This standard specifies the designation of microscope objectives and eyepieces and the color and position of the color circles indicating the magnification of the objectives and the immersion medium. This standard applies to objectives and eyepieces of biological, metallographic and polarizing microscopes.
GB/T 22056-2008 history
2018GB/T 22056-2018 Microscopes—Marking of objectives and eyepieces
2008GB/T 22056-2008 Microscopes-Marking of objectives and eyepieces