UL 555C-1996 标准详情
- 标准号:UL 555C-1996
- 中文标题:天花板节气闸的UL安全标准
- 英文标题:ul standard for safety ceiling dampers second edition; bulletins dated 1/18/1999 (5p), 3/30/1999 (8p), 3/31/2000 (10p)
- 标准类别:美国保险商实验室标准UL
- 发布日期:1996-12-20
SCOPE THESE REQUIREMENTS AND METHODS OF TESTS APPLY TO CEILING DAMPERS INTENDED FOR INSTALLATION IN HOURL Y RATED FIRE RESISTIVE FLOOR-CEILING AND ROOF-CEILING CONSTRUCTIONS. FIRE RESISTIVE ASSEMBLIES ARE INVESTIGATED IN ACCORDANCE WITH THE STANDARD
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