This standard BS EN 62503:2008 Multimedia quality. Method of assessment of synchronization of audio and video is classified in these ICS categories:
33.160.01 Audio, video and audiovisual systems in general
IEC 62503:2008 provides a subjective (or perceptible) and statistical method of assessment of overall, or end-to-end, difference of delays between real world and reproduced scenes in terms of video and accompanying audio recoded in a medium.