Test for reprographic use; fundamental assembly of typographical characters for legibility tests, test card for practical use in rotary cameras— 2 стр.
Tests for Reprographic Use; DIN-test Assembly (Test Table) for Testing the Microfilming of Technical Drawings; Neutral Density Cards for Use in Practice— 1 стр.
Determination of thiosulphate and other residual chemicals in processed photographic films, plates and papers; methylene blue photometric method and silver sulphide densitometric method— 6 стр.