Résumé
The specifications apply to photoflash lamps in which the light is produced by a combustion within a transparent envelope, initiated by an electrical contact. the important time intervals of the luminous flux/time characteristics for such lamps are given, and the lamps are classified on the basis of these intervals.
Cycle de vie
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Précédemment
AnnuléeISO 2691:1973
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Actuellement
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