Basic requirements (extract) EN ISO 20345 EN ISO 20347 Slip resistance (SRA, SRB or SRC) Energy absorption of the toe cap SB 200 joule OB - Additional requirements EN ISO 20345 EN ISO 20347 Closed heel Antistatics Energy absorption in the heel S1 O1 Like S1 Plus water penetration and absorption S2 O2 Like S2 Plus penetration protection and profiled outsole S3 O3 Requirements (Extract of the standard) Symbols SB S1 S2 S3 OB O1 O2 O3 Basic requirements Shoes completely assembled Toe protection (200 joule) ● ● ● ● Slip resistance (SRA, SRB or SRC) ● ● ● ● ● ● ● ● Additional requirements Shoes completely assembled Penetration protection P ○ ○ ● ○ ○ ● Antistatic shoes A ○ ● ● ● ● ● ● ● Energy absorption capacity in the heel E ○ ● ● ● ● ● ● ● Heat insulation of the sole complex HI ○ ○ ○ ○ ○ ○ ○ ○ Cold insulation of the sole complex CI ○ ○ ○ ○ ○ ○ ○ ○ Shoe upper material Water penetration and absorption WRU ○ ○ ○ ○ ○ ○ ○ ○ Outsole Behavior towards contact heat HRO ○ ○ ○ ○ ○ ○ ○ ○ Fuel resistance FO ● ● ● ● ○ ○ ○ ○ Labeling of professional footwear DIN EN ISO 20345:2011 valid since December 2011 DIN EN ISO 20347:2012 valid since February 2012 ● fulfills the prescribed requirements ○ requirement can be fulfilled, but is not prescribed © Compumet AG 2023 | www.compumet.ch 157
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