The following proposal is a revision to SC 2.3.1 and it's definitions for discussion on the 05 April 2007 teleconference.
2.3.1 Flash Threshold: Content does not flash more than 3 times in any one second period unless the flash is below the general flash threshold and the red flash threshold. How to meet 2.3.1
A sequence of flashes or rapidly changing image sequences where all four of the following occur:
Notes:
transition to or from a saturated red where all three of the following occur:
Note: For general web content using a 341 x 256 pixel rectangle anywhere on the displayed screen area when the content is viewed at 1024 x 768 pixels will provide a good estimate of a 10 degree visual field of standard screen sizes and viewing distances.