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Safety Footwear Ratings - The Ultimate Guide

Style and colour may be your first thoughts when choosing new safety boots or shoes, but it should be the fit, suitability for your job and the protection standards (aka: Safety Footwear Ratings) that are at the forefront of your mind.

Hopefully this guide to the standards, classifications, ratings and codes for safety footwear will help you make the right choices that give you the correct level of protection for your feet, whatever job you do.

Keep reading to learn all about the footwear PPE safety standards and find some tips to make it nice and easy to find the right protective footwear for your requirements.

PPE Regulations – What You Need to Know

All forms of PPE, from head to toe, are covered and described by the Personal Protective Equipment (PPE) at Work Regulations 1992. An update was made in 2002, and another update happened in 2011.

It is an employer's responsibility to keep employees safe, which includes providing PPE and any other safety equipment workers may need. This includes safety footwear.

Click HERE for a brief downloadable guide on PPE from the Health & Safety Executive.

Safety Standard EN ISO 20345:2011... What does it mean?

Image of a confused man
What?

The safety footwear standard EN ISO 20345:2011 is not as complicated to understand as it first appears, and it specifies the basic/additional safety footwear requirements to meet the standard.

Let's break it down...

  • EN - This is the current applicable standard across Europe
  • ISO - All footwear PPE products must meet the minimum safety standards as defined by the International Organization for Standardization.
  • 20345 - This is the assigned legislation number.
  • 2011 - This is the year the safety standard around footwear was updated. It now requires that safety footwear must now protect against a 200 Joule impact at the toes before failing.

Safety Footwear Abbreviations & Codes You Should Look Out For

There is an array of foot protection in the form of boots or shoes available apart from the standard toe-cap. For instance, some PPE foot protection are anti-static, some ECD (Electro-Static Discharge) resistant, some footwear offers protection for the metatarsal, some have steel plates in the sole to prevent penetration, some prevent cuts (have you ever seen a chainsaw-proof boot? Incredible!).

As is usual in PPE and Health & Safety, codes and abbreviations are used to describe these features. See the table below for a non-exhaustive list that is sure to grow with time.

CodeMeaning
AAnti-static
ANAnkle Protection
CConductive
CICold Insulation
CRCut Resistant Upper
EEnergy Absorption
FOFuel/Oil Resistant Outsole
HIHeat Insulation
HROOutsole is Resistant to Hot Contact
IElectricity Insulated
MMetatarsal Protection
PPenetration Resistance
WRWater Resistance
WRUWater Penetration and Water Absorption Resistant Upper

What are the Safety Boot Ratings?

The above codes are very specific, but the level of protection a boot or shoe gives has a clear system of ratings which combine many of the above codes. These are known as "S ratings" and you are probably already familiar with some of them: S1, S2, S3 Safety boots are very common terms...

This table lays out the 6 safety boot/shoe ratings - an explanation of each is below. Click on the rating to jump directly to it's full explanation.

RatingMeaning
SBSafety Basic (Has Toe Protection)
SBPAs SB with additional Mid-Sole protection against penetration
S1Anti-Static, Oil-Resitant and Energy Absorption
S1PAs S1 with additional Mid-Sole protection against penetration
S2Prevents Water Penetration
S3Midsole Penetration Resistance
S4Leak-Proof
S5Leak-Proof with Midsole Penetration Resistance

What do the Safety Boot ratings mean?

Please Note: After SB, the standards feature all the SB basics, but have extra protection or features.

  • SB - Safety Basic - This is the basic standard for safety footwear and must have toe protection that can withstand a 200 Joule impact. There can be (and most likely will be) other standards alongside the SB which will appear as other symbols as mentioned above. EG: SB-FO would have the basic standard of safety toe-cap, but also features a Fuel/Oil Resistant Outsole.
  • SBP - This is the same as the basic standard for safety footwear but includes a mid-sole plate (steel, or composite material) to protect the foot against penetration.
  • S1 - S1 footwear is anti-static, resistant to fuel oil and features energy absorption at the heel. As with SB, other symbols can be added, EG: S1-HI would be an S1 shoe or boot, but is also insulated against heat.
  • S1P - S1P footwear the same as S1 footwear but including a steel or composite plate in the Mid-Sole to protect against penetration from under foot.
  • S2 - S2 footwear has all the aspects of S1 footwear, but adds prevention of water absorption for the upper. Again, codes can be added as they are with S1 and SB.
  • S3 - You will find the same safety elements as contained in S2, plus a penetration resistant midsole. Again, codes can be added as they are with S2, S1 and SB.
  • S4 - An S4 boot encompasses the same level of protection as an S1, however it is moulded from a polymer or rubber that makes them completely waterproof and leak-proof. A safety welly would be S4 at the least, and other codes can be added when the boot achieves other safety standards.
  • S5 - S5 gives you all the safety footwear features of the S4, plus midsole penetration resistance.

The Non-Slip/Anti-slip Footwear Standards

Slips account for a huge percentage of workplace accidents, so it is absolutely vital that there are separate safety standards so workers and employers can rate the slip-resistance of safety footwear.

Slipping is measured using 2 different lubrication mediums on 2 different surfaces, or both, using a "Pendulum Slip Test" system - a type of "Tribometer": a tool that measures the tribological quantities of the interacting surfaces in relative motion... Friction... it measures friction.

Here are the 3 standards

RatingTest Medium
SRASlip resistance is tested on ceramic tile which has been saturated with Sodium Lauryl Sulphate (the active ingredient in soap)
SRBSlip resistance is tested on Steel plate which has been saturated with Glycerol
SRC Slip resistance is tested and passed against the same conditions as SRA and SRB

What Are the Best Safety Shoes for Me?

Knowing the safety standards and the conditions you will be working in is the first step to buying the correct safety boots or safety shoes for you. You could stop reading here and still make an informed choice - but there are other practicalities you should probably think about.

Here are some extra tips before you buy...

Comfortable Footwear is Key to Productivity

Have you ever trudged through mud in the garden, walking the hills or at a festival? The added weight on your feet makes every step more difficult and the consequence is pure misery.

That is not conducive to a good day at work!

More and more lightweight safety footwear is becoming available. No longer are the ugly old Miners external steel toe-caps the only solution to foot protection (infact, those aren't even legal anymore and you should not be able to find them).

Modern technology has leapt forward allowing such trends as safety trainers, high protection wellington style boots, cut-resistance and all manner of other specialist foot protection - without compromising on comfort, flexibility and *ahem* style.

Ensure You Get The Correct Level of Protection

Now you know what all the safety footwear ratings, standards and codes mean, you have no excuse for getting the wrong level of protection for your working environment.

Toe-protection is the minimum requirement for footwear to be classed as "safety", but there is a good chance you may require more.

Consider the work you do and the environment you do it in. Construction workers will definitely need the minimum of a toe-cap, but you would be wise to consider mid-sole protection too - just in case someone leaves a nail protruding from a 2 by 4 - not to mention ankle support for uneven ground (that is why Rigger Boots are not really suited for building sites).

If you work with fuels or inflammables/flammables, you should use an anti-static and Fuel/Oil resistant footwear.

Working with electricity? You should consider electrical-resistant footwear.

Working with heat hazards? You would need a HRO boot.

Work with Food, in a Medical Lab or Clean Room? You will probably need a safety shoe that is Slip-Resistant, Washable and White.

Are you or your employees Vegan? No seriously... there are Vegan safety trainers, and you might need to consider this if any of your employees are vegans.

The list goes on, but you get the jist.

Get the Correct Size and Fit

It is likely you will be spending your entire working day in these boots or shoes, so it is essential that they fit your feet properly.

Everybody is different, so it might be that in order to get the right level of protection that fits you properly, you might need to forgo those all singing, all dancing über-boots that impress your mates, for something more conservative looking, yet correct.

Don't be afraid to invest in some good quality insoles to improve your comfort either.

Absolutely NEVER buy second hand safety footwear

Do we really need to explain this?

The only way you can be certain of the history of a piece of safety equipment is if you buy it new. Buying second hand opens you up to so much risk that it is simply not worth it.

You need your toe protection to withstand the 200 Joules it is designed to withstand. If you do not know the history of the footwear, you will not know if that 200 Joules has already been exceeded and the protection rendered useless.

Nobody wants to find out there is a broken toe-cap whilst a forklift runs over their foot.

And the price ranges of footwear with differing safety specs really does mean you have no excuse to buy new.

Look After Your Footwear and Your Footwear Will Look After You

It is the same with all your PPE to be honest - your boots and shoes can only take so much abuse before they fail. So the best thing to do is protect them like they protect you. They will last much longer too, saving you money in the long-run.

  • If they get muddy, clean them.
  • If they are wet, dry them naturally.
  • Use laces properly (don't slip them on and off and stretch them).
  • Store them carefully, don't let them rattle around in the back of the van.
  • Invest in some Dubbin for leather boots or shoes

And most importantly, if you have an incident where the protection level may have been compromised, CHECK your footwear thoroughly for any failures. If in doubt, replace them immediately.

You need your feet.

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