The new EN ISO 20345 standard introduces significant changes to slip resistance markings, streamlining the classification system while enhancing safety testing realism. Key modifications include abolishing the previous SRA, SRB, and SRC markings in favor of a simplified SB (basic slip resistance) requirement for all shoes, tested on ceramic tiles with detergent. An optional SR marking now denotes superior slip resistance when tested with glycerin on tiles. The testing methodology has also evolved to better simulate natural walking patterns, replacing flat tests with heel-to-toe and toe-to-heel movement simulations. These changes aim to provide clearer, more practical safety information while maintaining rigorous performance standards.
Key Points Explained:
-
Simplified Slip Resistance Markings
- The previous SRA, SRB, and SRC classifications have been eliminated
- All safety shoes must now meet basic slip resistance (SB) on ceramic tiles with detergent
- The SR marking replaces SRB for superior performance, tested with glycerin on tiled surfaces
-
Revised Testing Methodology
- New tests simulate natural walking movements (heel-to-toe and toe-to-heel)
- Replaces previous flat testing approaches
- Provides more realistic assessment of slip resistance in actual working conditions
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Metallic and Non-Metallic Insert Markings
- Metallic inserts (P) maintain existing 4.5 mm point testing
- New non-metallic insert classifications:
- PL: Large 4.5 mm point test
- PS: Small 3 mm point test with 1100 newtons force
- Updated labeling examples: S1PS, S1PL, S3S, S3L for non-metallic; S1P and S3 for metallic
-
Water Resistance Changes
- Wru marking replaced by Wpa (upper resistance to water penetration)
- WR indicates complete water resistance
- New waterproof categories:
- S6: S2 + WR (lacks puncture-resistant sole)
- S7: S3 + WR (includes puncture-resistant sole)
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Other Notable Modifications
- FO marking (sole resistance to hydrocarbons) no longer mandatory
- Remains available as an optional feature
- No longer required for S1, S2, and S3 classifications
These updates reflect an industry shift toward more practical, user-focused safety standards while maintaining rigorous protection requirements. The changes particularly benefit equipment purchasers by providing clearer, more standardized performance indicators that better reflect real-world usage scenarios.
Summary Table:
| Key Change | Previous Standard | New EN ISO 20345 Standard |
|---|---|---|
| Slip Resistance Markings | SRA/SRB/SRC classifications | SB (basic) + optional SR (superior) |
| Testing Methodology | Flat surface tests | Heel-to-toe & toe-to-heel movement simulations |
| Non-Metallic Inserts | Not classified | PL (large) & PS (small) point test options |
| Water Resistance | WRu marking | Wpa (upper) + WR (complete) + S6/S7 categories |
| Hydrocarbon Resistance | FO marking mandatory | FO now optional for S1-S3 classifications |
Upgrade your safety footwear inventory with confidence
As a leading manufacturer producing 20,000+ pairs daily, 3515 Footwear helps distributors and bulk buyers navigate regulatory changes with:
- Future-proof designs meeting all EN ISO 20345 requirements
- Clear compliance labeling with new SB/SR slip resistance markings
- Enhanced waterproof options including S6 and S7 categories
- Custom configurations for metallic/non-metallic insert needs
Request your EN ISO 20345 compliant catalog to see our full range of safety boots with updated testing certifications. Our team can help you select optimal inventory mixes for your market's specific safety requirements.
