The new EN ISO 20345 standard introduces several changes to the FO marking, which indicates sole resistance to hydrocarbons. Previously mandatory for S1, S2, and S3 classifications, the FO marking is now optional. While many safety shoes will still feature this resistance, it is no longer a compulsory requirement. This change allows manufacturers more flexibility, though hydrocarbon resistance remains a valuable feature for certain work environments. The standard also introduces new categories and optional features, refining the classification system to better address diverse workplace safety needs.
Key Points Explained:
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FO Marking Transition from Mandatory to Optional
- The FO marking, which certifies sole resistance to hydrocarbons, is no longer a mandatory requirement for S1, S2, and S3 safety shoes.
- This change provides manufacturers with greater flexibility, though many may still include hydrocarbon resistance as an added feature due to its practical benefits in industrial settings.
- Purchasers should verify whether hydrocarbon resistance is necessary for their specific work environment, as it may now vary between products.
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New Optional Features and Classifications
- The standard introduces additional optional features like toecap abrasion resistance (SC) and ladder grip (LG), allowing for more specialized safety footwear.
- New categories such as S6 (permanently waterproof, similar to S2) and S7 (permanently waterproof, similar to S3) expand the range of waterproof safety shoes. Variants like S7L and S7S indicate integrated waterproofness.
- These updates enable buyers to select footwear tailored to specific hazards, such as wet conditions or ladder climbing.
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Changes in Slip Resistance Markings
- The SRA, SRB, and SRC slip resistance classifications have been abolished.
- All safety shoes must now meet basic slip resistance on ceramic tiles with detergent.
- An optional SR marking indicates higher resistance when tested with glycerin, helping purchasers identify footwear for slippery environments.
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Updates to Metallic and Non-Metallic Insert Testing
- Metallic inserts (P) retain the same 4.5 mm point test.
- Non-metallic inserts now have two new markings:
- PL: Tested with a 4.5 mm point.
- PS: Tested with a smaller 3 mm point under 1100 newtons of force.
- Labels like S1PS, S1PL, S3S, or S3L clarify insert type, aiding buyers in selecting puncture-resistant footwear suited to their workplace hazards.
These revisions reflect a shift toward more customizable safety footwear, balancing mandatory protections with optional enhancements. Purchasers should carefully assess their needs, as the new standard offers both broader choices and finer distinctions in safety features.
Summary Table:
| Key Change | Impact |
|---|---|
| FO Marking Optional | No longer mandatory for S1, S2, S3; manufacturers gain flexibility. |
| New Optional Features | SC (toecap abrasion), LG (ladder grip), S6/S7 (waterproof variants). |
| Slip Resistance Updates | SRA/SRB/SRC abolished; SR (glycerin test) optional for slippery surfaces. |
| Insert Testing Changes | PL (4.5 mm) and PS (3 mm) markings for non-metallic puncture resistance. |
Upgrade your safety footwear with the latest EN ISO 20345-compliant designs!
As a large-scale manufacturer, 3515 produces a comprehensive range of safety shoes and boots tailored to meet the new standard’s requirements. Whether you need hydrocarbon-resistant soles (FO), waterproof options (S6/S7), or specialized slip/puncture protection (SR/PL/PS), our products combine compliance with durability.
Contact us today to discuss bulk orders or custom solutions for distributors, brand owners, and industrial clients. Let’s ensure your workforce stays protected with footwear that adapts to evolving safety standards.
