Applying legal metrology rules in laboratory weighing
Applying Legal Metrology rules causes very strict requirements for weighing instruments used in a legal for trade application. It also sets requirements concerning the usage of these instruments.
However these requirements may severely fall short of the users own process requirements and jeopardize his quality management if no complementary criteria are applied. This paper helps understand the shortcomings of applying legal metrology rules and describes complementary actions to be taken.
Legal metrology requirements are only applicable to commercial transactions. Even if the relative regulations offer valuable information in a world where guidance is scarce, their use should be limited to their original purpose.
However in their search for guidance on the correct selection and utilization of weighing instruments many users refer to the publications of the OIML and the NIST. The recommendations issued in these publications (e.g. OIML R 76-1, NIST Handbook 44) include comprehensive and important references on service approval, verification and marking. With legal for trade applications local national laws oblige the user to comply with the paragraphs found in these publications.
Learn more about applying legal metrology rules by downloading the White Paper.