Steel-toe boot

A pair of well-worn steel-toe shoes
A pair of ISO 20345:2004 compliant S3 safety boots

A steel-toe boot (also known as a safety boot, steel-capped boot or safety shoe) is a durable boot or shoe that has a protective reinforcement in the toe which protects the foot from falling objects or compression, usually combined with a mid sole plate to protect against punctures from below.

Although traditionally made of steel, the reinforcement can also be made of a composite material, a plastic such as thermoplastic polyurethane (TPU) or even aluminum. Steel-toe boots are important in the construction industry and in many industrial settings. Occupational safety and health legislation or insurance requirements may require the use of such boots in some settings, and may mandate certification of such boots and the display of such certification directly on the boots. The markings on the boot label will indicate the national or international standards that the boot was intended to meet, and identify the level of protection offered for impact, penetration, electric shock, and chemical hazards. Footwear for use in chemical processing or semiconductor manufacturing may also be rated to dissipate static electricity while still protecting the wearer from electric shock.

Safety footwear now comes in many styles, including sneakers and clogs. Some are quite formal, for supervising engineers who must visit sites where protective footwear is mandatory.

Some brands of steel-toe footwear have become fashionable within subcultures such as skinhead, punk, and rivethead. While brands that were previously renowned within the fashion industry have also diversified into the safety footwear market, industrial brands like Caterpillar, Rock Fall and JCB have also issued licenses to produce safety footwear.

Safety criteria

Most safety shoes have symbols on the outside, to indicate the protection that the shoe offers. Examples are:

United States

In the United States, the applicable standard for protective footwear is ASTM standards F 2412-05, Standard Test Methods for Foot Protection and ASTMF 2413-05, Standard Specification for Performance Requirements for Foot Protection.

OSHA requires compliance of ANSI Z41.1-1991, "American National Standard for Personal Protection-Protective Footwear," if purchased after July 5, 1994,[1] or ANSI standard "USA Standard for Men's Safety-Toe Footwear," Z41.1-1967.[2] if purchased before.

California has updated its regulations with the new 2005 ASTM standards F 2412-05, Standard Test Methods for Foot Protection and ASTM F 2413-05, Standard Specification for Performance Requirements for Foot Protection.[3]

Canada

The Canadian Standards Association (CSA) have been using symbols on safety footwear for more than 30 years., published in CSA standard Z195. Each shape & color represents specific safety criteria for all safety footwear and apparel purchased in Canada. [4]

Generally, a safety shoe is a shoe that follows at least one of five criteria. The criteria that a safety shoe adheres to can be found by looking for the CSA (Canadian Standards Association) alphanumerical code found inside the shoe. This code is made up of a combination of 5 different symbols:

(CSA) green triangle and orange electrical safety tags
  1. The first code indicates if the shoe has a steel-toe cap (a metal shell embedded on top of the toes part of the shoe). "0" means there is none. "1" means that there is, and it resists an impact of 125 joules (22.7 kg object falling from 56 cm above). "2" means that it resists an impact of 90 joules.
  2. The second code indicates if the shoe has soles that protect the arches of the feet from punctures. "P" means it does. "O" means it doesn't.
  3. The third code indicates if the shoe has a metatarsus protection against shocks and collisions. "M" means it does. "O" doesn't.
  4. The fourth code indicates the shoe's electrical properties. "E" means it resists electrical shocks. "S" means it disperses static electrical. "C" means it conducts electricity.
  5. This last code is found only on shoes that protect the foot from chainsaws, i.e. chainsaw boots. "X" it does, "O" does not.

Europe

A pair of ISO 20345:2004 compliant A anti-static shoes
A pair of ASTM 2412-2413 compliant S3 safety shoes
A pair of ISO 20345:2004 compliant S3 HRO HI CI FPA safety boots for firefighters
Several types of traditional Dutch whole feet clogs are ISO 20345:2004 compliant S3 safety shoes.

The International Organization for Standardization provides the European standard for Safety footwear. The current one is ISO 20345:2011[5] - previously ISO 20345:2004.[6]

The codes applicable to European safety footwear are:

Protected Area Type of Protection Code
Steel Toe Basic Impact 200 joules including compression 15,000 newtons SB
200 joule toecap protection. Closed seat region (fully enclosed heel). Antistatic properties. Energy absorption of seat region. S1
200 joule toecap protection. Closed seat region (fully enclosed heel). Antistatic properties. Energy absorption of seat region. Water penetration and water absorption resistance. S2
200 joule toecap protection. Closed seat region (fully enclosed heel). Antistatic properties. Energy absorption of seat region. Water penetration and water absorption resistance. Sole penetration resistance. Cleated outsole. S3
Additional protections Heat Resistant Outsole: shoe sole resistance to hot contact up to 300 °C HRO
Penetration resistance offered by a steel midsole: 1100 newtons P
Heel energy absorption: 20 joules E
Water penetration-resistant uppers WRU
Electrical resistance Conductive: Maximum resistance 100 kΩ O
Antistatic: Range of 100 kΩ to 1000 MΩ A
Hostile environments Cold Insulated: shoe insulated against cold CI
Heat Insulated: shoe insulated against heat HI

There is also EN ISO 20346:2004 [7] for protective footwear (must comply to basic safety requirements but toe cap impact resistance requirement is lower - 100 Joules) & EN ISO 20347:2004 [8] for Occupational Footwear (must comply to basic safety requirements with anti static or slip resistant properties. This standard does not require a protective toe cap)

Asia

Safety shoe standards in Asia are :

Australia / New Zealand

Use as a weapon

Steel-toe boots have been used in assaults, such as the attack on Josie Lou Ratley, a Florida teenager.[9] Nightclubs and other entertainment venues frequently include a "no steel toecaps" rule as part of their dress code to mitigate the possibility of serious injury to other patrons if the wearer becomes violent. Use of bovver boots in football hooliganism was countered by warnings to fans that they would have to remove such boots in order to attend football matches.[10]

See also

References

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