If you charge by weight or weigh for medical or pharmaceutical purposes, legal requirements apply. Here you read what the Dutch Metrology Act requires and how verification and re-verification work. MASSLAB is a Recognised Verifier; see legal verification of scales.
The type plate of a legally verified scale tells you whether it is verified, which class it falls into and for which range the verification applies. We explain the M mark, the seals, Max, Min, e and d with an example.
Read article →After a repair to the weighing system or a broken seal, the legal verification of a scale is no longer valid. Read which work this covers, how to approach the re-verification and how to combine it with a calibration.
Read article →When must a scale be legally verified, who supervises this and what must you do after a repair? A practical explanation of the Dutch Metrology Act for non-automatic weighing instruments, with a comparison with Belgium.
Read article →A Recognised Verifier verifies, marks and seals measuring instruments after recognition by the government. Read what that role involves, how it differs from a notified body and a calibration lab, and what to look for.
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