State system for ensuring the uniformity of measurements. Pipe piston installations. Verification procedure

Standard published on 1.8.2023

State system for ensuring the uniformity of measurements. Volume consumption and volume of natural gas. Methodology (method) of measurements using microthermal gas meters

Standard published on 1.12.2023

State system for ensuring the uniformity of measurements. Metals and alloys. Instrumental indentation test for hardness and other material parameters. Part 3. Technical requirements and calibration of reference test blocks

Standard published on 29.2.2024

State system for ensuring the uniformity of measurements. Classification of measuring instruments

Standard published on 1.1.2025

State system for ensuring the uniformity of measurements. Libraries of mass spectra of psychoactive compounds and their metabolites. General requirements (requirements for data reliability, completeness of information, updating and content)

Standard published on 1.12.2024

Acetone liquid and gaseous. Density, enthalpy, entropy, isochoric and isobaric heat capacities at temperatures from 180 K to 550 K and pressures up to 100 MPa

Standard published on 1.12.2024

Helium-4 liquid and gaseous. Density, enthalpy, entropy, isochoric and isobaric heat capacities at temperatures from 2.5 K to 500 K and pressures up to 100 MPa

Standard published on 1.12.2024

Beryllium. Temperature coefficient of linear expansion and specific heat in the temperature range from 260 K to 870 K

Standard published on 1.12.2024

Radionuclide sources of alpha-, beta- and photon radiation. Technical requirements to standards for the calibration, verification of surface radioactive contamination monitoring devices (monitors)

Standard published on 30.3.2024

State system for ensuring the uniformity of measurements. Frequency and/or time standards. Methods for assessing basic metrological characteristics using signals transmitted by global navigation satellite

Standard published on 30.9.2024