BASIC REQUIREMENTSEN ISO 20345EN ISO 20347

slip resistance (SRA, SRB, or SRC)

SBOB

energy absorption of toe cap

200 joules-
ADDITIONAL REQUIREMENTS

closed heel area // antistatic // energy absorption of heel area

S1O1

the same as for S1/O1 // plus water penetration and water absorption

S2O2

the same as for S2/O2 // plus penetration resistance and cleated outsole

S3O3

! EN ISO 20345:2011 valid since December 2011 !
! EN ISO 20347:2012 valid since February 2012 !

Requirements
(Extract from the standards)
SBS1S2S3OBO1O2O3
BASIC REQUIREMENTS







toe protection (200 joules) 
slip resistance (SRA, SRB or SRC)
ADDITIONAL REQUIREMENTS






penetration resistance (P)

antistatic property (A)
energy absorption of heel area  (E)
heat insulation of the outsole (HI)
cold insulation of the outsole (CI)
UPPER







water penetration and water absorption (WRU)

OUTSOLE







reaction on contact heat (HRO)
fuel resistance (FO)