Source document microfilms-- :
determination of ASA speed and average gradient : American national standard for photography (sensitometry) /
Secretariat, National Association of Photographic Manufacturers, Inc. ; approved March 11, 1987, American National Standards Institute, Inc.

Description

Corporate Author

American National Standards Institute.

Language(s)

English

Published

New York, N.Y. (1430 Broadway, New York 10018) : American National Standards Institute, c1987.

Subjects

Microphotography > Microphotography / Standards.
Documents in microform > Documents in microform / Standards.

Physical Description

11 cm. : ill. ; 28 cm.

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