ISO 10330:2002 Preview
Photography -- Synchronizers, ignition circuits and connectors for cameras and photoflash units -- Electrical characteristics and test methods
This standard was last reviewed and confirmed in 2016. Therefore this version remains current.
ISO 10330 specifies the electrical requirements of the camera synchronizer, the ignition circuit in the photoflash unit and the cable to connect these, and the test methods to secure positive firing of the photoflash unit.