Safety shoes standards: practical guide

SAFETY FOOTWEAR (Ref. Standard EN ISO 20345 2011)
Category	Characteristics
SB	Basic safety requirements
S1	SB + Closed heel zone, anti-static properties, energy absorption in the heel FO resistance of the sole to hydrocarbons
S2	S1 + resistance of the upper to water penetration and absorption
S3	S2 + resistance of the outsole to perforation, pleated soles

NORMATIVA ESD CEI EN 61340-5-1:2016

THE MARK OF CONFORMITY WITH ESD STANDARD CERTIFIES THE CAPACITY OF THE FOOTWEAR TO DISCHARGE ELECTROSTATIC ENERGY TO THE GROUND. Footwear in the ESD line guarantees high electrostatic dissipation in environments with electronically controlled machinery, assembly of microchips or transistors, clean rooms, chemical industries.

> More information on ESD certification

Protection symbol	Requirement/characteristic	Safety footwear (S)
		SB	S1	S2	S3
P	Resistance of the outsole to perforation	0	0	-	X
C	Conductive properties	0	-	-	-
A	Anti-static properties	0	X	X	X
	Insulation against electricity	0	-	-	-
HI	Insulation against heat	0	0	0	0
CI	Insulation against cold	0	0	0	0
E	Heel energy absorption	0	X	X	X
WR	Water resistance	0	0	0	0
M	Toe protection	0	0	0	0
AN	Ankle protection	0	0	0	0
WRU	Water penetration and absorption of the upper	0	-	X	X
CR	Resistance of the upper to cutting	-	-	-	0
HRO	Resistance to heat for sole contact	0	0	0	0
FO	Resistance of the sole hydrocarbons	0	X	X	X
SRA (Ceramic + detergent) or SRB (steel + glycerine)	Slip resistance	X	X	X	X
SRC (SRA+SRB)	Slip resistance	0	0	0	0

X = Compulsory requirement | 0 = Optional requirement added to compulsory ones, if indicated on marking | - = Additional requirement