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Services offered by the National Metrology Institute

Services offered by the National Metrology Institute

To learn about the services offered by the National Metrology Institute, please select an area of interest:

Thermometry

comparison of reference temperature cells and assessment of their metrological characteristics.
assessment of the metrological characteristics of the standard platinum resistance thermometers and their calibration at the following reference temperatures of the ITS-90 scale (in the cells): mercury, gallium, tin, zinc, aluminum, silver, copper.
calibration of platinum resistance thermometers, thermoelectric thermometers (thermocouples), calibration of glass thermometers by means of comparison as well as adjustment and calibration of electronic thermometers and temperature measurement systems in the range of -196 °C to 1200 °C.

Notes. Prices specified do not include VAT. Customers ordering several calibrations are entitled to a discount.

Uncertainties for the measurements with capabilities declared in the Key comparison database can be found via this link. Having selected the entries of interest (or having pressed the button „SELECT ALL“), press the button „EXPORT XLS“.

To order a calibration, please contact the head of the Temperature Standard Laboratory, Mr. Kęstutis Mikalauskas, phone: +370 652 81317.

Time and frequency

No.	Service	Remarks
1	Dissemination of the UTC(LT) time-scale to subjects of the Lithuanian economy (with continuous control of metrological traceability)	The service is provided via the NTP and PTP protocols
2	Calibration of frequency counters	Frequency is measured directly. Frequency range: 1 Hz – 200 MHz
3	Calibration of frequency generators	Frequency is measured directly. Frequency range: 1 Hz – 200 MHz
4	Calibration of frequency generators	The method of time-phase difference is applied. Calibration is performed at the fixed frequency points: 100 kHz, 1 MHz, 5 MHz, 10 MHz
5	Calibration of time difference sources and meters as well as pulse width sources and delay lines	Range: 0 s – 1 s
6	Calibration of GPS receivers
7	Calibration of mechanical time measurement devices
8	Calibration of digital time measurement devices
9	Assessment of characteristics of signal generators in frequency and time domain
10	Assessment of temporal characteristics of digital oscilloscopes
11	Calibration of experimental and non-standard time measurement devices

Calibrations are carried out at a room temperature, under the normal conditions.

To order a calibration, please contact the head of the Time and Frequency Standard Laboratory, Mr. Rimantas Miškinis, phone: +370 5 2620194.

Electricity

Service	Range(s)
Calibration of a standard resistor	1 mΩ – 1 TΩ
Calibration of a resistor set	1 Ω – 1 GΩ
Calibration of a high resistance resistor set	1 GΩ – 1 TΩ
Calibration of an ohmmeter, voltmeter, multimeter, or a calibrator	1 Ω – 1 TΩ, 0,1 V – 1000 V (DC), 0,1 V – 1000 V (10 Hz – 1 MHz), 100 μA – 100 mA (DC)
Calibration of a resistance bridge	1 Ω – 1 GΩ
Calibration of a DC voltage source of two nominal values against a Zener or the primary (Josephson) voltage standard	1.018 V, 10 V
Calibration of an AC (from 10 Hz to 1 MHz) voltage source	2 mV – 1000 V
Calibration of a DC current source	100 μA – 100 mA

Uncertainties for the measurements with capabilities declared in the Key comparison database of BIPM can be found via this link. Having selected the entries of interest (or having pressed the button „SELECT ALL“), press the button „EXPORT XLS“.

Calibrations are carried out at a temperature specified by the customer in the range from 18 ^oC to 26 ^oC.

To order a calibration, please contact the responsible person of the Electrical standards laboratory, Mr. Andrius Bartašiūnas, phone: +370 5 261 8065.

Length

No.	Service	Range
1	Calibration of contact comparators for gauge blocks
2	Calibration of standard and working gauge blocks of the highest precision	(0.5-100) mm
3	Calibration of micrometers –MK, MZ types, and digital ones	(0-100) mm
4	Calibration of callipers	(0-1000) mm
5	Calibration of dial indicators of the IČ type and digital ones with the division value of 0.001 mm, 0.002, and 0.01 mm	(0-50) mm
6	Calibration of indicators with the division value of 0.002 mm	(0-2) mm
7	Calibration of indicators with the division value of 0.001 mm	(0-1) mm

To order a calibration, please contact the head of the Length Standard Laboratory, Mrs. Lilija Chaleckienė, phone: +370 612 16739.

Ionizing radiation

No.	Service	Remarks
1	Calibration of ionization chambers (dose calibrators) used in nuclear medicine	Traceability for the following radionuclides: ¹⁸F, ⁶⁷Ga, ⁹⁰Y, ^99mTc, ¹¹¹In, ¹²³I, ¹²⁵I, ¹³¹I, ¹³⁷Cs, ¹⁵³Sm, ¹⁷⁷Lu, ²⁰¹Tl, ²²³Ra
2	Calibration of radiometers (gamma-ray spectrometers)	Atomtex AT1320, BRIGHTSPEC, and equivalent
3	Calibration of dose rate meters (monitors)	Rados RDS-30, RaySafe, Atomtex AT1125, and equivalent; up to 5 points
4	Calibration of surface contamination meters	Contamat and equivalent; up to 5 points
5	Calibration of sources of ionizing radiation	β, γ, α emitters / point and plate (e. g., disk-shaped) sources
6	Determination of activity concentration of radionuclides in water	γ emitters; performed from 2 litres
7	Determination of bulk activity of tritium in water	Performed from 0.5 litre
8	Determination of activity concentration of radio-carbon (¹⁴C) in water	Performed from 1 litre; prices for other matrices – up to agreement
9	Determination of activity concentration of radio-nickel (⁶³Ni) in water	Performed from 1 litre; prices for other matrices – up to agreement
10	Determination of activity concentration of radio-strontium (^89/90Sr) in water	Performed from 1 litre; prices for other matrices – up to agreement
11	Determination of activity concentration of plutonium (²³⁸Pu, ^239/240Pu) in water	Performed from 5 litres; prices for other matrices – up to agreement
12	Production of a sample for testing	Ash of bio-fuel, bio-fuel (chipped wood), and other matrices
13	Production of an unquenched scintillating solution in the standard geometry of an LSC vial	³H, ¹⁴C, ³⁶Cl, ⁶³Ni, ⁹⁰Sr+⁹⁰Y, ⁹⁹Tc, ¹²⁹I, ¹³⁷Cs
14	Calibration of a gamma-ray spectrometer with an HPGe detector	In the range of 46.5 keV – 2615 keV for a selected geometry
15	Calibration of a liquid scintillation counter (spectrometer)	³H, ¹⁴C, ³⁶Cl, ⁹⁰Sr+⁹⁰Y, ⁹⁹Tc
16	Calibration of an alpha- spectrometer	²³⁴U, ²³⁸U, ²⁴¹Am, ²⁴²Pu

Upon the customer’s request, corrections to the operation of the customer’s device may be introduced, if possible.

To order a calibration or another service, please contact the head of the Ionizing Radiation Metrology Laboratory, Mr. Arūnas Gudelis, phone: +370 5 264 4855, +370 620 17793.

Amount of substance

1. Development, optimization, and validation of new calibration and measurement methods according to the requirements of the international standard ISO/IEC 17025.

2. Measurements of amount of substance/concentration in different matrices, with metrological traceability ensured, by the following methods:

2.1) gas chromatography with flame ionization detection;

2.2) gas chromatography with mass spectrometric detection;

2.3) thermal desorption – gas chromatography with mass spectrometric detection (for VOCs identification);

2.4) liquid chromatography with spectrophotometric detection (UV/Vis);

2.5) liquid chromatography with mass spectrometric detection;

2.6) elemental and isotopic analysis.

3. Certification of reference materials according to the requirements of the international standard ISO 17034.

4. Organization and assessment according to requirements of the international standard ISO 17034 of interlaboratory comparisons (ILC) and proficiency tests (PT).

5. Consultations on various issues of chemical measurements and metrological traceability as well as ensuring quality in the field of chemistry.

To order a calibration or another service, please contact the responsible person of the National Standard of Amount of Substance, Mr. Evaldas Naujalis, phone: +370 5 261 2758, +370 698 04035.

Karolis Stašys

Innovation Manager / Inovacijų vadybininkas

Tel.: +370 629 85166
El.p.: karolis.stasys@ftmc.lt