This standard specifies the applicable scope, specification, size and optical density of the transmissive TV grayscale test chart (Type B). This test chart is mainly used for daily calibration of black-and-white and color camera system photoelectric transmission characteristics of TV center and measurement of photoelectric conversion curve of camera devices.
GB/T 6996.13-1986 history
2012GB/T 6996-2012 Test charts of transparencies for television
1986GB/T 6996.13-1986 Gray scale test chart B of transparencies for television
GB/T 6996.13-1986 Gray scale test chart B of transparencies for television was changed to GB/T 6996-2012 Test charts of transparencies for television.