GOST 21822-87

Plain bearings. Peripheral length checking of thin-walled half bearings

Toys. General safety requirements and methods of tests. Mechanical and physical properties

Marine, locomotive and industrial engines. General safety requirements

General structural Portland clinker cements. Specifications

Reliability for constructions and foundations. General principles

State system for ensuring the uniformity of measurements. Means of measuring spectral density of radiance, spectral density of radiant intensity and spectral density of irradiance in the wavelength range of 0,2-25,0 mkm. Verification procedure