When sourcing safety shoes for bulk orders, understanding international certification standards is non-negotiable. Two dominant frameworks govern the global market: EN ISO 20345:2022 (European/International) and ASTM F2413-18 (North American). Each uses different classification systems, and buyers must match specifications to their workplace hazards.
EN ISO 20345:2022 Protection Classes Breakdown
| Class | Toe Protection | Antistatic | Heel Energy | Water Resistance | Perforation Protection | Outsole |
|---|---|---|---|---|---|---|
| SB | 200J basic | No | No | No | No | Standard |
| S1 | 200J | Yes | Yes | No | No | Standard |
| S1P | 200J | Yes | Yes | No | Yes (P/PL/PS) | Standard |
| S2 | 200J | Yes | Yes | WPA | No | Standard |
| S3 | 200J | Yes | Yes | WPA | Yes (P/PL/PS) | Cleated |
| S4 | 200J | Yes | Yes | WR (full) | No | Standard |
| S5 | 200J | Yes | Yes | WR (full) | Yes (P/PL/PS) | Cleated |
| S6 | 200J | Yes | Yes | WPA (enhanced) | No | Standard |
| S7 | 200J | Yes | Yes | WPA (enhanced) | Yes (P/PL/PS) | Cleated |
ASTM F2413-18 takes a different approach. Instead of classes, it uses a code system where each letter represents a specific protection feature. Common codes include: I (Impact 75 ft-lb), C (Compression 2,500 lb), EH (Electrical Hazard 18,000V), PR (Puncture Resistant), and Mt (Metatarsal protection). Buyers must specify exact codes based on job site requirements.
EN ISO 20345:2022 represents a significant evolution from the 2011 version. The mandatory SR slip resistance test now uses ceramic tiles with glycerin—a more realistic simulation of oily workplace floors. Water penetration (WPA) and water-resistant upper (WR) are now separately coded, giving buyers clearer specifications for wet environment work [1].

