Use a measuring instrument compliant with the requirements
Not just any measuring instrument can be used for purposes regulated by the Measuring Instruments Act. For example, ordinary kitchen scales cannot be used to weigh a product to determine its price.
Companies or other parties using the measurement results (such as a housing company or a municipal water supply and sewerage system) is responsible for ensuring that the commissioned measuring instrument or scales conform to the requirements and that their characteristics are suitable for their intended purpose and operating environment. The measuring instrument must be sufficiently accurate, reliable and durable for its intended purpose.
The most common scales and measuring instruments must fulfil the requirements of the Measuring Instruments Directive (MID) or the NAWI Directive. Approved instruments can be identified by their markings (Markings on measuring instruments, link to the new page at Tukes.fi) and the declaration of conformity provided with the instrument.
Measuring instruments other than the ones conforming to the directive must usually have either a Finnish or European type approval. Normally, these devices must be verified before commissioning. Such verification must be carried out by an inspection body approved by Tukes.
Examples of measuring instruments and the related requirements are listed in the table.
Information about the design and manufacturing of measuring instruments
Measuring Instruments Act 707/2011
Government Decree on Measuring Instruments 471/2014
Government Decree on Non-Automatic Scales 1431/2016
Government Decree on Essential Requirements, Demonstration of Compliance and Specific Technical Requirements of Measuring Instruments 1432/2016
Measuring Instruments Directive 2014/32/EU (MID)
Non-Automatic Weighing Instruments Directive 2014/31/EU (NAWID)
Council Directive 76/211/EEC on the approximation of the laws of the Member States relating to the making-up by weight or by volume of certain prepackaged products
Council Directive 75/107/EEC on the approximation of the laws of the Member States relating to bottles used as measuring containers
Council Directive 80/181/EEC on the approximation of the laws of the Member States relating to units of measurement
Directive 2009/34/EC relating to common provisions for both measuring instruments and methods of metrological control
Website of the European Commission on legal metrology and pre-packaged products
The European Commission’s list on the harmonised standards of the MID
NANDO database Database of the European Commission on notified bodies
OIML International Organization of Legal Metrology
WELMEC (The body for the promotion of European cooperation in legal metrology)