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Czech national standards

National (measurement) standard - standard recognized by an national decision to serve, in a country, as the basis for assigning values to other standards of the quantity concerned.

Competent body for the relevant national decision is the Czech office for Standards, Metrology and Testing (COSMT) . Czech National Standards are mostly maintained by the CMI, but also other laboratories may be authorized by the COSMT to develop, maintain and operate national standard. So the Institute of Fotonics and Electronics, Academy of Sciences of the Czech Republic maintains the Czech time and frequency standard.

Acoustics, ultrasound and vibration

standard Codestandardrange, valueresponsible
ECR180-1Acoustic Pressure Standard

 -26 to -28

dB re1V/PaIng. Michal Bartoš 
ECR180-9Standard of Harmonic Linear Vibration0,1 to 150m/s 2Ing. Michal Bartoš 

Electricity and magnetism

standard Codestandardrange, valueresponsible
ECM210-1/13-051DC Voltage Standard

 1 to 10

VIng. Jiří Streit
ECM

212-1/08-038

AC Current Ratio Standard

(0,5 to 5000) A / (1 and 5) A

 Ing. Renata Styblíková , Ph.D.
ECR212-2/09-045AC Voltage Ratio Standard

(1 to 400kV) / 100 V

 Ing. Renata Styblíková , Ph.D.
ECM220-1/03-025Electrical Power Standard at 50 Hz2.5 to 30 000WRNDr. Karel Šefčík, CSc.
ECM230-1/08-043Quantum Standard of DC Electrical Resistance1...100 and 10000OhmIng. Petr Chrobok
ECM240-1/01-016RF Power Standard

1 to 10

1 MHz to 40 GHz

mWIng. Karel Dražil
ECM240-2/03-023Reflection and Transmission Coefficient

0 to 1

0,1 MHz to 50 GHz

 Ing. Karel Dražil
ETR240-3/Antenna Factor Calibration Equipment (30 MHz to 1 GHz)0 to 40dBIng. Karel Dražil
ECM240-5/03-024Field Strength Standard

0.01 to 200

50 kHz to 3 GHz

V/mIng. Karel Dražil
ECM250-1/04-029Capacitance Standard10 and 100pFIng. Jana Horská, Ph.D.
ETR250-2Total Harmonic Distortion (THD) Standard0.001 to 100%Ing. Jiří Streit
ETR250-3Loss Factor Standard0,000001 Ing. Jiří Streit
ECM260-1/01-011Standard of Magnetic Flux10mWb/Ap.f. Josef Kupec, CSc.
ECM260-2/01-012Standard of Magnetic Flux Density0,6mT / Ap.f. Josef Kupec, CSc.
      

Flow

standard Codestandardrange, valueresponsible
ECM140-1/00-008National Standard - Bell Prover

4 to 400

m 3 /hIng. Tomáš Valenta
ECM140-2/00-009National Standard Based on Static Weighing0,15 to 17m 3 /hIng. Tomáš Valenta
ECM140-3/10-048Primary Low Mass Flow Standard GFS1 to 20 000sccmIng. Zdeněk Krajíček
ECR140-8Flow of Water0,05 to 150m 3 /hMgr. Jan Geršl, Ph.D.
ECM140-9/07-035Flow of Technical Liquids0,4 to 400m 3 /hMgr. Jindřich Bílek
ECM160-1/14-055National Standard of Air Speed0,5 to 50m/sMgr. Jan Geršl, Ph.D.

Ionising radiation

standard Codestandardrange, valueresponsible
ECM140-1/00-008National Standard - Bell Prover

4 to 400

m 3 /hIng. Tomáš Valenta
ECM140-2/00-009National Standard Based on Static Weighing0,15 to 17m 3 /hIng. Tomáš Valenta
ECM140-3/10-048Primary Low Mass Flow Standard GFS1 to 20 000sccmIng. Zdeněk Krajíček
ECR140-8Flow of Water0,05 to 150m 3 /hMgr. Jan Geršl, Ph.D.
ECM140-9/07-035Flow of Technical Liquids0,4 to 400m 3 /hMgr. Jindřich Bílek
ECM160-1/14-055National Standard of Air Speed0,5 to 50m/sMgr. Jan Geršl, Ph.D.

 

 

ECM  approved Czech national standard

ECR    CMI standard, Czech reference standard

EPR    Reference  maintained by authorized laboratory, other than CMI

ETR    CMI standard