The mass per unit area standards are available from Helmut Fischer GmbH of Sindelfingen, Germany.
These can be traced to the International System of Units; the international prototype meter and the international prototype kilogram.
Why DKD Calibration Certificates?
The purpose of monitoring the measurement devices is to secure the correct instrument functions in the context of a QM system (ISO 9001). A Fischer calibration standard with a DKD calibration certificate secures the trueness of the instrument calibration with the certainty of being able to ensure traceability to the International System of Units in international trade.
