- Legal metrology requirements
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Regulations that must be fulfilled by a measuring instrument to be used in applications subject to legal metrology (compulsory verification). For non-automatic scales, these are the European Directive on Non-Automatic Weighing Instruments 2014/31/EC and the European Standard on Metrological Aspects of Non-Automatic Weighing Instruments EN 45501. In Germany, the respective regulations are stipulated in the Verification Ordinance, General Section, and in Appendix 4 for non-automatic scales.