Fire Behaviour

Fire behaviour of construction materials, e.g. piping systems and isolation materials, have been defined in fire classification classes as per DIN 4102-1. Construction materials are classified as combustible and non-combustible materials. Astral Silencio is listed as B1 non-readily ignitable as per DIN 4102-1.

Criteria Old Classification
as per DIN 4102-1
New European classification
according to DIN EN 13501-1
Additional criteria
Non – combustible A1
A2
A1
A2
s1 d0
Non-readily ignitable (low flame spread) B1
B2
B3
B
C
A2
B
C
A2
B
C
A2
B
C
s1
s1
s2/s3
s2/s3
s2/s3
s1
s1
s1
s3
s3
s3
d0
d0
d0
d0
d0
d1/d2
d1/d2
d1/d2
d2
d2
d2
Normally ignitable (normal fire behavior) D
E
D
E
s1/s2/s3

s1/s2/s3
d0
d0
d2
d2
Readily ignitable F

Fire behaviour classification according to DIN 4102-1 and DIN EN 13501-1.

In line with European standardization, the fire classification classes as per DIN 4102-1 are translated into the European DIN EN 13501. The accreditation is based on the standardized Single-Burning-Item-Test (SBI) in conformity with DIN EN 13823.