title: [Long-term control of reproducibility of automatic developers (author's transl)].
abstract: Variability of blackening of X ray films may be due to inconstant concentration or temperature of the developer. Reproducibility was examined with stepwise blackening, exposed under standard conditions and densitometrically evaluated after development. The resulting differences of blackening are without significance for the subjective assessment of X ray films, since they lie within +/- 10%.
mesh_terms: D005373:Film Dosimetry; D010781:Photography / Q000295:instrumentation; D013679:Technology, Radiologic / Q000295:instrumentation; D013997:Time Factors
vernacular_title: Langzeit-Kontrolle der Reproduzierbarkeit an Entwicklungsautomaten.