
Of Libra are indispensable devices in many fields. Simple mechanical and precise scales are being singled out - electronic. They are produced depending on applying and destined for weighing appropriate raw materials, goods and the heavy equipment. In the life different kinds of shop scales are the everyday most frequent met kind of scales, and among them mainly basic, calculating with the arm and without the arm, with the printer, self-service, hanging, counting and stock. They are a different kind of scales car axial, steel, steel-concrete – whether. Laboratory scales applied in laboratories, in jeweller's shops, chemists are a special kind of scales. The chemist for making prescription medicines out requires very accurate importances, they are these are mainly powder scales for accuracies 0.001 g and with the internal calibration. Large storehouses and wholesale companies often use scales with the computer. After weighing goods out, in the computer its name is being made a note, it is possible also to determine the net weight, to count goods in pieces and to archive all data. They are also finding the Libra using the recyclable waste in collections point. On special industrial scales about sturdiness adapted for conditions existing in collections point non-ferrous metals and steel scrap are being weighed retail. Scales adapted for weighing steel scrap on cars often appear in collections point. Made of the reinforced concrete, to hesitations temperatures and stresses are strong, invulnerable and they are fit for weighing vehicles, of which mass with loaded scrap fluctuates in borders 30 – 60 of ton. On the market available there are many kinds of produced at home and abroad scales. Services selling often provide additional services concerning the legalization, calibrating, the assembly, of hybridization whether of scales. They are carrying trainings on moreover for persons operating scales and in the scope of acquainting with metrological regulations.



