ISO 19012-1:2011 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 19012-1:2011 applies to visual observation using the combination of objective lens, tube lens and eyepiece, as specified by the manufacturer.
Status : WithdrawnPublication date : 2011-07
Edition : 2Number of pages : 6
Technical Committee:Microscopes and endoscopes