Calibration | Metrology
The main purpose of calibration is to create metrological traceability of the measuring instruments data to higher order reference standards. Calibration of all measuring instruments is conducted according to the Act on Metrology No. 505/90 Coll. as amended. Calibration services are used especially in chemical, food, agricultural and biological laboratories as well as in laboratories in hospitals, in hygiene and veterinary stations, in waterworks laboratories, in drug substances control and environmental control facilities, in power engineering laboratories, geology and in other related fields.
Authorised metrology centre, official mark K 123 – The Czech office for standards, metrology and testing (Úřad pro technickou normalizaci, metrologii a státní zkušebnictví – ÚNMZ) authorised Institut pro testování a certifikaci, a.s. (Institute for testing and certification) (ITC) for verifying the following specified meters: elements of meters and measuring assemblies of flowing liquid volumes, temperature gauges (resistance temperature sensors as elements of meters and measuring assemblies of flowing liquid volumes in the range from -20 °C to 100 °C.) and heat and cold meters and their elements (resistance temperature gauges, as elements of temperature meters, in the range from 0 °C to 420 °C).
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LIST OF AKL WORKPLACES No. 2222
Workplace Uherské Hradiste | Workplace Zlin |
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Workplace Prague | Workplace Brno |
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ELECTRIC QUANTITY METERS
Quantity | Range | The best measuring capacity [±] |
Direct current voltage | (10 ÷ 500) mV
500mV ÷ 1100 V |
from 2,4 µV
from 4,7 ppm |
Direct current | (1 mA ÷ 20 mA)
20 mA ÷ 100 A tong measurement 20A ÷ 1000A |
from 3,5 nA
from 0,011 % from 0,15 % |
Alternating current voltage | (0,1 ÷ 40 )mV/(10 Hz ÷ 1 MHz)
40 mV÷ 40 V/(10 Hz ÷ 1 MHz) (40 ÷ 200) V/(10 Hz ÷ 200 kHz) (200 ÷ 750) V/(45 Hz ÷ 100) kHz (750 ÷ 1100) V/(45 Hz ÷ 30 kHz) |
from 8 µV
from 0,01% from 0,01% from 0,02% from 0,015% |
Alternating current | (1 ÷ 100) mA/(10 Hz ÷ 5 kHz)
(100 mA ÷ 2 A)/(10 Hz ÷ 5 kHz) (2 ÷ 11 A)/(10 Hz ÷ 20 kHz) (11 ÷ 20A)/(40 ÷ 400)Hz (20 ÷ 50A)/(40 ÷ 400)Hz (50 ÷ 100A)/(40 ÷400)Hz tong measurement 20A ÷ 1000A / (40 ÷ 400) Hz |
from 0,015µA
from 0,03% from 0,06% from 0,65% from 1% from 5,1% from 0,2 ÷0,6 % |
High frequency voltage | 20dBmV (10 mV) ÷ 39 V (152dBmV)/(0,1 ÷ 2000) MHz | from 2,6% |
High frequency output
(impedance 50Ω) |
0,01 mW (-20dBm)÷ 3 W (35dBm)/(0,1MHz ÷ 40GHz) MHz
3 W (35dBm)÷ 20 W (40dBm)/(1 ÷ 4000) MHz |
from 5 %
from 4,2% |
High-frequency attenuation | 0 dBm ÷ 100 dBm /(10 ÷ 7000) MHz
3 – 30dB (7GHz – 40GHz) |
from 5 %
from 4,2% from 0,04dBm |
Frequency modulation | 0,1 kHz ÷ 500 kHz /carrier 4,25 MHz ÷ 1000 MHz, modulation 0,03÷ 100kHz | from 0,025 kHz |
Amplitude modulation | 2 % ÷ 100 % /carrier 55 kHz ÷ 1000 MHz, modulation 0,03÷ 100kHz | from 3,1 % |
D.C. resistance | 0,0001 Ω ÷ 100 MΩ | 10 µΩ ÷ 18 MΩ |
A.C. resistance | 0,1 ÷ 100 MΩ decimal values / 50Hz ÷ 2 MHz | from 0,01 |
Insulation resistance | 10 kΩ ÷ 5 MΩ
5 MΩ ÷ 10 GΩ |
0,25%
1,5% |
Capacitance | 2pF ÷ 100 µF / 50 Hz ÷ 100kHz
(not accredited: as much as 1MHz) |
from 0,1% |
Capacitance | 1pF ÷ 100 µF decimal values / 1kHz | from 0,01% |
Inductance | 1µH ÷ 100 H / 1kHz (not accredited: as high as 100kH) | from 0,4% |
Inductance | 1µH ÷ 10 H decimal values / 1kHz | from 0,1% |
Measured instruments and equipment
Panel-mounted instruments | A – meter, V – meter, W – meter etc. |
Laboratory measuring instruments | analogue and digital V - meters, A - meters, W – meters |
L, C, R normal lines, decades | |
LF and HF voltage generators, LF and HF synthetizers (BM, TR etc.) | |
RLCG bridges | |
analogue and digital multimeters (METEX, METRAHIT, KEITHLEY, FLUKE, M1T, HP, SCHLUMBERGR, SOLARTRON, VOLTCRAFT, NORMA etc.) | |
osciloscopes and polyscopes (BM, PM, TEKTRONIX, KIKUSUI, HP etc.) | |
analyzátory spektrální a obvodové, měřiče a zdroje modulací, modulační analyzátory | |
voltage calibrators (d-c, a-c), current sources (d-c, a-c) | |
HF voltmeters and wattmeters | |
attenuators and terminating elements | |
Special measuring instruments and testers | navigation and communications equipment (NAV, ATC, KTS, CMC etc.) |
Measuring instruments for external inspectors | measuring instruments for inspections of electrical objects (ZO 1, REVEX, MEDITEST etc.) |
measuring instruments for inspections of power lines (EASYTEST, PROFITEST, REVITESTER, PU, PK, QU etc.) | |
measuring instruments of insulation, contact and earth resistances (PU, METRISO, DIGIOHM etc.) |
FREQUENCY AND TIME
Quantity | Range | The best measuring ability [±] |
Frequency, generation: | (0,1; 1; 5; 10) MHz
0,1 Hz ÷ 31,1 MHz (31,2 ÷ 500) MHz (500 ÷ 40) GHz |
2,3 x 10-11
from 2 x 10-5 0,5 Hz 50 Hz |
Frequency, measurement: | (0,1; 1; 5; 10) MHz
0,1 Hz ÷ 1 kHz 1 kHz÷ 500 MHz (500 ÷ 1400) MHz |
3, 5 x 10-7
3 x 10-7 3 x 10-10 1 x 10-7 |
Time, time interval: | 1 ÷ 50 ns
50 ns ÷ 200ns 200 ns ÷ 1 ms 10 s÷ 50 s 50 s ÷ 120 h |
0,75 ns
1,8% 1,2% 0,85 % 0,06 s |
Time at the customer's place | (0 ÷ 5) h
(5 - 24 h) h |
0,7 s
1,9 s |
Revolutions: | (10 ÷ 10000) RPM
10000÷ 999999 RPM |
0,006 RPM
0,06 RPM |
RPM at the customer's place: | (5 ÷ 999,99) RPM
(1 000 ÷ 9 999) RPM (10 000 ÷ 99 999) RPM |
0,1 RPM
0,9 RPM 7 RPM |
Measured instruments and equipment
- counters, frequency meters
- generators, oscillators, frequency analyzers
- frequency converters and changers
- alternating V and I sources and calibrators
- stop watches, time meters
- switching clocks, time relays
PRESSURE GAUGES
Quantity | Range | The best measuring ability [±] |
Deformation pressure gauges
underpressure (air) underpressure, overpressure (air) overpressure (oil) |
(-98 až < -12) kPa
(>= -12 až =< 12) kPa (> 12 až 160) kPa (0,1 až 60) MPa |
0,1 kPa
0,015 kPa 0,1 kPa 0,05% MH |
Pressure converters
overpressure (oil) overpressure (air) overpressure (air) underpressure (air) absolute pressure |
(0,1 až 60) MPa
(0,4 až 2) MPa (0 až 400) kPa (0 až 95) kPa (0 až 120) kPa |
11 kPa + 0,046% MH 0,12 kPa + 0,046% MH
0,04 kPa + 0,046% MH 0,04 kPa + 0,046% MH 0,15% |
Digital pressure gauges
overpressure (oil) overpressure (air) overpressure (air) underpressure (air) absolute pressure |
(0,1 až 60) MPa
(0,4 až 2) MPa (0 až 400) kPa (0 až 95) kPa (0 až 120) kPa |
11 kPa + 0,046% MH 0,12 kPa + 0,046% MH
0,04 kPa + 0,046% MH 0,04 kPa + 0,046% MH 0,15% |
Measured instruments or equipment
- deformation pressure gauges
- pressure transducers
- digital pressure gauges
Calibration of pressure gauges can be also performed directly on the customers site
TEMPERATURE METERS
Quantity | Range | The best measuring ability [±] |
Glass thermometers
(division >= 0.1 °C) |
(> -40 až < 0 ) °C
0 °C ( >0 až =< 100 ) °C (>100 až =< 250 ) °C |
0,70 °C
0,05 °C 0,07 °C 0,15 °C |
Resistance temperature sensors | 0 °C
(>0 až =< 100 ) °C (>100 až =< 250 ) °C (>250 až =< 350 ) °C (>350 až =< 600 ) °C |
0,03 °C
0,05 °C 0,10 °C 0,20 °C 0,25 °C |
Thermoelectric temperature sensors | (0 až =< 250 ) °C
(>250 až =< 600 ) °C (>600 až =< 700 ) °C (>700 až =< 1200 ) °C |
0,20 oC
0,30 oC 1,2 oC 1,5 oC |
Direct reading thermometers (electronic, mechanical) | 0 °C
(> 0 až =< 100 ) °C (>100 až =< 250 ) °C (>250 až =< 420 ) °C (>420 až =< 600 ) °C (>600 až =< 700 ) °C (>700 až =< 1200 ) °C |
0,03 °C
0,05 °C 0,07 °C 0,1 °C 0,4 °C 1,4 °C 1,6 °C |
Measured instruments or equipment
- platinum resistance thermometers (mimo rozsah akreditace)
- thermoelectric couples
- glass thermometers
- analogue and digital thermometers
The laboratory also provides calibration of temperature meters (temperature sensors, temperature controllers, temperature recorders), which are a fixed part of various process equipments (furnaces, drying lines, presses, plastics moulding machines etc.). The calibration is conducted directly in the plants, with the temperature range of (-20 ÷ +1,200) °C.
RELATIVE HUMIDITY
Quantity | Range | Best measurement capability [±] |
Relative air humidity | (10 ÷ 70) %
(70 ÷ 95) % |
3,8 %
4,0% |
Measured instruments or devices
- (hair) absorption-distortion hygrometers
- electronic hygrometers
- optical dew-point hygrometers
- aspiration hygrometers
- hygrometers for climatic and humidity chambers
The laboratory also provides on-site calibrations of humidity meters.
LENGTH METERS
Meter | Range | The best measuring ability [±] |
Slide gauges | (0 ÷ 200) mm | 6 µm |
Micrometers | (0 ÷ 200) mm | 1,1 µm |
Dial gauges and digital meters | (0 ÷ 100) mm | from (0,7 + 1 L) µm |
Cylindrical and flat gauges | (0 ÷ 200) mm | (0,35 + 3 L) µm |
Thread gauges, rings | (0 ÷ 200) mm | (0,7 + 7 L) µm |
Precise plug gauges, measuring wires | (0 ÷ 50) mm | (0,35 + 1 L) µm |
Depth gauges | (0 ÷ 200) mm | 8 µm |
Micrometer depth gauges | (0 ÷ 100) mm | 1,1 µm |
Steel gauges | (0 ÷ 250) mm | 0,05 µm |
Angle bars | (0 ÷ 180) o | 10“ |
Angle gauges | (0 ÷ 360) o | 1“ |
Shape gauges | (0 ÷ 300) mm | (0,5 + 1 L) µm |
Gauge blocks | do 100 mm | (0,2 + 2 L) µm |
Other calibrated meters (outside the accreditation)
- tape rules up to 10 m
- tape measures up to 50 m
- calliper rules up to 1000 mm
- altimeters up to 600 mm
- tilting tables for artificial horizon
- water levels and inclinometers
SPECTROPHOTOMETERS
Quantity | Range | The best measuring ability [±] |
Absorbance in the area of UV spectrum | (0 ÷ 1,45) | 0,0055 |
Absorbance in the area of VIS spectrum | (0 ÷ 1)
(1 ÷ 2) |
0,0020
0,0030 |
Radiation wave length in the area of UV-VIS spectrum | (200 ÷ 800) nm | 0,035 nm |
Wave number in the are of IR spectrum | (4 000 ÷ 400) cm-1
(10 000 ÷ 4000) cm-1 |
0,30 cm-1
0,60 cm-1 |
Colorimetric coordinates L*, a*, b* | L* = (25 ÷ 99)
a* = (-20 ÷ 35) b* = (-20 ÷ 85) |
Colorimetric coordinates L*, a*, b* at lighting C and 65 |
Measured instruments or equipment
- spectrophotometers for ultraviolet and visible area
- infra-red spectrophotometers
Unaccredited calibrations:
- calibration filters: holmium – oxide, didym, neutral grey,
- spark spectrophotometers (by agreement)
- possible calibrations of other types of spectral meters after mutual consultation. Calibration services Calibrations of spectrophotometers are used mainly in chemical, food-processing, agricultural and biological laboratories, in hospitals, in hygiene and veterinary stations, in waterworks laboratories, in drug testing and environmental workstations, laboratories in energetics, geology and other relative branches.
HARDNESS OF PLASTICS AND RUBBER MATERIALS
Quantity | Range | The best measuring ability [±] |
Hardness SHORE A, C, D | (0 ÷ 100) Sh | 0,41 ShA (corresponds to 31 mN)
0,16 ShC; 0,16 ShD (corresponds to 71 mN) |
Hardness IRHD / N | (10 ÷ 100)° IRHD | 0,2° IRHD |
Hardness IRHD / M | (10 ÷ 100)° IRHD | 0,9° IRHD |
Measured instruments or equipment
- Shore A, C, D type hardness testers
- IRHD/N, IRHD/M type hardness testers
OZONE MEASUREMENT
Quantity | Range | The best measuring ability [±] |
Ozone concentration | (0 ÷ 1000) nmol/mol
(1000 ÷ 5000) nmol/mol |
0,025 nmol/mol
2,5 % of the measured value |
Measured instruments or equipment
- Ozonators and ozone developers
CONTACTS
Ing. Miroslav Netopil
head of the Calibration Laboratory (workplace Uherske Hradiste)
Ing. Přemysl Vrba
deputy of head of the Calibration Laboratory (workplace Uherske Hradiste)
Ing. Jaroslav Ambróš
manager of AKL (workplace Zlín)
RNDr. František Kesner, Ph.D.
assistant manager of AKL (workplace Prague)
- workplace Uherské Hradiste
Institute for testing and certification, Inc.
Sokolovska 573
686 01 Uherské Hradiste, Czech Republic
- workplace Brno
Institute for testing and certification, Inc.
Areál VUCHZ,
Krizikova 70
612 00 Brno, Czech Republic
- workplace Prague
Krelovicka 970/6
104 00 Praha 10 - Uhrineves, Czech Republic
- workplace Zlin
Institute for testing and certification, Inc.
trida Tomase Bati 299, Louky, 763 02 Zlin, Czech Republic