State Scientific Center of the Russian Federation

20.01.2026

Вторник

14 : 01 : 30, 123

State Scientific Center of the Russian Federation

ГЭТ 23-2010 (НИО 231)

Standard name:

  • ГЭТ 23-2026 State primary standard of the unit of pressure - the pascal

Type of measurement:

  • Pressure measurements, vacuum measurements

Structural division: name НИО\НИЛ:

  • Research Department of State Standards in the Field of Pressure Measurements

Guardian Scientist:

  • Teteruk Roman Anatolievich, Ph.D.

Year of creation:

  • 1954

Year of re-confirmation:

  • 2026

Composition of the standard:

  1. Reference settings:
    • Installation type 1 No. 1;
    • Installation type 1 No. 2
    • Installation type 2 No. 1
    • Installation type 3 No. 1
    • Installation type 4 No. 1
    • Installation type 5 No. 1
  2. Set of measuring piston systems (hereinafter referred to as IPS);
  3. Special cargo kits;
  4. Instruments for measuring temperature and environmental parameters.

Main metrological characteristics

Characteristic name Meaning
Working environment Kerosene Air/nitrogen Transformer oil
Measurement range (from Pmin to Pmax), MPa from 0,02 to 10 from minus 0.1 to minus 0.003
from 0.0005 to 10
from 0,02 to 10
Standard deviation of the measurement result S0 for n independent measurements (n=10), no more than, % 0,00025
Unexcluded systematic error, θ0, no more than, % 0,0011
Standard uncertainty assessed according to Type A, uA0, no more than, % 0,00025
Standard uncertainty assessed by Type B, uB0, no more than, % 0,00063
Total standard uncertainty, uc, no more than, % 0,00068
Expanded uncertainty U at coverage factor k = 2, no more than, % 0,0014

Verification diagram:

  • “State verification scheme for measuring instruments of excess pressure up to 4000 MPa”, approved by the Order of the Federal Agency for Technical Regulation and Metrology dated 2026 No.

Scope of application:

Oil and gas product metering units, aerospace, electronics, defense and other branches of national industry.

Results of applying the standard:

The need for high-precision measurements of excess pressures, testing of new types of pressure measuring instruments has been met, and solutions to priority areas of development in science, technology, and engineering in the Russian Federation have been provided at a higher level.

The total number of measuring instruments traceable to ГЭТ 23-2026:

Several million measuring instruments, including hundreds of thousands of measuring instruments used as standards

Ensuring the uniformity of measurements, participation in the CIPM MRA program:

Line Range Expanded uncertainty Transfer Method
COOMET-M-RU-00000AD1-1 from 0.05 to 10 MPa from 8 10-6 to 2 10-5 Direct comparisons with the standard
COOMET-M-RU-00000AD2-1 from 10 to 60 MPa 5 · 10-5 Direct comparisons with the standard
COOMET-M-RU-00000AD3-1 from 60 to 250 MPa 5 · 10-4 Direct comparisons with the standard
COOMET-M-RU-00000ABN-1 from -95 to 40 kPa 20 Pa Direct comparisons with the standard

The measuring capabilities of GET 23-2026 have been confirmed by key comparisons of EUROMET.M.P-K3, COOMET.M.P-K1 and COOMET.M.P-K2 (kcdb.bipm.org)

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