ISO 1229:1989
Photography — Expendable photoflash lamps — Determination of light output
Reference number
ISO 1229:1989
ISO 1229:1989
Edición 2
1989-05
1989-05
© ISO 2024
Retirada
Resumen
Methods are specified for the determination of the light output of expandable non-reflectored photoflash lamps. The test apparatus described can a) record the light versus time curve and b) determine the total light output from this curve by integration. The test procedures apply to photoflash lamps in which the light is produced by an electrically initiated combustion within a transparent envelope.
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RetiradaISO 1229:1972
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