• BS 4218:1978

BS 4218:1978

Specification for self-luminous exit signs

BSI Group , 09/30/1978

Publisher: BS

File Format: PDF

$132.00$264.16


Self-energized signs for luminosity requiring no external source of power, for mounting in theatres, cinemas, etc. Specifies energy source, lettering sizes, level and uniformity of luminance, and tests for impact, temperature, vibration and pressure.

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