This American standard covers the requirements for the safety performance of footwear. It is to provide protection against a variety of workplace hazards.
The S4 classification is the second most stringent category with respect to protective features for safety footwear. These features include slip resistance, antistatic properties, energy absorption of the heel region, resistance to fuel oil and a protective toecap. The boots are tested and certified in accordance with the EN ISO 20345:2011 standard.
SRC certified slip resistancy
The SRC classified boots meet the most stringent requirements for slip resistance and comply to both SRA and SRB. SRA slip resistance is tested on ceramic tile floors covered with a dilute soap solution, while SRB slip resistance is tested on steel floors covered with glycerine. The tests are based on measuring the coefficients of friction in forward heel slip and forward flat slip state. The results provide a good indication of the actual slip resistance of the boots in practice on slippery tile and steel surfaces.
Protective toe cap
The boots feature a protective toecap for offering maximum protection against falling objects. The built-in protective toecap serves to protect the toes from impacts of an energy level of 125 J and a compression at a load of 11121 N (2500lbf).
Dunlop boots with a protective toecap are labelled as Safety.
Purofort® boots prevent heat loss and offer outstanding thermal properties. Due to the unique recipe and molecular structure, all Purofort boots assure excellent cold insulation down to -20 °C. And even down to -50 °C in case of Purofort Thermo+ boots. Purofort boots are classified as CI, meaning that the temperature decrease measured at the upper surface of the insole does not exceed 10 °C after 30 minutes.
By design, the boots offer a perfect fit, optimizing comfort for everyday use.
The boots are 100% waterproof to keep your feet dry under wet and dirty conditions.
Fuel oil resistant
The outsole is resistant against oil, which assures that potentially adverse effects of oily substances on the protective properties of the boots are minimized.
The boots offer protection against a wide variety of chemicals. The specific application with types of chemicals encountered and conditions faced will determine which boot should be opted for.
The boots feature energy absorption of the heel region which limits impact to the foot while walking. The provision of shock absorption capabilities within the footwear minimizes risk of injuries.
- Material boot shaft
- Material outsole
- Color boot shaft
- Color outsole
- Toe cap
- Safety standard Europe
- EN ISO 20345:2011 S4 SRC
- Cold insulation (°C)
- Cold insulation (°F)
- Slip resistant outsole
- Oil resistant outsole
- Chemical resistant code
- Energy absorbing
- Cut resistant
- Heat resistant outsole
- Fuel oil resistant
- Ankle protection
- Electrical insulation