Designation of safety shoe categories
DIN EN ISO 20345:2007
Basic requirements as per standard (inc. toe cap)
S1:As "SB", plus closed heel area, antistatic, energy absorbtion capacity in heel area
S2:As S1, additional requirements in terms of water penetration and water absorption
S3:As S2, additional penetration protection, profile sole
Designation of professional shoe categories
DIN EN ISO 20347:2007
Closed heel area, antistatic, energy absorbtion capacity in heel area, additional requirements in terms of water penetration and water absorption
O3:As O2, additional penetration protection, profile sole
Meanings of additional requirements
Extract from EN ISO 20345:2007/20347:2007)
Heat insulation of sole complex
CI:Cold insulation of sole complex
WR:Water resistance of shoes
WRU:Water penetration and water absorption
HRO:Behaviour of sole with regards to contact heat
M:Metarsal protection
AN:Ankle protection
FO:Fuel resistance of sole
Types of fire fighter shoes acc. to
DIN EN 15090:2006
suitable for general technical assistance(e.g. Type 1, HI1) and fire fighting only in the open (e.g. Type 1 HI2; Type 1 HI3)
Type 2:heavy-duty basic protection shoes, suitable forindoor and all other types of fire; standard fire fighter boots (e.g. Type 2 HI2; Type 2 HI3)
Type 3:special protection shoes, suitable for missions involving unusual risks, such as hazardous goods; equally suited for all types of fire fighting (e.g. Type 3 HI2; Type 3 HI3)
The type and protective function of fire fighting shoes is indicated in the bottom right-hand corner of the pictogram (fireman), e.g.: F2A, where
F:complies with all normative requirements
1 / 2:Type 1 / Type 2
P:Puncture resistance
A:complies with antistatic requirements
Meaning of the marking symbols
Level of heat insulation of the sole complex at 150° C / 30 min.
HI3:Level of heat insulation of the sole complex at 250° C / 40 min.

