Types and classification of safety footwear according to EN ISO 20345:
There are many criteria for dividing footwear designed for work. It can be broken down by model, use or hazard level.
Taking into account the level of hazards which footwear should protect from we distinguish:
- safety footwear (S) – EN ISO 20345 – the toe cap of the shoe withstands impact with energy of 200 J and crushing to 15 kN.
- occupational footwear (O) – EN ISO 20347 – designed for everyday use where it is not necessary to protect toes with toe caps. Such footwear is often referred to as work footwear.
In accordance with the above standards, both safety and occupational footwear should be classified as follows:
- Category I – Footwear made of leather or other materials, excluding all rubber and all plastic footwear
- Category II – All rubber (i.e. completely vulcanised) or all plastic (i.e. completely moulded) footwear.
Category I:
- SB – Energy absorption by a metal toe cap which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents.
- S1 – Energy absorption by a metal toe cap which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents; slip resistance, closed heel area, energy absorption in the heel, antistatic properties.
- S2 – Energy absorption by a metal toe cap which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents; slip resistance, closed heel area, energy absorption in the heel, antistatic properties, resistance to moisture absorption and water penetration.
- S3 – Energy absorption by a metal toe cap which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents; slip resistance, closed heel area, energy absorption in the heel, antistatic properties, resistance to moisture absorption and water penetration, cleated outsole, penetration resistance.
Category II:
- S4 – Metal toe cap (toe protection) which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents; slip resistance, encased heel, energy absorption in the heel, antistatic properties.
- S4 – Metal toe cap (toe protection) which withstands impact with energy of 200 J and crushing up to 15 kN; resistance to oils, petrol and other organic solvents; closed heel, energy absorption in the heel, antistatic properties, penetration resistance, cleated outsole.
Symbols used to indicate the individual characteristics of footwear:
P – penetration resistance
A – antistatic footwear
C – electro-conductive footwear
I – electrically insulating footwear
HI – bottom heat insulation
CI – bottom cold insulation
E – energy absorption around heel
WR – water resistance
M – metatarsal protection
AN – ankle protection
WRU – water penetration and water absorption upper
CR – resistance to cutting of the upper layer
HRO – heat resistance of outsole (300°C/min)
FO – resistance of the outsole to contact with oil fuels
SRA – slip resistance of the bottom on a ceramic tile substrate covered with sodium lauryl sulfate solution
SRB – slip resistance of the outstole on steel floors with glycerol
SRC – slip resistance of the outsole on ceramic tile floors with sodium lauryl sulfate solution and on steel floors with glycerol
Under applicable law, occupational footwear must be supplied to the employee free of charge, and the usage period of the shoes must be determined in consultation with the employer. Remember that footwear remains the property of the employer, who is obliged to ensure proper maintenance and decontamination, and if possible washing of the footwear. Alternatively, the user of the shoes may do so, but the employer is obliged to pay a cash equivalent equal to the costs incurred by the employee.
The supply of occupational workwear or the use of one’s own shoes as occupational footwear, in turn, imposes an obligation on the employee to use them. The employer has the full right, and in fact a duty, to prevent a person who does not have adequate personal protective equipment from entering the workplace.