Measuring standards

NAME OF STANDARDSMEASUREMENT RANGEERROR
1.National reference standard of unit of length0.1 to 100 mm± (0.02÷0.03) μm
2.National reference standard for unit of massfrom 1 mg to 20 kg± (0.03÷1) mg
3.National reference standard for units of time and frequency“5 MHz; 100 MHz; 1 Hz; 5 MHz and 100 MHz, (1 ± 0.2) V”± 1∙10-12
4.National reference standard for the unit of electrical capacity“from 1000 to 100000 pF”“from 2.0∙10-2 to 2.0∙10-1%”

 

5.National reference standard for the unit of inductance0.1 μH to 1.0 H± (0.2÷0.5)%
6.National reference standard of pressure unit0.02 to 60 MPa (0.2 to 600 bar)5∙10-4
7.National reference standard for AC voltage unit0.1÷300 V± 5∙10-4%
8.National reference standard for unit of flow and quantity of liquidfrom 0.02 to 200 m3/h0.3%
9.National reference standard for units of mass fraction of ammonia, hydrocyanic acid, nitrogen dioxide, sulfur dioxide and chlorine in air0.5 to 20 mg/m3, 2 to 20 mg/m3, 1 to 10 mg/m3, 1 to 100 mg/m3, 0.15 to 1.50 mg/m3

 

“± 8%, ± 5%”
10.National reference standard for spectral directional transmittance and optical density“from 185 to 3300 nm, from -6 to 6 Abs”± 0.003 Abs
11.National standard of units of kerma in air, exposure dose and their rates of X-ray and gamma radiation“from 7 ∙ 10–9 to 3 ∙ 106 Gy from 7 ∙ 10–10 to 45 Gy/s from 33 to 1250 keV”± 0.5%
12.National reference standard for temperature unit-Kelvin“from minus 38.8344 °С to 961.78 °С”(0.0002 ÷ 0.01) °С
13.Standard unit of absolute pressure1 10-8-4 105 Pa0.310-2 – 0.3 Pa

 

14.Platinum resistance thermometers for reference purposes0-630.74 °C0.01 °C
15.Standard unit of pressure0.007 – 7 MPa3 10-4 MPa
16.An exemplary force measuring unit20 – 1000 kN0.02%
17.Comparator for checking and calibrating gage blocksup to 100 mm1st rank
18.Sample for photometric measurements175 — 3300 nm±0,0003 А