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Fire Testing — Underwriters Laboratories Inc.
UL Underwriters Laboratories Dietrich UltraSTEEL®
Classification
Wall Design No. V450 in the UL Fire Resistance Directory
Steel Framing Members Fire Resistance Classification
See UL Directory of Products for Canada
and UL Fire Resistance Directory
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ICC-ES ESR 1977
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Architectural Testing, Inc. CCRR-0109
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Sound Ratings — Riverbank Acoustical Laboratories
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Structural Testing — Progressive Engineering
Inc.
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Structural Analysis — Construction Technology
Laboratories
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