ISO 19012-1:2013

Microscopes — Designation of microscope objectives — Part 1: Flatness of field/Plan

ISO 19012-1:2013 specifies the use of the marking “Plan” on microscope objectives, and defines the diameter of the sharp region of the primary image of a flat object surface. ISO 19012-1:2013 applies to visual observation using the combination of objective lens, tube lens and eyepiece, as specified by the manufacturer.

This marking is consistent with ISO 8578.

Edition	2013
Standard Part No	1
Published Date	2013
Published By	International Standardization Organisation
Page Count	7