This standard specifies the scope of application, specifications, dimensions and optical density of the transmission-type television linearity test chart (Type A). This test chart is mainly used for TV center, checking image geometric position distortion of black and white and color camera system.
GB/T 6996.2-1986 history
2012GB/T 6996-2012 Test charts of transparencies for television
1986GB/T 6996.2-1986 Linear test chart A of transparencies for television