Standard Specification for Performance Requirements for Foot Protection
ASTM F2413 covers the minimum design, performance, testing, labeling, and classification requirements, and prescribes fit, function, and performance criteria for footwear designed to be worn to provide protection against a variety of workplace hazards that can potentially result in injury. Replacing the specification ANSI Z41, ASTM F2413 covers performance criteria for a wide range of footwear. OSHA incorporates this reference standard in (CFR) 1910.
For each performance requirement (below), three tests are administered (per ASTM F2412: Footwear Test Methods). The test with the lowest score is the test result applied to the footwear classification.
Footwear need not meet all of the below requirements to conform to ASTM F2413, but should clearly state which of the requirements the footwear meets. Requirements are as follows:
- Impact resistance for the toe area of footwear. While a steel toe is not required, a protective toe cap should be a permanent part of the footwear. Four classifications of impact resistance are listed: Class 75 (2500 pounds) for men, Class 75 for women, Class 50 (1000 pounds) for men, and class 50 for men.
- Compression resistance for the toe area of footwear. Compression resistance is classified the same way as impact resistance: Class 75 (men and women) and Class 50 (men and women).
- Metatarsal protection that reduces the chance of injury to the metatarsal bones at the top of the foot. Footwear should be designed, constructed, and manufactured so that a metatarsal impact guard is positioned partially over the protective toe cap and extended to cover the metatarsal bone area. Metatarsal protection is also identified as Class 50 (men and women) and Class 75 (men and women).
- Conductive properties which reduce hazards that may result from static electricity buildup, and reduce the possibility of ignition of explosives and volatile chemicals.
- Electric shock resistance should protect the heels and toes from a secondary source of electric shock resistance protection to the wearer.
- Static dissipative (SD) properties to reduce hazards due to excessively low footwear resistance that may exist where SD footwear is required. SD footwear should reduce the excess static electricity by conducting the charge (from body) to ground while simultaneously maintaining a high level of resistance to protect the wearer.
- Puncture resistance of footwear bottoms. A puncture resistant plate should be positioned between the insole and outsole and made an integral and permanent part of the footwear.
- Chain saw cut resistance. Footwear should protect the foot area between the toe and lower leg when operating a chain saw.
- Dielectric insulation. Footwear should be designed, constructed, and manufactured to provide accidental insulation if accidental contact is made with electrical conductors or circuits.
- In addition, ASTM F2413 requires that a hazard assessment be conducted in accordance with OSHA 1910.132 and OSHA 1910.136 to determine the requirements that are needed for protective footwear.
Labeling and Identification:
The ASTM F2413 label uses a specific four-line format to identify the type of footwear and the hazards it protects against:
- Line 1: Identifies compliance with ASTM F2413
- Line 2: Identifies gender of user (M/F), and the classification for impact resistance, compression resistance and metatarsal resistance provided.
- Lines 3 and 4: Identifies the specific types of hazards the footwear protects against.
A label should include the components listed in the examples shown below. These examples are taken directly from ASTM 2413:
|TABLE 1 Examples of Marking and Identification
Protective footwear which complies to the performance requirement of F2413 issued in 2005. Footwear worn by female worker which has Class 75 impact resistance; Class 75 compression resistance, and Class 75 metatarsal impact resistance. The outsole and heel of this footwear is made with non-conductive materials, shock resistant.
Protective footwear which complies to the performance requirement of F2413 issued in 2005. Footwear worn by male worker which has Class 50 impact resistance and Class 50 compression resistance. Puncture resistant footwear Footwear which is chain saw cut resistant.
Protective footwear which complies to the performance requirement of F2413 issued in 2005. Footwear worn by male worker which has a Class 75 impact resistance and a Class 75 compression resistance. Footwear is conductive.
From ASTM F2413 – Section 7, Labeling and Identification.
The label must list the requirements the footwear meets, as demonstrated by the examples above. Footwear may protect against nine categories. The protection provided is described on the label using the abbreviation shown below.
- CD – Identifies protection against conductive hazards (5.4).
- EH – Identifies footwear with outsole and heel made of electrical insulation properties; one that is also shock resistant. (5.5).
- SD – Identifies footwear designed to reduce the accumulation of excess static electricity (5.6).
- PR – Identifies footwear designed to be puncture resistant (5.7).
- Mt – Identifies footwear designed to be impact resistant to the top of the foot (metatarsal) (5.3).
- CS – Identifies footwear which provides chain saw cut resistance (5.8).
- DI – Identifies footwear which provides dielectric insulation (5.9).
- I – Impact resistant footwear (class 50 or 75 – described previously).
- C – Compression resistant footwear (class 50 or 75 – described previously).
The numbered section at the end of each description provides a reference to the section in ASTM 2413 that describes the performance requirements a product must meet before it can be labeled as protecting against the specific hazard. It also describes the testing procedure used.
The standard can be purchased and downloaded from the ASTM website at http://www.astm.org/Standards/F2413.htm.