Quote Originally Posted by brucemuir View Post
Henry, the formula for reversal 1st developer calls for adding some sodium thiosulphate to clear highlights but Mr Datsuns recipe in the OP seems way excessive.

Sorry I'm also unfamiliar with D94a
brucemuir, If we assume that 10% means W/V then doesn't it look like a reasonable amount as by the the time you add 1L of it to 1L of D76 you have 5% W/V of sodium thiosuphate?