Bright-chromium linewidth standard, SRM 476, for calibration of optical microscope linewidth measuring systems /
Vezzetti, Carol F.
Varner, Ruth N.
Potzick, James E.
National Institute of Standards and Technology (U.S.)
Gaithersburg, MD. : National Institute of Standards and Technology,
1991.
At head of title : Special reference materials
Includes bibliographical references.
Microscope and microscopy