I was all set to pour the developer into the Paterson tank. I had mixed up 1 Litre of D76 working solution at 1:3 but I got interrupted. That was 48 hours ago. The developer has been sitting in a full 1 Litre bottle for 48 hours in a pretty cool room. Is it still good? I can't seem to figure it out from the Kodak (Alaris) data sheet.