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716.3 Marking Fire-Rated Glazing Assemblies
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Fire-rated glazing assemblies shall be marked in accordance with Tables 716.3, 716.5 and 716.6.
For SI: °C = [(°F) - 32]/1.8.
FIRE TEST STANDARD | MARKING | DEFINITION OF MARKING |
ASTM E119 or UL 263 | W | Meets wall assembly criteria. |
NFPA 257 or UL 9 | OH | Meets fire window assembly criteria including the hose stream test. |
NFPA 252 or UL 10B or UL 10C | D | Meets fire door assembly criteria. |
H | Meets fire door assembly hose stream test. | |
T | Meets 450°F temperature rise criteria for 30 minutes | |
XXX | The time in minutes of the fire-resistance or fire protection rating of the glazing assembly. |
For SI: °C = [(°F) - 32]/1.8.
For fire-rated glazing, the label shall bear the identification required in Tables 716.3 and 716.5. "D" indicates that the glazing is permitted to be used in fire door assemblies and that the glazing meets the fire protection requirements of NFPA 252. "H" shall indicate that the glazing meets the hose stream requirements of NFPA 252. "T" shall indicate that the glazing meets the temperature requirements of Section 716.5.5.1. The placeholder "XXX" represents the fire-rating period, in minutes.
For fire-protection-rated glazing, the label shall bear the following identification required in Tables 716.3 and 716.6: "OH — XXX." "OH" indicates that the glazing meets both the fire protection and the hose-stream requirements of NFPA 257 or UL 9 and is permitted to be used in fire window openings. The placeholder "XXX" represents the fire-rating period, in minutes.
Fire-rated glazing assemblies marked as complying with hose stream requirements (H) shall be permitted in applications that do not require compliance with hose stream requirements. Fire-rated glazing assemblies marked as complying with temperature rise requirements (T) shall be permitted in applications that do not require compliance with temperature rise requirements. Fire-rated glazing assemblies marked with ratings (XXX) that exceed the ratings required by this code shall be permitted.
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