Effect of the Water Supply in Processing Motion Picture Film

Impurities in the water supply are classified as follows: Dissolved salts, suspended matter, dissolved extracts, dissolved gases. The action of each impurity on development, fixation, and washing of films is treated. Methods of purifying water include distilling, boiling, filtering, and chemical treatment. Sea water, although not seriously harmful, should not be used excepting in an emergency. It is concluded that impurities in the water supply are not responsible for as many troubles as is usually supposed.

Print ISSN

0097-5834

Published

1931-04

Content type

Original Research

DOI

10.5594/J08082