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BS 623:1940
Specification for colours for signal glasses for railway purposes
Заменен
Печатное изданиеПечатная копия
Разработчик:
Зарубежные/BSI
ICS:
17.180.20 Colours and measurement of light / Цветовые и световые измерение
Ключевые слова:
Lenses|Visual signals|Green|Photometry (light measurement)|Red|Colour-light signals (railways)|Transmittance|Semaphore signals (railways)|Railway signals|Colour|Colorimetric characteristics|Yellow|Glass|Signals|Tolerances (measurement)|Filters (optical)