Standard EN ISO 20345

The EN ISO 20345 standard specifies basic and additional requirements for safety footwear. Baak safety shoes are naturally manufactured in accordance with the specifications of EN ISO 20345 and therefore offer the wearer the highest possible level of protection.

Safety shoes in accordance with EN ISO 20345 protect the wearer from bumps, pinching, falling objects, the penetration of sharp objects and heat or cold.

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Standard EN ISO 20345:2022

The most important changes to EN ISO 20345:2022 at a glance

Amendment to standards 2022

All changes at a glance

Previously, the slip resistance test had to pass either SRA (test of cleaning agent on tile) or SRB (test of glycerine on steel).

The "SRA" label will no longer exist in the future; this test will now become a basic requirement for all safety shoes, and every safety shoe will have to pass SRA in the future.

For special requirements, however, it is now also possible to dispense with slip resistance tests, in which case the shoes must be marked with Ø. The "SRB" requirement (glycerine/oil on steel) is no longer applicable.

A new additional requirement will be the glycerine/oil on tile test, which will then be labeled "SR".

In future, the puncture resistance of textile material can be tested with 2 different nails. One with a thick nail with a diameter of 4.5 mm and one with a thin nail with a diameter of 3 mm. The manufacturer can decide which test he wants to certify.

Nothing changes for steel midsoles. This change also means that there are new markings for shoes with puncture resistance.

For S3: 

  • S3 (metallic puncture resistance)
  • S3L (textile puncture resistance) with thick (Large) nail tested
  • S3S (textile puncture resistance) with thin (Small) nail tested

For S1 then correspondingly for metallic puncture resistance S1P, with textile puncture resistance then analogously S1PL or S1PS.

The textile penetration resistance we use meets the requirements for both S and L, but as only one marking is possible, we mark our penetration-resistant shoes with S.

The designation WRU (Water Resistant Upper) is changed to WPA (Water Penetration and Absorption)

The background to this is that the name is misleading. It is not the water-repellent properties of the upper that are tested (which is what WRU means), but the water penetration and absorption of the material (WPA).

  • Category S2 shoes that are waterproof are now category S6 (formerly S2 WR)
  • Category S3 shoes that are waterproof are now category S7 (formerly S3 WR)

In the old standard, FO was part of S1, S2, S3 etc. This is no longer the case.
FO is now an additional requirement, such as HRO.

This means that S1 shoes with oil- and petrol-resistant soles are labeled as S1 FO. 

The new standard includes the new SC requirement for overcaps.
This refers to additional materials that are applied to protect the cap area.

Frequently used, foamed overcaps, due to This does not refer to a raised midsole and cannot be certified as SC.

The cap must not have a hole after 8000 abrasion cycles.

Also new is the additional requirement LG, which describes the design of the heel and the joint area to ensure a secure hold on ladders.

Orthopaedic changes to the shoe are now part of the standard, and a distinction is made between 3 types.

  • Type 1: Equipped with insoles
  • Type 2: Finishing in the shoe base
  • Type 3: Custom-made safety shoes

There is no corresponding marking on the shoe.

Additional requirementsIcon
Complete shoe
PPassage inhibition
CConductive shoes
AAntistatic shoes
HIThermal insulation
CICold insulation
EEnergy absorption capacity in the heel area
WRWatertightness
MMetatarsal protection
ONAnkle protection
SRSlip resistance: oil on tile
Shoe upper
EPAWater penetration and absorption
CRCut protection
SCAbrasion-resistant overcap
Outsole
LGHold on to ladders
HROBehavior towards contact heat
FOOil and gasoline resistance

EN ISO 20345:2011

CategoryBasic requirementAdditional requirement
SB
S1Closed heel area, antistatic, energy absorption capacity in the heel area
S2As S1, plus water penetration and absorption of the upper part of the shoe
S3Like S2, additional penetration resistance, profiled outsole
Safety shoes EN ISO 20345:2011S1S2S3
Basic requirement
Closed heel area
Fuel resistance of the sole
Antistatic properties
Energy absorption capacity in the heel area
Water penetration/absorption
Penetration safety
Profiled outsole
IconRequirement/propertyRequired protection
PPenetration resistance of the outsole↑ 1100 N
EEnergy absorption in the heel area↑ 20 joules
AAntistatic shoeBetween 0.1 and 1000 MΩ
CConductive shoes↓ 0.1 MΩ
WRWaterproofness of the entire shoe
WRUWater penetration and absorption of the upper material↑ 60 min.
HIThermal insulationTest at 150 °C
CICold insulationTest at -20 °C
HROBehavior towards contact heatTest at 300 °C
MMetatarsal protection
ONAnkle protection
CRCut resistance
SRASlip resistance on ceramic tiles/cleaning agents
SRBSlip resistance on steel plate/glycerine
SRCSRA + SRB

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