Measurement and checking devices, measuring apparatus and measuring instruments and parts and fittings for the aforesaid goods, namely, calibrating standards and fitted containers and cases for storage and transport for the aforesaid goods; * Fittings for * data processing apparatus and computers [ and parts and fittings therefor, namely, computer display screens, keyboards, input and output devices, devices for memory expansion and capacity expansion therefor and ] *, namely, * interfaces for the transfer of measuring data on external computers; computer programs and parts and fittings therefor, namely, subprograms and program modules, program generators, dongles, tools and interface programs for analysis and display of measured data to external computers as well as tools and interfaces for the transfer of measured data to external computers and/or to quality systems; prerecorded data carriers containing data for reference and sample data for analysis, display and/or onward transmission of measured data