This symbol found throughout the catalogue indicates Weatherstrip, Door Seals and Threshold products that are listed for installation with Listed Wood or Mineral Core Fire Doors with Listed Steel or Wood Fire Door Frames, and Listed Steel (Steel‑Stiffened, Polystyrene, Urethane or Honeycomb) or Wood Fire Doors with Listed Steel Fire Door Frames up to and including 1-1/2 hour locations. Weatherstrip for installation with Listed Steel Fire Door Frames, and Listed Steel (Steel-Stiffened, Polystyrene, Urethane or Honeycomb) Fire Doors with Listed Steel Fire Door Frames up to and including 3 hour locations; Weatherstrip: W-23, W-24S, and W-25S. Astragal: W-5S, W-7, W-8, W-8SP, W-8SS, W-10SP & W-25.

Evaluated to the following:

Unless otherwise noted, assemblies in this section have been evaluated for conformance to the following standards as a component part in a Door Assembly:

• CAN/ULC S104, Standard Method for Fire Tests of Door Assemblies
• NFPA 252, Standard Methods of Fire Tests of Door Assemblies
• UL10B, Fire Tests of Door Assemblies

And are installed in accordance with the following:

• Code Requirements
• Manufacturer's Installation Instructions

All assemblies are identified by a marking bearing the wording, "Listed (Product)", a time interval and the WHI Certification Mark.

TESTED BY INTERTEK TESTING SERVICES