The EN ISO 20345 standard is the global benchmark for safe shoe safety footwear, ensuring minimum safety requirements are met across various workplace hazards. It mandates features like 200-joule toe protection, slip resistance, and closed-back design, with additional classifications (S1-S5) and optional protections (anti-static, water resistance, etc.) tailored to specific risks. These norms provide manufacturers and buyers with clear guidelines to select footwear that balances safety, durability, and environmental adaptability.
Key Points Explained:
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Core Requirements of EN ISO 20345
- Toe Protection: All compliant shoes must withstand a 200-joule impact (equivalent to a 20kg object dropped from 1m) at the toe cap.
- Slip Resistance: Soles must pass tests on both smooth and greasy surfaces (e.g., ceramic tile with sodium lauryl sulfate).
- Closed Back: Ensures basic foot coverage and stability.
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Classification Levels (SB to S5)
- SB (Basic): Meets only core requirements (toe cap, slip resistance).
- S1: Adds anti-static (A), energy-absorbing heel (E), and fuel-oil-resistant soles (Fo).
- S2: Includes S1 features plus water-resistant upper (Wru).
- S3: Adds puncture-resistant midsole (P) and cleated outsoles for rugged terrain.
- S4/S5: Covers waterproof designs (S4: all-rubber; S5: combines S3 with waterproofing).
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Optional Protections
- A (Anti-static): Dissipates electrostatic charge (<1,000V resistance).
- P (Puncture Resistance): Midsole withstands a 1,100N nail penetration test.
- Wr/Wru: Water resistance (Wr for whole shoe; Wru for upper only).
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Performance Benchmarks
- Ankle Support: Evaluated through lateral rigidity tests.
- Heat Resistance: Soles must resist temperatures up to 300°C for 60 seconds.
- Abrasion Resistance: Insoles tested for durability under repeated friction.
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Practical Implications for Buyers
- Workplace Matching: S3 suits construction sites (puncture risks), while S1 fits dry labs (anti-static needs).
- Certification Marks: Look for "EN ISO 20345" labels and subclass codes (e.g., "S1 P A").
These standards streamline procurement by aligning safety features with occupational hazards, reducing injury risks while ensuring compliance. For specialized environments (e.g., chemical labs), combining classifications (e.g., S2 with Fo) optimizes protection.
Summary Table:
| Classification | Key Features | Best For |
|---|---|---|
| SB (Basic) | Toe cap, slip resistance | General low-risk environments |
| S1 | Anti-static, energy-absorbing heel, fuel-oil-resistant soles | Dry labs, workshops |
| S2 | S1 + water-resistant upper | Wet or humid conditions |
| S3 | S2 + puncture-resistant midsole, cleated outsoles | Construction, rugged terrain |
| S4/S5 | Waterproof (all-rubber or combined with S3 features) | Extreme wet conditions, heavy-duty use |
Ensure your workforce is equipped with the right safety footwear. As a leading manufacturer, 3515 produces a comprehensive range of EN ISO 20345-compliant shoes tailored for distributors, brand owners, and bulk buyers. From basic SB to advanced S5 models, our footwear meets global safety standards while offering durability and comfort. Contact us today to discuss your specific needs and explore our catalog!
