This standard applies to the testing of photoelectric parameters and characteristics of vacuum photocells and gas-filled photocells.
GB/T 7271-1987 history
1987GB/T 7271-1987 Methods of measurement for phototubes
GB/T 7271-1987 Methods of measurement for phototubes has been changed from SJ/Z 9011.2-1987 Measurement of photosensitive devices--Part 2: Measurement of phototubes.