This standard applies to magnifiers for general and industrial use.
GOST 25706-1983 Referenced Document
GOST 11141-1984 Optical parts. Classes of cleanness of optical surfaces. Methods of control*, 1984-04-19 Update
GOST 15150-1969 Machines, instruments and other industrial products. Modifications for different climatic regions. Categories, operating, storage and transportation conditions as to environment climatic aspects influence