Force, hardness and torque measurements traceability is provided at the primary level by using the reference force, hardness and torque standards machines at TÜBİTAK UME.
Six different force standard machines are available the Force Laboratory with a total measurement range between 0,5 N and 3000 kN. Force standard machines with capacities of 200 N, 1 kN, 11 kN and 110 kN operate on the dead weight force generating principle and the 1100 kN maximum capacity force standard machine works as a lever amplification machine in which the deadweight force is amplified by the use of a mechanical lever. The 3000 kN capacity force standard machine works operates on the hydraulic/build up principle based on three 1 MN reference force transducers, individually calibrated at TÜBİTAK UME and then loaded and connected in parallel.
In addition, continuous calibration service of piezo electric force transducers is provided according to the comparison method in the (0-100) kN measurement range.
The Hardness laboratory has the Rockwell Hardness Standard machine that uses dead weights for force application and laser interferometer to detect the depth of indentation. The national Rockwell Hardness Scale is achieved at the primary level. The Brinell and Vickers Hardness Scale is established at the primary level in the laboratory using a single Brinell-Vickers hardness machine. Apart from these, there is a separate Microvickers hardness standard machine for establishing Vickers and Microvickers hardness scales. The Rockwell and Vickers hardness indenter calibration system which is used for the measurement of indentations is one of the most important infrastructures of the Hardness Laboratory.
The Torque Laboratory has a Torque standard machine which is able to perform calibrations in the 5 N∙m to 1000 N∙m range at the primary level and works on thedead weight torque generating principle. The laboratory has an additional torque calibration system with traceability to Physikalisch-Technische Bundesanstalt (PTB) that has a capacity up to 3000 kN∙m. The laboratory also has a reference torque calibration system and torque transducers which are used in the calibration of several reference torque transducers and torque wrench calibration systems.