✦ LIBER ✦

Self-service elevator control panels, a survey of user preference : Smith, D.L. In: Compass for Technology, Proceedings of the 23rd Annual Meeting of the Human Factors Society, Boston, Massachusetts, Oct 29–Nov 1 1979, Edited by C.K. Bensel, pp 124–128

Publisher: Elsevier Science
Year: 1980
Tongue: English
Weight: 140 KB
Volume: 11
Category: Article
ISSN: 0003-6870
DOI: 10.1016/0003-6870(80)90037-x

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✦ Synopsis

This standard, which applies only to hazard warning signals used in workplaces, prescribes criteria regarding perceptability of signals, particularly against high background noise levels. After defining some technical terms the standard prescribes required technical specifications to be met by signalling equipment and signals, rules for compliance testing and criteria to be met by the signals emitted (sound level and frequency, impulse time and frequency). 11.3.24 (78233)

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