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Annex Classes of reaction to fire performance

United Kingdom

Original text. Later amendments are not shown.

Table 1

Classes of reaction to fire performance for construction products excluding floorings, linear pipe thermal insulation products, and electric cables

For homogeneous products and substantial components of non-homogeneous products.

For any external non-substantial component of non-homogeneous products.

  1. (2a)

    Alternatively, any external non-substantial component having a PCS ≤ 2,0 MJm– 2, provided that the product satisfies the following criteria of EN 13823(SBI): FIGRA ≤ 20 Ws– 1; and LFS < edge of specimen; and THR600s ≤ 4,0 MJ; and s1; and d0.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

s1 = SMOGRA ≤ 30m2s– 2 and TSP600s ≤ 50m2; s2 = SMOGRA ≤ 180m2s– 2 and TSP600s ≤ 200m2; s3 = not s1 or s2.

d0 = No flaming droplets/particles in EN 13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN 13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
ClassTest method(s)Classification criteriaAdditional classification
A1

EN ISO 1182f1;

and

ΔΤ ≤ 30 °C; and

Δm ≤ 50 %; and

tf = 0 (i.e. no sustained flaming)

EN ISO 1716

PCS ≤ 2,0 MJkg– 1 ; and

PCS ≤ 2,0 MJkg– 1 f2 f3; and

PCS ≤ 1,4 MJm– 2 f4; and

PCS ≤ 2,0 MJkg– 1 f5

A2

EN ISO 1182;

or

ΔΤ ≤ 50 °C; and

Δm ≤ 50 %; and

tf ≤ 20 s

EN ISO 1716;

and

PCS ≤ 3,0 MJkg– 1 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 3,0 MJkg– 1

EN 13823 (SBI)

FIGRA ≤ 120 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 7,5 MJ

Smoke productionf6; and

Flaming droplets/particlesf7

B

EN 13823 (SBI);

and

FIGRA ≤ 120 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 7,5 MJ

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2f8:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
C

EN 13823 (SBI);

and

FIGRA ≤ 250 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 15 MJ

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
D

EN 13823 (SBI);

and

FIGRA ≤ 750 Ws– 1

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
E

EN ISO 11925-2:

Exposure = 15 s

Fs ≤ 150 mm within 20 sFlaming droplets/particlesf9
F

EN ISO 11925-2:

Exposure = 15 s

Fs > 150 mm within 20 s

Table 2

Classes of reaction to fire performance for floorings

For homogeneous products and substantial components of non-homogeneous products.

For any external non-substantial component of non-homogeneous products.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

Test duration = 30 minutes.

Critical flux is defined as the radiant flux at which the flame extinguishes or the radiant flux after a test period of 30 minutes, whichever is the lower (i.e. the flux corresponding with the furthest extent of spread of flame).

s1 = Smoke ≤ 750 %.min; s2 = not s1.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
ClassTest method(s)Classification criteriaAdditional classification
A1FL

EN ISO 1182f10;

and

ΔΤ ≤ 30 °C; and

Δm ≤ 50 %; and

tf = 0 (i.e. no sustained flaming)

EN ISO 1716

PCS ≤ 2,0 MJkg– 1 ; and

PCS ≤ 2,0 MJkg– 1 f11; and

PCS ≤ 1,4 MJm– 2 f12; and

PCS ≤ 2,0 MJkg– 1 f13

A2FL

EN ISO 1182;

or

ΔΤ ≤ 50 °C; and

Δm ≤ 50 %; and

tf ≤ 20 s

EN ISO 1716;

and

PCS ≤ 3,0 MJkg– 1 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 3,0 MJkg– 1

EN ISO 9239-1f14 Critical fluxf15 ≥ 8,0 kWm– 2 Smoke productionf16
BFL

EN ISO 9239-1

and

Critical flux ≥ 8,0 kWm– 2 Smoke production

EN ISO 11925-2f17:

Exposure = 15 s

Fs ≤ 150 mm within 20 s
CFL

EN ISO 9239-1

and

Critical flux ≥ 4,5 kWm– 2 Smoke production

EN ISO 11925-2:

Exposure = 15 s

Fs ≤ 150 mm within 20 s
DFL

EN ISO 9239-1

and

Critical flux ≥ 3,0 kWm– 2 Smoke production

EN ISO 11925-2:

Exposure = 15 s

Fs ≤ 150 mm within 20 s
EFL

EN ISO 11925-2:

Exposure = 15 s

Fs ≤ 150 mm within 20 s
FFL

EN ISO 11925-2:

Exposure = 15 s

Fs > 150 mm within 20 s

Table 3

Classes of reaction to fire performance for linear pipe insulation products

For homogeneous products and substantial components of non-homogeneous products.

For any external non-substantial component of non-homogeneous products.

For any internal non-substantial component of non-homogeneous products.

For the product as a whole.

s1 = SMOGRA ≤ 105 m2s– 2 and TSP600s ≤ 250 m2; s2 = SMOGRA ≤ 580 m2s– 2 and TSP600s ≤ 1 600 m2; s3 = not s1 or s2.

d0 = No flaming droplets/particles in EN13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.
ClassTest method(s)Classification criteriaAdditional classification
A1L

EN ISO 1182f18;

and

ΔT ≤ 30 °C; and

Δm ≤ 50 %; and

tf = 0 (i.e. no sustained flaming)

EN ISO 1716

PCS ≤ 2,0 MJkg– 1 ; and

PCS ≤ 2,0 MJkg– 1 f19; and

PCS ≤ 1,4 MJm– 2 f20; and

PCS ≤ 2,0 MJkg– 1 f21

A2L

EN ISO 1182;

or

ΔT ≤ 50 °C; and

Δm ≤ 50 %; and tf ≤ 20 s

EN ISO 1716;

and

PCS ≤ 3,0 MJkg– 1 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 4,0 MJm– 2 ; and

PCS ≤ 3,0 MJkg– 1

EN 13823 (SBI)

FIGRA ≤ 270 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 7,5 MJ

Smoke productionf22; and

Flaming droplets/particlesf23

BL

EN 13823 (SBI);

and

FIGRA ≤ 270 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 7,5 MJ

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2f24:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
CL

EN 13823 (SBI);

and

FIGRA ≤ 460 Ws– 1; and

LFS < edge of specimen; and

THR600s ≤ 15 MJ

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
DL

EN 13823 (SBI);

and

FIGRA ≤ 2 100 Ws– 1

THR600s ≤ 100 MJ

Smoke production; and

Flaming droplets/particles

EN ISO 11925-2:

Exposure = 30 s

Fs ≤ 150 mm within 60 s
EL

EN ISO 11925-2:

Exposure = 15 s

Fs ≤ 150 mm within 20 sFlaming droplets/particlesf25
FL

EN ISO 11925-2:

Exposure = 15 s

Fs > 150mm within 20 s

Table 4

Classes of reaction to fire performance for electric cables

For the product as a whole, excluding metallic materials, and for any external component (i.e. sheath) of the product.

s1 = TSP1200 ≤ 50 m2 and Peak SPR ≤ 0,25 m2/s

s1a = s1 and transmittance in accordance with EN 61034-2 ≥ 80 %

s1b = s1 and transmittance in accordance with EN 61034-2 ≥ 60 % < 80 %

s2 = TSP1200 ≤ 400 m2 and Peak SPR ≤ 1,5 m2/s

s3 = not s1 or s2

d0 = No flaming droplets/particles within 1 200 s; d1 = No flaming droplets/particles persisting longer than 10 s within 1 200 s; d2 = not d0 or d1.

EN 60754-2: a1 = conductivity < 2,5 μS/mm and pH > 4,3; a2 = conductivity < 10 μS/mm and pH > 4,3; a3 = not a1 or a2.

The smoke class declared for class B1ca cables must originate from the EN 50399 test (30 kW flame source).

The smoke class declared for class B2ca, Cca, Dca cables must originate from the EN 50399 test (20,5 kW flame source).
ClassTest method(s)Classification criteriaAdditional classification
Aca EN ISO 1716PCS ≤ 2,0 MJ/kgf26
B1ca

EN 50399 (30 kW flame source)

and

FS ≤ 1,75 m and

THR1200s ≤ 10 MJ and

Peak HRR ≤ 20 kW and

FIGRA ≤ 120 Ws– 1

Smoke productionf27 f28 and Flaming droplets/particlesf29 and Acidity (pH and conductivity)f30
EN 60332-1-2H ≤ 425 mm
B2ca

EN 50399 (20,5 kW flame source)

and

FS ≤ 1,5 m; and

THR1200s ≤ 15 MJ; and

Peak HRR ≤ 30 kW; and

FIGRA ≤ 150 Ws– 1

Smoke production f31 and Flaming droplets/particles and Acidity (pH and conductivity)
EN 60332-1-2H ≤ 425 mm
Cca

EN 50399 (20,5 kW flame source)

and

FS ≤ 2,0 m; and

THR1200s ≤ 30 MJ; and

Peak HRR ≤ 60 kW; and

FIGRA ≤ 300 Ws– 1

Smoke production and Flaming droplets/particles and Acidity (pH and conductivity)
EN 60332-1-2H ≤ 425 mm
Dca

EN 50399 (20,5 kW flame source)

and

THR1200s ≤ 70 MJ; and

Peak HRR ≤ 400 kW; and

FIGRA ≤ 1 300 Ws– 1

Smoke production and Flaming droplets/particles and Acidity (pH and conductivity)
EN 60332-1-2H ≤ 425 mm
Eca EN 60332-1-2H ≤ 425 mm
Fca EN 60332-1-2H > 425 mm
  1. 1.1For the purposes of Tables 1 to 4 the following symbols apply:
  2. 1.2For the purposes of Tables 1, 2 and 3 the following symbols apply:
  3. 1.3For the purposes of Table 4 the following symbols and test parameters apply:
  4. 2For the purposes of Tables 1 to 4 the following definitions apply:

Annotations

Footnotes

f1

For homogeneous products and substantial components of non-homogeneous products.

f2

For any external non-substantial component of non-homogeneous products.

f3
  1. (2a)

    Alternatively, any external non-substantial component having a PCS ≤ 2,0 MJm– 2, provided that the product satisfies the following criteria of EN 13823(SBI): FIGRA ≤ 20 Ws– 1; and LFS < edge of specimen; and THR600s ≤ 4,0 MJ; and s1; and d0.

f4

For any internal non-substantial component of non-homogeneous products.

f5

For the product as a whole.

f6

s1 = SMOGRA ≤ 30m2s– 2 and TSP600s ≤ 50m2; s2 = SMOGRA ≤ 180m2s– 2 and TSP600s ≤ 200m2; s3 = not s1 or s2.

f7

d0 = No flaming droplets/particles in EN 13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN 13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.

f8

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

f9

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

f10

For homogeneous products and substantial components of non-homogeneous products.

f11

For any external non-substantial component of non-homogeneous products.

f12

For any internal non-substantial component of non-homogeneous products.

f13

For the product as a whole.

f14

Test duration = 30 minutes.

f15

Critical flux is defined as the radiant flux at which the flame extinguishes or the radiant flux after a test period of 30 minutes, whichever is the lower (i.e. the flux corresponding with the furthest extent of spread of flame).

f16

s1 = Smoke ≤ 750 %.min; s2 = not s1.

f17

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

f18

For homogeneous products and substantial components of non-homogeneous products.

f19

For any external non-substantial component of non-homogeneous products.

f20

For any internal non-substantial component of non-homogeneous products.

f21

For the product as a whole.

f22

s1 = SMOGRA ≤ 105 m2s– 2 and TSP600s ≤ 250 m2; s2 = SMOGRA ≤ 580 m2s– 2 and TSP600s ≤ 1 600 m2; s3 = not s1 or s2.

f23

d0 = No flaming droplets/particles in EN13823 (SBI) within 600s; d1 = No flaming droplets/particles persisting longer than 10s in EN13823 (SBI) within 600s; d2 = not d0 or d1; Ignition of the paper in EN ISO 11925-2 results in a d2 classification.

f24

Under conditions of surface flame attack and, if appropriate to the intended use of the product, edge flame attack.

f25

No ignition of the paper = no additional classification; Ignition of the paper = d2 classification.

f26

For the product as a whole, excluding metallic materials, and for any external component (i.e. sheath) of the product.

f27

s1 = TSP1200 ≤ 50 m2 and Peak SPR ≤ 0,25 m2/s

s1a = s1 and transmittance in accordance with EN 61034-2 ≥ 80 %

s1b = s1 and transmittance in accordance with EN 61034-2 ≥ 60 % < 80 %

s2 = TSP1200 ≤ 400 m2 and Peak SPR ≤ 1,5 m2/s

s3 = not s1 or s2

f28

The smoke class declared for class B1ca cables must originate from the EN 50399 test (30 kW flame source).

f29

d0 = No flaming droplets/particles within 1 200 s; d1 = No flaming droplets/particles persisting longer than 10 s within 1 200 s; d2 = not d0 or d1.

f30

EN 60754-2: a1 = conductivity < 2,5 μS/mm and pH > 4,3; a2 = conductivity < 10 μS/mm and pH > 4,3; a3 = not a1 or a2.

f31

The smoke class declared for class B2ca, Cca, Dca cables must originate from the EN 50399 test (20,5 kW flame source).