This standard was last reviewed and confirmed in 2018. Therefore this version remains current.
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.
Status : PublishedPublication date : 2013-05
Edition : 3Number of pages : 7
Technical Committee:Microscopes and endoscopes
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