Photographers' Formulary Developer Substitute D-19
METOL: Some individuals become sensitized (develop allergic symptoms or rashes) when using metol. If this should occur, discontinue use AND consult a physician.
HYDROQUINONE: Is considered to be hazardous and a skin sensitizer.
This is a published formula originally designed for use with x-ray materials and is now recognized as an excellent developer for aero films and plates when high contrast is desired. D-19 Film Developer is a high-contrast developer used primarily for scientific applications with spectroscopic films and plates, high resolution plates and films like Tech Pan and high speed Infrared. D-19 provides higher than normal contrast and speed, higher than average graininess, high capacity, clean working and fast acting.