MULTIGRADE is a rapid liquid concentrate dimezone-s/hydroquinone developer suitable for the dish/tray developing of all black and white photographic papers both resin coated, RC, and traditional fibre based, FB ones. It is usually used at a dilution of 1+9 but for greater development control and economy it can be used at 1+14. MULTIGRADE developer is clean working, has excellent keeping properties and gives a neutral image tone with most papers. MULTIGRADE developer is designed for use at ambient room temperatures, nominally 20C/68F. We do not recommend its use for high temperature or machine processing applications. It is not suitable for developing films.