Verification

Verification is carried out for devices that are attributed to the field of legal metrology under the Republic of Lithuania Law on Metrology. Different devices are subject to different verification intervals.

If a device is on the LIST OF MEASURING INSTRUMENTS ATTRIBUTED TO FIELDS OF LEGAL METROLOGY and is within the scope of technical regulations, it is subject to legal metrology control, which entails conformity assessment and metrological verification.

After verification, the device is marked and, if required for the device, a verification certificate is issued containing the data related to the device and the date of validity of the verification.

If the device is not required to have a verification certificate issued, it is only marked.  However, the customer is always entitled to purchase a certificate for an additional fee for those devices for which a certificate is not mandatory.

If inspection of the device reveals that it is unfit for use, a certificate of non-conformity is issued and it is not marked.

If a device is not listed in the register list, it is inspected and a control report is provided.

Types of measuring instruments for which verification services are provided:

Acoustics and vibration measuring instruments
  • Sound monitoring systems;
  • Sound analysers;
  • Vibration meters;
  • Sound Level Meters;
  • Vibration measurement systems;
  • Aerosol particle mass analysers;
  • Breathalysers;
  • Aerometers: general, for spirits, urine, sucrose, petroleum products;
  • Automatic viscosity analysers;
  • Car window transparency measuring instruments;
  • Glass butyrometers;
  • Dilecometric moisture meters;
  • Gas analysers;
  • Gas measurement and alarm system (with one sensor);
  • Gas alarms;
  • Smoke meters;
  • Smoke analysers;
  • Electric system simulators;
  • Electronic pH meters;
  • Grain moisture measuring instruments;
  • Control aerometers;
  • Laboratory pH meters;
  • Wood moisture meters;
  • Metal spirit meters;
  • Oil densimeters;
  • Devices for determining the flash point of petroleum products;
  • Oximeters;
  • Air intake aspirators;
  • Milk analysers;
  • Industrial converters;
  • Psychrometers;
  • Rotameters;
  • Conditional viscosity viscometers;
  • Explosive toxic oxygen gas sensors;
  • Stationary gas analysers;
  • Glass viscometers.
  • Headlight adjustment devices;
  • Railway templates;
  • Fabric measuring machines and tables;
  • Dash meters;
  • Railway templates;
  • Railway sliding callipers;
  • Railway feeler gauge sets;
  • Railway inside callipers;
  • Length measuring machines;
  • Cable and lacquered wire length measuring instruments;
  • Railway control templates;
  • Laboratory sieves;
  • Maximum profile railway templates;
  • Metal rulers;
  • Metre sticks;
  • Levelling rods;
  • Levels;
  • Leather area measuring machines;
  • Tape measures;
  • Dipping tapes;
  • Sliding callipers;
  • Theodolites;
  • Callipers
  • Spring dynamometers;
  • Cycle ergometers;
  • One-sided and two-sided torque wrenches.
  • Tachographs;
  • Vehicle speed measuring instruments;
  • Radar measuring systems and devices for measuring vehicle speed;
  • Average vehicle speed measuring devices;
  • Vehicle brake stands (0÷6) kN, (0÷8) kN, (0÷30) kN, (0÷40) kN;
  • Electronic speedometers;
  • Electronic taximeters;
  • Speed limiters;
  • Deceleration measuring devices;
  • Locomotive speed measuring instruments;
  • Speedometers;
  • Brake stands;
  • Tachometers.
  • Environmental dosimeters and dose rate meters (Cs/137, Co/60);
  • Personal dosimeters and dose rate meters (Cs/137, Co/60);
  • Exposure and dose rate meters (Cs/137, Co/60);
  • Gamma radiation radiometers (Cs/137, K/40);
  • Beta radiation radiometers (Sr/90 + Y/90);
  • Gamma and beta emission meters (Cs/137, Sr/90 + Y/90).
  • Electronic tachometers;
  • Mechanical and electronic stopwatches;
  • Parking meters;
  • Parking systems;
  • Telephone call volume and duration accounting systems.
  • Automatic medication dispensers;
  • Pipette dispensers;
  • Hectolitre meters;
  • Class E2, F1, F2, M1, M2, M3 weights;
  • Automatic and semi-automatic weighing instruments;
  • Electronic weighing instruments;
  • Vehicle scales;
  • Electronic recording weighing instruments;
  • Laboratory weighing instruments;
  • Wagon weighing instruments;
  • Automatic weight dosing dispenser with 2 and 3 weight heads;
  • Weight dosing dispensers and weighing instruments.
  • Accuracy class 2(B) glass volumetric measures up to 500 mL (pipettes, burettes, flasks, cylinders, test tubes, rain gauges, beakers);
  • Accuracy class 2(B) glass volumetric measures over 500 mL (flasks, cylinders, beakers);
  • Accuracy class A glass volumetric measures up to 500 mL (flasks, cylinders, pipettes, burettes);
  • Accuracy class A glass volumetric measures over 500 mL (flasks, cylinders);
  • Accuracy class A glass burettes;
  • Oil dispensing meters with display;
  • Tank trucks;
  • Chamberless narrowing devices;
  • Bottle counters;
  • Fuel metering systems;
  • Differential manometers – flow meters without integrator;
  • Remote recording level gauges and deviance measuring devices;
  • Chamber narrowing devices;
  • Fuel dispensers;
  • Fuel tanks
  • Masstrol-type computer with one flow meter;
  • Conical metal beakers;
  • Milk meters;
  • Petrov’s device PPR;
  • Scaling and technical gauges l;
  • Calculation of narrowing devices;
  • Verification of narrowing device calculations performed with a PC;
  • Heat meters;
  • Liquefied gas filling dispensers;
  • Lubricant dispensers;
  • Cold and hot water meters.
  • Vehicle tyre pressure gauges;
  • Multi-variable pressure transducers IPDC;
  • Deformation manometer vacuum meters;
  • Oxygen manometers;
  • Distance manometers MTS;
  • Electronic arterial blood pressure devices;
  • Manometers – electro-contact, control, laboratory;
  • Micromanometers with slanted tube;
  • Digital manometers/calibrators;
  • Pressure transducers;
  • Pressure gauges, traction meters;
  • Stationary blood pressure monitors;
  • Weighted piston manometers and weighted piston manometer
  • sets;
  • Weighted piston vacuum manometers MVP- 2.5;
  • Technical manometer vacuum meters.
  • Automatic bridges and potentiometers;
  • Bimetal thermometers and thermomanometers;
  • Working and reference rhodium-platinum/platinum thermoelectric converters;
  • Multi-variable indicating temperature meters;
  • Electro-contact thermometers;
  • Hygrographs;
  • Hygro-thermometers;
  • Infrared gauges;
  • Laboratory thermometers;
  • Maximum clinical electronic thermometers;
  • Manometric thermometers;
  • Medical mercury thermometers;
  • Millivolt meters with CT element;
  • Air temperature humidity meters (thermometer-hygrometers);
  • Displaying and recording logometers and millivolt meters;
  • Brightness working pyrometers;
  • Digital temperature and humidity meters;
  • Digital thermometers;
  • Digital temperature gauges with external and internal sensor;
  • Glass laboratory thermometers;
  • ASTM glass thermometers;
  • Technical glass thermometers;
  • Temperature transducers Pt 100/-20mA;
  • Temperature and humidity accumulators;
  • Thermometers (working resistance heat exchangers);
  • Thermometers for accurate measurements (metastatic);
  • TR-type thermometers for accurate measurements;
  • Thermocouples;
  • Low temperature laboratory and technical glass thermometers;
  • Low temperature meteorological thermometers.