EUROLAB Laboratory offers test and analysis services for safety shoes and provides certification and certification services.
One of the most frequently asked questions about safety footwear: S1, S1P, S2, S3 What is the difference between safety footwear?
What features should this shoe include?
What kind of outsole?
What kind of skin?
What sign?
What additional features can it have?
In this article I will explain technically what to do if you need S1, S1P, S2, S3 safety shoes.
After reading this article, you will be surprised how easy it is to find the perfect product for yourself!
There are a wide variety of products on the market and you have to choose, let me explain what technical specifications are available on the market to find the safety footwear S1, S1P, S2, S3 for your needs.
In general, some average situations where you can distinguish between S1, S1P, S2, S3 safety shoes:
You work indoors, there is no risk of splashing and you need protection for your toes and good breathability? Then you need S1 safety shoes
You work indoors, there is no risk of splashing water and you need protection for your toes, protection against perforation and good breathing? Then you need S1P safety shoes
Do you work outside and need protection for your toes and against water sprays? Then you need S2 safety shoes
Do you work outside and need protection for your toes, need protection against perforation and water sprays? Then you need S3 safety shoes
What other features should I consider for my S1, S1P, S2, S3 safety shoes?
As you can see, the biggest difference between S1, S1P, S2, S3 safety shoes is due to the resistance to water sprays and puncture resistant plates. S1P and S3 are basically S1 and S2 safety shoes with an additional puncture resistant plate.
When choosing your safety shoes, first of all you need to know an explanation from the norms. S1, S1P, S2, S3 safety footwear follow the UNI EN ISO 20345 standard:
UNI TS EN ISO 20345 = Personal Protective Equipment - Safety shoe specifications for general use. Wearing at your fingertips, this shoe protects the user from the 200J's protection and breakage impacts against at least the 15 kN pressure load.
1 S1, S1P, S2, S3 safety footwear features:
1.1 S1 safety shoes, SB shoes plus:
The 1.2 S1P safety shoe is an S1 shoe;
1.3 S2 safety footwear has the basic features of SB shoes:
1.4 The S3 safety shoe is an S2 shoe;
If the 2 S1, S1P, S2, S3 safety shoe has additional features, it may contain some other markings.
The most common stool types used in 3 safety shoes are:
The most common types of leather used for 4 safety shoes are:
5 SLIP RESISTANCE:
Features S1, S1P, S2, S3 safety footwear include:
All class I shoes.
The S1 safety shoe has the plus basic features of the SB shoe:
Closed seat area
Antistatic properties (including “A” mark)
Energy absorption of seat area (including “E” mark)
Fuel resistance
The S1P safety shoe is an S1 shoe;
Penetration resistance (including “P” mark)
The S2 safety shoe has the plus basic features of the SB shoe:
Closed seat area
Antistatic properties (including “A” mark)
Energy absorption of seat area (including “E” mark)
Fuel resistance
Water penetration and absorption
The S3 safety shoe is an S2 shoe;
Penetration resistance (including “P” mark)
Cleated sole
If the S1, S1P, S2, S3 safety shoe has additional features, it may contain some other markings.
Mainly needed in special business applications:
AN = Ankle protection (≤ 10 kN). The average value of the test result shall not exceed 10KN and no single value shall exceed 15KN.
CI = Cold insulation of the outsole (test at -17ºC). When tested, the temperature drop on the upper surface of the soleplate should not exceed 10ºC.
CR = Cut-out resistance (≥ 2,5). The cut protection is provided by operating several Kevlar layers between the liner and the top. Such shoes shall have a permanent protective material of at least 3 cm height from the foot cap to the heel to the end of the shoe.
ESD = D lectro S with Tatic D dispersion (100 K between Q and 35 MQ). ESD shoes (electrostatic discharge) is not primarily to protect the person rather than to protect them with the dissolution of E lectro S Tatic D ensitive devices in sensitive work areas (ESDS) (EPA = Electrostatic Protection Areas).
HI = Thermal insulation of the outsole (test at 150ºC). When tested, increase the temperature on the upper surface of the sole after 30 minutes. It should not be greater than 22ºC. After testing, the outsole should not cause any damage that may affect the regular use of the shoe and its performance. The insulation must not be removed from the shoe.
HRO = Resistance to hot contact of the outsole (test at 300ºC). When tested, rubber and polymeric surfaces must not melt or break when bent
M = Metatarsal protection, only for EN ISO 20345. The minimum clearance in impact must be 41 / 42 size ≤ 40 mm. It must be fixed to the shoe and not removed. In the event of an impact, care must be taken to distribute the resulting forces on the sole, the cap, and on a surface as large as possible.
WR = Water resistance (for S2 and S3). The total wetted area in the shoe will be tır 3cm² when tested.
Now let's look at some of the construction features for your S1, S1P, S2, S3 safety footwear.
What kind of outsole do you need? What kind of skin? What about slip resistance?
The most common stool types used for safety footwear are:
PU MONO (SINGLE) DENSITY: It is a material with very low weight and good comfort. It has good resistance to chemicals and oils, but not to strong acids. Temperature resistance is the maximum 10 rating from -20 / -130 to + 140. The softness provides a good grip on this material and provides a slip resistance similar to TPU and rubber. RECOMMENDED USE: closed and not very aggressive workplaces.
PU / PU: A double-density profile made of PU. It has good resistance to chemicals and oils, but not to strong acids. Temperature resistance -10 / 20 to 120 max 150 degrees. Soft PU midsole provides good impact absorption and ease of use. RECOMMENDED USE: indoors and outdoors, not really recommended for contact with chemicals.
PU / TPU: Especially robust, abrasion resistant and flexible. TPU therefore provides higher performance: very good level of abrasion resistance, single density PU and rubber as well as slip resistance, flexibility. On average it is more durable than PU and is more resistant to cold from -5 to -20 degrees. Not very resistant to high temperatures: maximum 100 degrees. RECOMMENDED USE: It is not really recommended for contact with indoor and outdoor, cold weather, hot surfaces.
MONO DENSITY RUBBER: extremely robust: temperature resistant from -30 to 300 ° C, difficult to penetrate for sharp objects and resistant to fuels, oils, germs and many chemicals. However, the rubber is heavier than PU and TPU and is less flexible when sent to cold temperatures. Rubber outer surfaces are also known as single density PU and TPU for great slip resistance. RECOMMENDED USE: indoors and outdoors, in contact with oils, chemicals, acids. HRO certified is also recommended for people with hot surfaces. It is a compact and heavy material, so it is not the best option if you need extremely light shoes.
PU / RUBBER: (usually an injection-molded outsole). In this type of shoe, the midsole is made of PU, maintaining the properties of the rubber for the outsole, so that the shoe becomes lighter. In this case, the PU is the weak point in the most demanding situations where rubber performs best. RECOMMENDED USE: indoors and outdoors, in contact with oils, chemicals, acids. If it is HRO certified, it is also recommended for contact with hot floors. It is a compact and heavy material, making it lighter to combine with PU.
EVA / RUBBER: RECOMMENDED USE: indoors and outdoors, for contact with oils, chemicals, acids. If it is HRO certified, it is also recommended for contact with hot floors. It is a compact and heavy material, making it lighter to combine with PU.
The most common types of leather used for safety footwear are:
FULL GRAIN SKIN: On average it is the most breathable, flexible and durable. It has a touch feeling and a very pleasant feeling for the most natural look.
SPRING LEATHER: On average it breathes less, but it is hard and economical. The defects are coated with a PU coating and printed for a better appearance.
NUBUCK LEATHER: Usually comes from grain leather, polished differently sanded, breathable, hard and oil resistant. It looks wicker than whole grain leather, but in most cases it performs almost the same.
SUEDE LEATHER: Usually used for non-water resistant safety shoes, but there are also waterproof products in suede leather. It is very breathable and quite robust. It can be economical or expensive depending on whether it comes from grain or split leather.
SYNTHETIC LEATHER: MICROFIBER: Very light and flexible material. It has very good resistance to soft chemicals and organic acids, in most cases it can be washed at an average degree of 40. It is recommended to be synthetic in the sanitary and food industry. Breathability depends on the quality of the product. Used frequently in sanitary, food and sports safety footwear.
SLIP RESISTANCE:
This is one of the most important features to look for when choosing S1, S1P, S2, S3 safety shoes. Safety shoes are subjected to the slip resistance test according to DIN EN 13287.
At a given pressure, the shoe is pulled along two different surfaces, each coated with a different lubricant. The resulting friction is measured.
SRA = Ceramic tile flooring + Sodium lauryl sulfate NaLS (forward heel slip friction coefficient ≥ 0.28 / forward flat slip friction coefficient ≥ 0.32)
SRB = Steel floor + Glycerin (forward heel slip friction coefficient ≥ 0.13 / forward flat slip friction coefficient ≥ 0.18)
SRC = safety shoe when it passes both tests. SRA + SRB