Both countries use the metric system in building, and plasterboard is manufactured in thicknesses of 10mm, 13mm, and 16mm, and sometimes other thicknesses up to 25mm.
Modern monochromators are manufactured with diffraction gratings, and diffraction gratings are used almost exclusively in spectroradiometric applications.
This is the reason that nuclear reprocessing is a useful activity: solid spent nuclear fuel contains about 97% of the original fissionable material present in newly manufactured nuclear fuel.
