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SBP standard: safety shoes - ISO 20345

The EN ISO 20345 Standard is a strict regulatory text on the protective characteristics of work-shoes. It corresponds to the presence of a protective toe cap and anti-slip sole. The additional standard indicates the anti-perforation sole. Indeed, the EN ISO 20345 classification includes classes (SB, S1, S1P…) then optional properties (P, C, HRO…).

The SB class and the complementary property P

Note that class SB contains fundamental requirements which are:

  • The quality and performance of manufacturing materials;
  • The ability to resist abrasion;
  • The resistance to bending and tearing;
  • The water vapor permeability;
  • The non-slip characteristic of the soles.

The indication P does not concern all safety shoes nor all safety trainers. Those bearing the symbol have soles made from steel or another material, but which must be anti-perforation. This optional standard is necessarily associated with S1P and S3.

safety shoes for women and men are manufactured, tested and EN ISO 20345 SBP certified if:

  • They are fitted with protective caps resistant to 200 Joules and 15,000 Newton;
  • They have anti-slip treated soles;
  • The soles also have anti-perforation properties, indicated by the symbol "P".

Types of anti-perforation soles

There are two types of anti-perforation soles, therefore creating resistance to penetration for the feet. But first of all, it must be understood that the sole with the anti-perforation property is placed between two inner and outer soles.

The midsole for the safety shoe is made of steel.

The material is coated steel or stainless steel. The steel sole is thin and invisible when the comfort sole is removed. It is a conductor of heat, cold and electricity. It is recommended for workers exposed to sharp and tiny objects.

Not being very flexible, the steel midsole preserves all the properties of the metal. It does not completely protect the internal area of ​​the shoe, since a few millimeters are not covered on the sides.

The steel sole can be subject to corrosion especially if it has a carbon coating.

The midsole in woven materials

The padded fabric protective sole is generally made of Aramid fibres. It is flexible and light. When removing the comfort insole, it is visible. It does not conduct heat, cold or electricity.

It is dedicated to the worker who works in an environment with a security gate and scanner.

It covers the entire inner part of the shoe. It resists abrasion, temperature and cuts.