What are the new water resistance markings introduced in the updated standard? Clearer Labels for Safer Footwear

The updated standard introduces significant changes to water resistance markings for footwear, replacing older classifications with more precise and comprehensive testing methods. Key updates include the replacement of WRU (water-repellent upper) with WPA (Water Penetration and Absorption) and WR (Water Resistance), which now evaluate the entire shoe rather than just the upper material. Additionally, new categories S6 and S7 combine existing safety ratings (S2 and S3) with WR to denote waterproof shoes, differentiating between models with or without puncture-resistant soles. These changes provide clearer guidance for purchasers seeking footwear with specific water resistance properties.

Key Points Explained:

1. Replacement of WRU with WPA and WR

   • The outdated WRU (water-repellent upper) marking has been replaced by two distinct classifications:
     • WPA (Water Penetration and Absorption): Focuses on the upper material’s ability to resist water penetration.
     • WR (Water Resistance): Indicates the shoe’s complete water resistance, tested for the entire product (not just the upper).
   • This shift ensures more accurate performance claims, as WRU only tested the upper, while WPA and WR reflect real-world conditions where water can enter through seams or soles.

2. New Waterproof Categories: S6 and S7

   • These classifications combine existing safety ratings with WR to denote waterproof capabilities:
     • S6 (S2 + WR): A waterproof shoe meeting the S2 standard (basic safety features like toe protection and sealed seams) but without a puncture-resistant sole.
     • S7 (S3 + WR): A waterproof shoe meeting the higher S3 standard (includes S2 features plus a puncture-resistant sole).
   • Example: A purchaser needing waterproof boots for construction would prioritize S7 for puncture protection, while S6 might suit lighter industrial use.

3. Testing Scope Expansion

   • Unlike WRU, which tested only the upper, WPA and WR assessments now evaluate the whole shoe, including seams, linings, and soles. This aligns with practical scenarios where water ingress often occurs at weak points beyond the upper material.

4. Implications for Purchasers

   • Clarity: The updated markings reduce ambiguity—WR guarantees full waterproofing, while WPA specifies upper performance.
   • Safety Integration: S6/S7 categories help buyers match waterproof needs with safety requirements (e.g., S7 for high-risk environments).
   • Compatibility Checks: Ensure other standards (e.g., slip resistance) are met alongside water resistance, as S6/S7 build on S2/S3.

These updates reflect a move toward more transparent and functional labeling, aiding purchasers in selecting footwear tailored to specific workplace conditions.

Summary Table:

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