The EN ISO 20345:2022 standard introduces significant changes to slip resistance markings, streamlining previous classifications while raising baseline requirements. All safety shoes must now meet basic slip resistance on ceramic tiles with detergent, eliminating the previous SRA/SRB/SRC system. An optional SR marking indicates superior performance when tested with glycerin. The standard also introduces new classifications for non-metallic penetration resistance (PL/PS) and makes some previously mandatory features optional. These changes reflect a more realistic approach to workplace hazards, with updated testing methods that simulate natural walking motions rather than static flat tests.
Key Points Explained:
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Elimination of SRA/SRB/SRC Markings
- The previous three-tier slip resistance classification (SRA, SRB, SRC) has been completely abolished
- All safety shoes must now meet a baseline slip resistance requirement on ceramic tiles with detergent solution
- This change simplifies compliance while ensuring all certified footwear meets minimum safety thresholds
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New SR Marking for Enhanced Slip Resistance
- An optional SR marking indicates shoes that pass additional testing with glycerin on tiled surfaces
- Glycerin testing represents more challenging conditions than the baseline detergent test
- Manufacturers can differentiate products by achieving this voluntary higher standard
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Revised Testing Methodology
- Tests now simulate natural walking movements (heel-to-toe and toe-to-heel) instead of flat surface tests
- This change makes results more reflective of real-world usage scenarios
- The updated methods better account for dynamic friction during actual workplace movements
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Penetration Resistance Markings Update
- Metallic inserts (P) maintain existing 4.5 mm point testing requirements
- Non-metallic inserts now have two classifications:
- PL: Large 4.5 mm point test (same as metallic)
- PS: Small 3 mm point test with 1100N force
- New labeling conventions include combinations like S1PS, S1PL, S3S, or S3L
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Optional Feature Changes
- Toecap abrasion resistance (SC) and ladder grip (LG) are newly optional features
- Fuel resistance (FO) changed from mandatory to optional requirement
- These modifications give manufacturers more flexibility in specialized product development
The updated standard represents a significant evolution in safety footwear certification, with particular attention to making slip resistance testing more representative of actual working conditions. Purchasers should note these changes when specifying or evaluating safety shoes for their workforce.
Summary Table:
| Key Change | Description | Impact |
|---|---|---|
| Elimination of SRA/SRB/SRC | Replaced with baseline slip resistance requirement on ceramic tiles with detergent | Simplifies compliance while ensuring minimum safety |
| New SR Marking | Optional marking for superior performance with glycerin testing | Allows manufacturers to differentiate products |
| Revised Testing Methodology | Simulates natural walking movements instead of flat surface tests | More reflective of real-world usage |
| Penetration Resistance Markings | New PL/PS classifications for non-metallic inserts | Provides clearer differentiation of protection levels |
| Optional Feature Changes | SC, LG, FO features now optional | Gives manufacturers more flexibility |
Ensure your workforce has the safest footwear available!
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