Measurements are a fundamental part of our everyday lives since they are found in almost every one of our activities. All products are bought and sold after the performance of measuring processes, whether it be coffee, water or electricity, and this has effects on our personal economy. The radars (speed cameras) used by police, for example – which have economic and criminal consequences – are also subject to measuring. Hours of sunshine, clothing sizes, percentage of alcohol, the weight of letters, local temperature, tyre pressure· it is virtually impossible to describe any activity without mentioning metrology. Metrology contributes significantly to the quality of products and services, to the improvement of the methods and processes of the productive and construction sector, as well as to the safeguarding of commercial transactions, especially in the protection and safety of the consumer.