Knowledge What do the letters and numbers in the ASTM F2413-05 marking represent? Decoding Safety Footwear Standards
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Tech Team · 3515

Updated 2 months ago

What do the letters and numbers in the ASTM F2413-05 marking represent? Decoding Safety Footwear Standards

The ASTM F2413-05 marking is a standardized code that specifies the protective capabilities of safety footwear. The "F2413" refers to the ASTM standard number for foot protection, while "05" indicates the year the standard was published (2005 in this case). The letters "M" or "F" denote whether the footwear is designed for male or female use. Additional codes like "I/75" and "C/75" represent the footwear's impact and compression resistance ratings, respectively, with the numbers indicating the minimum performance thresholds in foot-pounds or pounds-force.

Key Points Explained:

  1. ASTM F2413:

    • This is the standard number issued by ASTM International, specifically addressing performance requirements for protective footwear.
    • It defines test methods and criteria for safety features like impact resistance, compression resistance, metatarsal protection, and electrical hazard resistance.
  2. -05 (Year of Standard):

    • The suffix "-05" signifies the year the standard was last revised or published—in this case, 2005.
    • Later revisions (e.g., F2413-11, F2413-18) may include updated testing protocols or additional safety criteria.
  3. Gender Designation (M/F):

    • M: Footwear designed for male wearers, typically reflecting larger sizing and last shapes.
    • F: Footwear engineered for female wearers, often with narrower profiles and adjusted proportions.
    • This distinction ensures ergonomic fit and comfort, though unisex designs may omit this marker.
  4. Performance Ratings (I/75, C/75, etc.):

    • Impact Resistance (I/75):
      • The "I" stands for impact protection, tested by dropping a 50-lb weight from a specified height.
      • The number (75) indicates the minimum resistance threshold (75 foot-pounds of energy).
    • Compression Resistance (C/75):
      • "C" denotes compression resistance, tested under a static load (e.g., 2,500 lbs).
      • The number (75) correlates to 75,000 pounds of compressive force the footwear must withstand.
    • Other codes (e.g., Mt for metatarsal protection, EH for electrical hazard resistance) may appear if applicable.
  5. Additional Markings (Optional):

    • Some labels include symbols for puncture resistance (PR), static dissipation (SD), or conductive properties (CD).
    • These are added only if the footwear meets supplementary ASTM test criteria.

Understanding these markings helps purchasers select footwear tailored to workplace hazards, ensuring compliance with OSHA or industry-specific safety regulations. For example, construction workers might prioritize I/C ratings, while electricians need EH-rated shoes. Always verify the latest ASTM revisions to align with current safety standards.

Summary Table:

Marking Meaning
ASTM F2413 Standard for protective footwear performance (impact, compression, etc.).
-05 Year of the standard’s publication (2005).
M/F Gender designation (Male/Female) for ergonomic fit.
I/75 Impact resistance: withstands 75 ft-lbs of force.
C/75 Compression resistance: handles 75,000 lbs of static load.
Mt/EH Optional codes for metatarsal protection (Mt) or electrical hazards (EH).

Ensure Compliance and Worker Safety with the Right Protective Footwear

Understanding ASTM F2413-05 markings is critical for selecting footwear that meets OSHA and industry safety requirements. Whether you need impact-resistant boots for construction crews or electrical hazard-safe shoes for utility workers, 3515—a leading large-scale manufacturer—delivers rigorously tested, standards-compliant footwear for distributors, brands, and bulk buyers. Our extensive range covers all safety needs, from heavy-duty industrial boots to specialized EH-rated designs.

Why Choose 3515?

  • Certified Protection: All footwear meets or exceeds ASTM/OSHA standards.
  • Bulk Customization: Tailor sizing, materials, and safety features for your workforce.
  • Global Supply Chain: Reliable production capacity for large orders.

Contact us today to discuss your safety footwear requirements or request a catalog!

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