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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 -

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 -

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 -

Rule books and regulative used in the field of fire reaction

Besides above mentioned testing methods, we also offer services of product testing according to following test methods: