Calibration and legal metrology

Calibration and legal metrology

Calibration and legal metrology

The services provided consist of the calibration of dimensional measuring instruments, mass calibrations and weighing instruments, calibration of force, torque and hardness measuring instruments, measurement of pressure magnitude in hydraulics and pneumatics, calibration of equipment for the generation and measurement of electrical parameters, calibration of temperature and humidity measuring and control equipment, both in a permanent laboratory and at the customer’s facilities, and metrological control of non-automatic weighing instruments.

  • Dimensional calibration

    LENGTH, ANGLE AND METROLOGY CALIBRATIONS

    The ITA has standards for the calibration of dimensional measuring instruments and the necessary equipment (CMM’s, profile projector, roughness meter, profilometer, etc.) to perform dimensional metrological control and surface quality of tools and parts.

    Activities marked with (*) are not covered by ENAC accreditation.

    Length calibrations

    • Longitudinal steel, carbide and ceramic pattern blocks.
    • Feet and depth probes.
    • Outside micrometers and inside micrometers with two and three contacts.
    • Vertical rulers (scribe rulers), line rulers, flexometers and tape measures.
    • Mechanical comparators, electronic comparators and alexometers.
    • Smooth boundary gauges; parallel and cylindrical faces.
    • Tampons and threaded rings.
    • Cylindrical patterns of inner and outer diameter.
    • End pattern bars.
    • Thickness standard sheets.

    Angle calibrations

    • Angle protractors and goniometers.
    • Squares.
    • Levels of measurement.

    In-situ length calibrations

    • Horizontal coordinate measuring devices.
    • Vertical coordinate measuring devices.
    • Profile projectors.
    • Coordinate measuring machines.

    (*) Dimensional metrology

    • Dimensional control of tools and parts.
    • Surface quality (roughness) and profilometry.
    • Digitization and scanning / Reverse engineering.
  • Mass calibration

    MASSES AND WEIGHING INSTRUMENTS

    ITA has the necessary means to perform mass and weighing instrument calibrations, both in the institute’s laboratories (permanent laboratory calibrations) and at the customer’s facilities (“in situ” calibrations).

    Mass calibrations

    • Class F1, F2, M1, M2 and M3 masses from 1 mg to 20 kg.
    • Class F2, M1, M2 and M3 masses of 500 kg.
    • Non-standardized mass standards according to OIML R-111:2004.

    Non-Automatic Weighing Instruments (IPFNA)

    • Electronic scales <= 70 kg.
    • Scales <= 1500 kg.
    • Scales <= 3000 kg.
    • Large tonnage scales <= 60000 kg.
    • Instruments with special load receptors (hoppers, tanks, hooks, silos, etc.).
  • Force, torque and hardness calibration

    FORCE, TORQUE AND HARDNESS INSTRUMENTS

    The ITA laboratory calibrates instruments for measuring force (testing machines and dynamometers), torque (dynamometric tools) and hardness (hardness testers).

    Activities marked with (*) are not covered by ENAC accreditation.

    Force calibrations

    • Force measurement systems of uniaxial testing machines in increasing direction of class 0.5 or lower, according to UNE-EN ISO 7500-1 standard.
    • Crosshead displacement systems of uniaxial testing machines (displacement sensors), according to UNE-EN ISO 9513 standard.
    • Class 1 and 2 strain gage chains according to UNE-EN ISO 9513.

    (*) Dynamometers in tensile and compression directions.

    Torque calibrations

    • Dynamometric tools (in dextrorotating direction) of the types defined in the UNE-EN ISO 6789:2004 standard.

    Hardness calibrations

    • Rockwell hardness testers scales A, B and C by the indirect method according to UNE-EN ISO 6508-2.

    (*) Brinell hardness testers by the indirect method according to Standard UNE-EN ISO 6506-2.
    (*) Vickers hardness testers by the indirect method according to UNE-EN ISO 6507-2.
    (*) Shore A and D hardness testers.

  • Pressure calibration

    PRESSURE INSTRUMENTS

    In the ITA we can measure the pressure magnitude in both hydraulics and pneumatics, in a wide calibration range (up to 600 bar in hydraulics and up to 20 bar in pneumatics).

    Pressure calibrations

    • Hydraulic and pneumatic relative pressure gauges in laboratory.
    • Hydraulic and pneumatic relative pressure gauges “in situ”.
    • Pressure sensors with indicator.
    • Pressure transducers.
  • Electrical calibration

    VOLTAGE, CURRENT AND RESISTANCE INSTRUMENTS

    In addition to performing calibrations in ITA’s laboratories (permanent laboratory), we can calibrate equipment for the generation and measurement of electrical parameters (voltage, current and resistance) at the customer’s facilities (“in situ”).

    Activities marked with (*) are not covered by ENAC accreditation.

    Calibrations of electrical equipment and components

    • Voltmeters, Ammeters and Digital Multimeters up to 6 ½ digits.
    • Loops and Amperimetric Clamps.
    • Ohmmeters, Earth Meters and Insulation Meters (up to 5kV).
    • B.V. Testers, Power Network Analyzers and Process Calibrators.
    • Multifunction calibrators.
    • Simulators and Temperature Indicators.
    • Timers.
    • Power Supplies.
    • Resistors, Decades of Resistance Boxes.

    (*) Lux meters (up to 2000 lux).

  • Temperature and humidity calibration

    THERMOMETERS, STOVES, THERMOSTATS, RECORDERS...

    The services provided consist of the calibration of temperature and humidity measurement and control equipment, both in a permanent laboratory and at the customer’s facilities, in a range from 40ºC to 1200ºC.

    Activities marked with (*) are not covered by ENAC accreditation.

    Calibrations of thermometers, temperature and humidity equipment

    • Platinum Resistance Thermometers (Pt-100).
    • Rod, Analog and Digital Thermometers.
    • Temperature Recorders, Regulators and Thermographs.
    • Stoves, Ovens, Thermostatic Baths, Dry Block Ovens, Digesters, Thermocyclers, Freezers, Refrigerators, Climatic Chambers, Incubators, Thermal Installations, Climatic Rooms, etc.
    • Installations for the Thermal Treatment of wood, according to ISPM15(2009), Order AAA/458/2013 of March 11.
    • Thermocouples, Thermohygrometers, Hygrometers, Humidity Recorders.

    (*) Autoclaves.

  • Legal metrology

    NON-AUTOMATIC WEIGHING INSTRUMENTS

    ITA is an Inspection Entity accredited by ENAC and an Authorized Body by the Government of Aragon to carry out the metrological control of non-automatic weighing instruments.

    Inspection Entity accredited by ENAC with accreditation No. 411/EI712 and Authorized Body by the Government of Aragon with registration No. 10-OV-0003 to perform metrological control in its phases of periodic verification and verification after repair or modification of non-automatic weighing instruments.

ENAC Accreditations for the Calibration and Legal Metrology Laboratory:

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