State Scientific Center of the Russian Federation

20.01.2026

Вторник

14 : 01 : 30, 123

State Scientific Center of the Russian Federation

ГЭТ 48-2018 (НИЛ 2412)

Standard name:

  • ГЭТ 48-2018 State Primary Standard of the Unit of Radiance of Infrared Radiation

Type of measurement:

  • Optical and optical-physical measurements

Structural division: name НИО\НИЛ:

  • Laboratory of standards and scientific research in the field of infrared radiometry and applied pyrometry

Guardian Scientist:

  • Sild Yuri Alfredovich, PhD

Year of creation:

  • 1973

Year of re-confirmation:

  • 2018

Operating principle:

  • The operating principle of the standard is based on the reproduction of constant levels of energy brightness by standard emitters made in the form of blackbody models at temperatures fixed by phase transitions of pure substances - the reference points of the МТШ-90: mercury, water, gallium, indium, tin, zinc, aluminum and copper.

Composition of the standard:

Consists of: a set of complete thermal emitters, made in the form of models of an absolutely black body based on the phase transitions of pure substances: mercury, water, gallium, indium, tin, zinc, aluminum and copper; radiometers - comparators

Verification diagram:

  • Heads the state verification scheme for measuring instruments for the radiance and radiation intensity of thermal sources with temperatures from 220 to 1360 K.

Scope of application:

Ensuring the uniformity of measurements of the unit of energy radiance in areas related to the country's defense capability, countering the terrorist threat, ecology, energy conservation, healthcare, and other branches of science and industry.

Results of applying the standard:

The ability to verify and calibrate modern secondary standards and high-precision radiance measurement instruments, used in particular to maintain the country's defense capability and counter terrorist threats, has been ensured, and will ensure confirmation of the declared measurement capabilities at a modern level.

The total number of measuring instruments traceable to ГЭТ 48-2018:

Tens of thousands

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

ССТ K3; COOMET.T-K3; COOMET.T-K3.1; COOMET.T-K3.2
9 lines in the database CIPM MRA.

Unique technical installations as part of the standard:

None

PHOTO:

Общие виды комплексов приведены на рисунке 1 и 2.