Calibration of mass and related quantities in Kharkiv

IMTLab performs calibration of weights for laboratories, manufacturing enterprises, metrology services, and service companies in Kharkiv. This service is required wherever weighing accuracy affects quality control results, production processes, laboratory research, or successful audits.

We work with individual weights and weight sets of different accuracy classes, ensuring traceability of results to national and international standards.

• weight range: from 1 mg to 10 kg
• weights of classes F1, F2, M1, M2, M3
• uncertainty: 0.006–16 mg (class F1)

We calibrate:

• individual weights and sets;
• weights for industry, laboratories, and metrology centers;
• weights made of stainless steel, cast iron, brass, and special alloys.

What you receive:

• calibration certificate with results and uncertainty evaluation in accordance with ISO/IEC 17025;
• confirmation of compliance with the accuracy class;
• traceability of results to national standards;
• recommendations on storage conditions and calibration frequency.

Advantages of our calibration:

• use of reference masses of the highest accuracy;
• strict compliance with methods and ISO/IEC 17025 requirements;
• control of the influence of environmental factors, such as temperature and humidity;
• high repeatability and reliability of results.

Calibration of non-automatic weighing instruments in Kharkiv is relevant for laboratories, industrial enterprises, food production facilities, pharmaceutical companies, warehouse complexes, and quality control departments.

IMTLab checks indication accuracy, repeatability, stability, linearity, and other metrological characteristics of weighing equipment. This makes it possible to detect deviations in a timely manner and confirm that the equipment is suitable for use.

• range: from 1 g to 80 kg
• uncertainty: 0.004–800 mg

We calibrate:

• laboratory balances;
• analytical and microbalances;
• trade and industrial scales;
• platform scales;
• bench and hanging scales;
• medical and specialized scales.

During calibration, we check:

• indication accuracy across different ranges;
• zero-point error;
• repeatability and reproducibility of measurements;
• linearity and sensitivity;
• the influence of environmental conditions;
• compliance with established requirements and the accuracy class.

What you receive:

• official calibration certificate with uncertainty evaluation in accordance with ISO/IEC 17025;
• confirmation of the accuracy and stability of scale operation;
• traceability of results to national and international standards;
• recommendations regarding technical condition and calibration frequency.

Advantages of our calibration:

• compliance with ISO/IEC 17025 and OIML R76 requirements;
• calibration available both in the laboratory and on site;
• use of reference weights of high accuracy classes;
• minimal impact on the customer’s workflow.

For enterprises in Kharkiv that perform mechanical testing of materials, the accuracy of testing machines is critically important. IMTLab performs calibration of equipment used for force measurement, tensile testing, compression testing, and control of the mechanical characteristics of materials.

Calibration helps confirm the correctness of machine readings, assess operational stability, and ensure reliable test results for production, laboratories, and quality control departments.

• range: from 1 N to 2 MN
• uncertainty: 0.05%; 0.1%

We calibrate:

• universal testing machines (UTM);
• tensile testing machines;
• compression testing machines;
• presses and force test stands;
• machines for mechanical testing of materials.

During calibration, we check:

• force measurement accuracy across the entire range;
• repeatability and reproducibility of readings;
• the influence of loading speed;
• linearity and stability of measurements;
• compliance with ISO 7500-1 or other regulatory documents.

What you receive after calibration:

• calibration certificate with traceable results in accordance with ISO/IEC 17025;
• uncertainty evaluation and confirmation of the accuracy class;
• recommendations regarding the technical condition of the machine and calibration frequency;
• confidence in the correct operation of testing equipment during material quality control.

Our advantages:

• use of high-accuracy reference force transducers;
• compliance with ISO/IEC 17025 and ISO 7500-1 methods;
• on-site calibration without dismantling the equipment;
• minimal impact on the enterprise’s workflow;
• high stability and repeatability of measurements.

IMTLab performs calibration of torque wrenches for service centers, manufacturing enterprises, installation organizations, and technical departments in Kharkiv. This service is required wherever it is important to control tightening torque and avoid errors during assembly, repair, or equipment maintenance.

During calibration, the accuracy of the applied torque, repeatability of readings, stability of the mechanism, and compliance of the tool with standard requirements are checked.

• range: from 0 N to 1000 N
• uncertainty: 0.5%

We calibrate:

• mechanical torque wrenches;
• ratchet and dial torque wrenches;
• electronic and digital torque wrenches;
• torque-limiting wrenches;
• industrial and service socket tools.

During calibration, we check:

• accuracy of the set and applied torque;
• repeatability of readings;
• smoothness and stability of the mechanism;
• compliance with ISO 6789 or other standards;
• errors at different load levels.

What you receive:

• calibration certificate with results and uncertainty in accordance with ISO/IEC 17025;
• confirmation that the tool complies with the accuracy class;
• traceable data for audits and quality management systems;
• recommendations on calibration frequency and technical maintenance.

Advantages of our calibration:

• use of high-accuracy reference torque measuring instruments;
• compliance with ISO/IEC 17025 and ISO 6789 requirements;
• calibration available in the laboratory or on site;
• high repeatability and reliability of results.

Calibration of hardness testers in Kharkiv is required for enterprises that control the hardness of metals, polymers, coatings, or finished products. IMTLab performs calibration of hardness testers according to Brinell, Vickers, Rockwell, and Shore scales.

During the work, we evaluate indication accuracy, measurement stability, the condition of the indenter, load compliance, and correct equipment operation.

We calibrate hardness testers according to the following scales:

• Brinell: (5–450) HB;
• Vickers: (8–850) HV; HV5–HV100; HV0.01–HV3;
• Rockwell: (70–93) HRA; (25–100) HRB; (20–70) HRC;
• Shore: (0–100) HA.

During calibration, we check:

• indication accuracy at different load levels;
• measurement stability and repeatability;
• the condition of the indenter and load compliance with standards;
• flatness and quality of the supporting surface;
• compliance with ISO 6506, ISO 6507, ISO 6508, ISO 7619, or other regulatory requirements.

What you receive:

• calibration certificate with a full set of measurements in accordance with ISO/IEC 17025;
• uncertainty evaluation and confirmation of the accuracy class;
• traceable data to national and international standards;
• recommendations regarding the technical condition and operating conditions of the hardness tester.

Advantages of our calibration:

• use of certified reference hardness blocks;
• strict compliance with ISO/IEC 17025 methods;
• on-site calibration at the customer’s facility is possible;
• high reliability and repeatability of measurements.

IMTLab performs calibration of pendulum impact testers for laboratories and manufacturing enterprises in Kharkiv that carry out impact toughness testing of materials.

Calibration makes it possible to check the energy parameters of the equipment, the pendulum swing angle, energy losses, the condition of impact elements, and compliance with the requirements of relevant standards.

• range: from 5 to 2500 J
• uncertainty: 0.1%

We calibrate:

• pendulum impact testers for Charpy impact toughness testing;
• pendulum impact testers for Izod testing;
• laboratory and industrial impact testing systems;
• impact testers of various energy ranges.

During calibration, we check:

• correct setting of the pendulum height and swing angle;
• accuracy of fracture energy readings;
• energy losses in the system, including friction, air resistance, and mechanical losses;
• compliance of the pendulum’s geometric parameters with standards;
• condition of locks, supports, and impact blades;
• compliance with ISO 148-2 or other regulatory documents.

What you receive:

• calibration certificate with traceable results in accordance with ISO/IEC 17025;
• measurement uncertainty evaluation;
• confirmation that the equipment complies with standard requirements;
• recommendations regarding technical condition and calibration frequency.

Advantages of our calibration:

• use of certified reference standards to verify the accuracy of energy parameters;
• compliance with ISO/IEC 17025 and ISO 148-2 requirements;
• high-precision adjustment and control of geometric parameters;
• calibration at the customer’s facility;
• stable and repeatable results.

Calibration of capacity measures in Kharkiv is relevant for laboratories, pharmaceutical, chemical, food, and manufacturing companies where volume accuracy affects analysis results, dosing, or technological processes.

IMTLab performs calibration of measuring glassware and equipment for volume measurement using the gravimetric or volumetric method.

• range: from 0.1 to 1000 ml
• uncertainty: from 0.3% to 0.042%

We calibrate:

• volumetric flasks;
• graduated cylinders;
• pipettes, both mechanical and glass;
• burettes;
• dispensers;
• reservoirs, tanks, and other containers for technological processes;
• laboratory and industrial measuring vessels.

Methods we use:

• gravimetric method – conversion of the mass of the filled liquid into volume, taking into account density and temperature;
• volumetric method – comparison with a reference measure;
• control of temperature, liquid density, and environmental conditions to minimize errors.

During calibration, we check:

• accuracy of the nominal volume;
• uniformity of filling;
• dosing error;
• stability of results during repeated fillings;
• compliance with ISO 4787, ISO 8655, or other regulatory requirements.

What you receive:

• official calibration certificate with all measurements in accordance with ISO/IEC 17025;
• uncertainty evaluation;
• traceability of results to national standards;
• recommendations on operation and calibration frequency.

Advantages of our calibration:

• use of high-accuracy mass and temperature standards;
• compliance with international methods and standards;
• calibration of both laboratory and industrial equipment is possible;
• high repeatability and reliability of measurements.

IMTLab performs calibration of piston-operated volumetric devices for laboratories, medical, pharmaceutical, chemical, and research organizations in Kharkiv.

This service makes it possible to evaluate dosing accuracy, repeatability, operational stability of the device, and compliance of actual characteristics with standard requirements.

We calibrate:

• piston dispensers;
• micropipettes and automatic pipettes;
• syringe dispensers;
• laboratory piston-operated measuring devices;
• piston-operated devices for technological processes;
• piston burettes;
• dispensers.

During calibration, we check:

• accuracy of volume delivery;
• repeatability and reproducibility of dosing;
• linearity across the entire operating range;
• dosing stability under different operating modes;
• compliance with ISO 8655 or other regulatory documents.

Calibration methods:

• gravimetric method – mass is converted into the corresponding volume, taking into account water density and temperature;
• control of environmental conditions, including temperature, humidity, and atmospheric pressure;
• multiple dosing cycles to assess stability.

What you receive:

• official calibration certificate in accordance with ISO/IEC 17025;
• measurement uncertainty evaluation;
• confirmation of dosing accuracy;
• recommendations on operation and calibration frequency.

Advantages of our calibration:

• compliance with international standards ISO/IEC 17025 and ISO 8655;
• use of high-accuracy weight and temperature standards;
• high repeatability and reliability of results;
• calibration available both in the laboratory and at the customer’s facility.