Class

Test method (s)

Classification criteria

Additional classification

A1

EN ISO 1182 (1)

and

△T≤30℃;and

△m≤50%;and

t_f = 0 (i.e. no sustained flaming)

-

EN ISO 1716

PCS≤2.0MJ/kg (1) and

PCS≤2.0MJ/kg (2) (2a) and

PCS≤1.4MJ/m² (3) and

PCS≤2.0MJ/kg (4) and

-

A2

EN ISO 1182 (1)

or

△T≤50℃;and

△m≤50%;and

t_f≤20s

-

EN ISO 1716

and

PCS≤3.0MJ/kg (1) and

PCS≤4.0 MJ/m² and

PCS≤4.0MJ/m² (3) and

PCS≤3.0MJ/kg (4) and

-

EN 13823

FIGAR≤120W/S and

LFS＜edge of specimen and

THR_600S≤7.5MJ

Smoke production (5) and flaming droplets /particles (6)

B

EN 13823

and

FIGAR≤120W/S and

LFS＜edge of specimen and

THR_600S≤7.5MJ

Smoke production (5) and flaming droplets /particles (6)

EN ISO 11925-2 (8)

Exposure=30s

Fs≤150mm within 60s

C

EN 13823

and

FIGAR≤250W/S and

LFS＜edge of specimen and

THR_600S≤15MJ

Smoke production (5) and flaming droplets /particles (6)

EN ISO 11925-2 (8)

Exposure=30s

Fs≤150mm within 60s

D

EN 13823

and

FIGAR≤750W/S

Smoke production (5) and flaming droplets /particles (6)

EN ISO 11925-2 (8)

Exposure=30s

Fs≤150mm within 60s

E

EN ISO 11925-2 、(8)

Exposure=15s

Fs≤150mm within 60s

Flaming droplets/particles (7)

F

No performance determined

(1). For homogeneous products and substantial components of non-homogeneous products

(2).For any external non-substantial component of non-homogeneous products

(2a) 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 THR600, < 4,0 MJ, and s1 and d0

(3) For any Internal non-substantial component of non-homogeneous products

(4) For the product as a whole

(5) s1=SMOGRA≤30m²I/s² and TSP_600s≤5OM² ; s2 =SMOGRA≤180m²I/s² and TSP_600s≤200m²

s3 = not s1 or s2

(6) d0 = No flaming droplets/ particles in EN 13823 within 600s

dl No flaming droplets/ particles persisting 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

(7) Pass = no ignition of the paper (no classification);

      Fail = ignition of the paper (d2 classification)

(8) Under conditions of surface flame attack and, if appropriate to the end-use application of the product, edge flame attack.