CGSB 69.20:1990废止
Door Controls (closers)
出版：Canadian General Standards Board
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基本信息
标准编号： CGSB 69.20:1990
发布时间：1990/1/1 0:00:00
标准类别：Standard
出版单位：Canadian General Standards Board
标准页数：0
标准简介
Gives requirements for door closers surface mounted, concealed in the door, overhead and floor. Includes thresholds and pivots for floor closers. Criteria for conformance include cycle, closing force, operational and finish tests. Also included are optional tests which must be specified separately.
