Figure 6-40. Typical Arrangement of Through-the-Wall Automatic Processing Darkroom.
The development chemicals that are used in automatic industrial radiographic process differ in formulation from those
that are used during the industrial manual process and medical automatic processing. For instance, the developing
solution contains a hardener in addition to its constituents to inhibit excessive softening of the emulsion. Softening of
the emulsion interferes with the transport of the film through the processor. These chemicals are specially designed for
use at high temperatures. Medical automatic processing chemicals are formulated to function at high temperatures, but
are not capable of producing acceptable industrial radiographic results. Only development chemicals formulated to be
used to develop industrial radiographic film SHALL be used in industrial radiographic film processors.
Periodic inspection, maintenance and lubrication of radiographic film processing equipment is required by the technical
manual governing its operation. It is imperative that the prescribed daily, bi-weekly and monthly requirements be
strictly followed to insure proper operation of equipment, and to support quality radiographic inspection results. With
appropriate maintenance, automatic processors should give reliable and repeatable service for long periods of time.