤ 30 ℃; and
Δ m ≤ 50%; and
tf = 0 s (i.e. no sustained flaming) 		-
EN ISO 1716 PCS ≤ 2,0 MJ / kg a and
PCS ≤ 2,0 MJ / kg b c and
PCS ≤ 1,4 MJ / m² d and
PCS ≤ 2,0 MJ / kg e
 -
A2 EN ISO 1182 a
or 		Δ T ≤ 50 ℃; and
Δ m ≤ 50%; and
tf ≤ 20 s 		-
EN ISO 1716 PCS ≤ 3,0 MJ / kg a and
PCS ≤ 4,0 MJ / m² b and
PCS ≤ 4,0 MJ / m² d and
PCS ≤ 3,0 MJ / kg e
 -
EN 13823 FIGRA0,2 Mj ≤ 120 W / s and
LFS < edge of specimen and
THR 600s ≤ 7,5 MJ 		Smoke production f and
Flaming droplets/particles g
B EN 13823
and		 FIGRA0,2 Mj ≤ 120 W / s and
LFS < edge of specimen and
THR 600s ≤ 7,5 MJ 		Smoke production f and
Flaming droplets/particles g
EN ISO 11925-2 i
Exposure = 30 s 		Fs ≤ 150 mm within 60s
C EN 13823
and 		FIGRA0,4 Mj ≤ 250 W / s and
LFS < edge of specimen and
THR 600s ≤ 15 MJ 		Smoke production f and
Flaming droplets/particles g
EN ISO 11925-2 i
Exposure = 30 s 		Fs ≤ 150 mm within 60s
D EN 13823
and 		FIGRA0,4 Mj ≤ 750 W / s Smoke production f and
Flaming droplets/particles g
EN ISO 11925-2 i
Exposure = 30 s 		Fs ≤ 150 mm within 60s
E EN ISO 11925-2 i
Exposure = 15 s 		Fs ≤ 150 mm within 20s Flaming droplets / particles h
F EN ISO 11925-2 i
Exposure = 15 s 		Fs > 150 mm within 20s -
a For homogeneous products and substantial components of non-homogeneous products.
b For any external non-substantial component of non-homogeneous products.
c Alternatively, any external non-substantial component having a PCS ≤ 2,0 MJ / m² , provideed that the product satisfies the following criteria of EN 13823: FIGRA ≤ 20 W / s , and LFS < edge of specimen , and THR 600s ≤ 4,0 MJ , and s1 and d0.
d For any internal non-substantial compenent of non-homogeneous products.
e For the product as a whole.
f s1 = SMOGRA ≤ 30m²/s² and TSP600s ≤ 50m²; s2 = SMOGRA ≤ 180m²/s² and TSP600s ≤ 200m²;s3 = not s1 or s2
z d0 = No flaming droplets / particles in EN 13823 within 600s;
d1 = no flaming droplets / particles parsisting longer than 10s in EN 13823 within 600s;
d2 = not d0 or d1.
Ignition of the paper in EN ISO 11925-2 results in a d2 classification.
h Pass = no ignition of the paper (no classification);
Fail = ignition of of the paper (d2 classification).
i Under conditions of surface flame attack and, if appropriate to the end-use application of the product, edge flame attack.

In the following image the table given is extracted from classification standard that refers to floor coverings

Class Test method(s) Classification criteria Additional classification
A1 fl EN ISO 1182a
and		 Δ T ≤ 30 ℃; and
Δ m ≤ 50%; and
tf = 0 s (i.e. no sustained flaming) 		-
EN ISO 1716 PCS ≤ 2,0 MJ / kg a and
PCS ≤ 2,0 MJ / kg b and
PCS ≤ 1,4 MJ / m² c and
PCS ≤ 2,0 MJ / kg d
 -
A2 fl EN ISO 1182 a
or 		Δ T ≤ 50 ℃; and
Δ m ≤ 50%; and
tf ≤ 20 s 		-
EN ISO 1716
and 		PCS ≤ 3,0 MJ / kg a and
PCS ≤ 4,0 MJ / m² b and
PCS ≤ 4,0 MJ / m² c and
PCS ≤ 3,0 MJ / kg d
 -
EN ISO 9239-1 e Critical flux f ≥ 8,0 kW / m² Smoke production g
B fl EN ISO 9239-1 e
and 		Critical flux f ≥ 8,0 kW / m² Smoke production g
EN ISO 11925-2 h
Exposure = 15 s 		Fs ≤ 150 mm within 20s -
C fl EN ISO 9239-1 e
and 		Critical flux f ≥ 4,5 kW / m² Smoke production f
EN ISO 11925-2 h
Exposure = 15 s 		Fs ≤ 150 mm within 20s -
D fl EN ISO 9239-1 e
and 		Critical flux f ≥ 3,0 kW / m² Smoke production g
EN ISO 11925-2 h
Exposure = 15 s 		Fs ≤ 150 mm within 20s -
E fl EN ISO 11925-2 h
Exposure = 15 s 		Fs ≤ 150 mm within 20s -
F fl EN ISO 11925-2 h
Exposure = 15 s 		Fs > 150 mm within 20s -
a For homogeneous products and substantial components of non-homogeneous products.
b For any external non-substantial component of non-homogeneous products.
c For any internal non-substantial compenent of non-homogeneous products.
d For the product as a whole.
e Test duration = 30min.
f Critical flux is defined as the radiant flux at which the flame extinguishes or the radiant flux after a test period of 30min, whichever is the lower(i.e. the flux corresponding with the furthest extent of spread of flame).
g s1 = Smoke ≤ 750% min;
s2 = not s1.
h Under conditions of surface flame attack and, if appropriate to the end use application of the product, edgee flame attack.

In the following image the table given is extracted from classification standard that refers to pipe insulation.

Class Test method(s) Classification criteria Additional classification
A1 L EN ISO 1182a
and		 Δ T ≤ 30 ℃; and
Δ m ≤ 50%; and
tf = 0 s (i.e. no sustained flaming) 		-
EN ISO 1716 PCS ≤ 2,0 MJ / kg a and
PCS ≤ 2,0 MJ / kg b and
PCS ≤ 1,4 MJ / m² c and
PCS ≤ 2,0 MJ / kg d
 -
A2 L EN ISO 1182 a
and 		Δ T ≤ 50 ℃; and
Δ m ≤ 50%; and
tf ≤ 20 s 		-
EN ISO 1716
and 		PCS ≤ 3,0 MJ / kg a and
PCS ≤ 4,0 MJ / m² b and
PCS ≤ 4,0 MJ / m² c and
PCS ≤ 3,0 MJ / kg d
 -
EN 13823 FIGRA0,2 Mj ≤ 270 W / s and
LFS < edge of specimen and
THR 600s ≤ 7,5 MJ 		Smoke production e and
Flaming droplets/particles f
B L EN 13823
and 		FIGRA0,2 Mj ≤ 270 W / s and
LFS < edge of specimen and
THR 600s ≤ 7,5 MJ 		Smoke production e and
Flaming droplets/particles f
EN ISO 11925-2 h
Exposure = 30 s 		Fs ≤ 150 mm within 60s
C L EN 13823
and 		FIGRA0,2 Mj ≤ 460 W / s and
LFS < edge of specimen and
THR 600s ≤ 15 MJ 		Smoke production e and
Flaming droplets/particles f
EN ISO 11925-2 h
Exposure = 30 s 		Fs ≤ 150 mm within 60s
D L EN 13823
and 		FIGRA0,4 Mj ≤ 2 100 W / s
THR 600s ≤ 100 MJ 		Smoke production e and
Flaming droplets/particles f
EN ISO 11925-2 h
Exposure = 30 s 		Fs ≤ 150 mm within 60s
E L EN ISO 11925-2 h
Exposure = 15 s 		Fs ≤ 150 mm within 20s Flaming droplets / particles g
F L EN ISO 11925-2 h
Exposure = 15 s 		Fs > 150 mm within 20s -
a For homogeneous products and substantial components of non-homogeneous products.
b For any external non-substantial component of non-homogeneous products.
c Alternatively, any external non-substantial component having a PCS ≤ 2,0 MJ/m2 , provided that the product satisfies the following criteria of EN 13823: FIGRA ≤ 20 W/s, and LFS < edge of specimen, and THR600s ≤ 4,0 MJ, and s1, and d0.
d For any internal non-substantial component of non-homogeneous products.
e For the product as a whole.
f s1 = SMOGRA ≤ 30m2/s2 and TSP600s ≤ 50m2 ; s2 = SMOGRA ≤ 180m2/s2 and TSP600s ≤ 200m2; s3 = not s1 or s2
g d0 = No flaming droplets/ particles in EN 13823 within 600 s;
d1 = no flaming droplets/ particles persisting longer than 10 s in EN 13823 within 600 s;
d2 = not d0 or d1.
Ignition of the paper in EN ISO 11925-2 results in a d2 classification.
h Pass = no ignition of the paper (no classification);
Fail = ignition of the paper (d2 classification).
i Under conditions of surface flame attack and, if appropriate to the end–use application of the product, edge flame attack.
Non-combustibility test
  • SRPS EN 1182
Read more
Determination of the gross heat of combustion6
  • SRPS EN 1716
Read more
SBI - Test
  • SRPS EN 13823
Read more
Single flame source test
  • SRPS EN 11925-2
Read more
Flooring test
  • SRPS EN 9239-1
Read more