PNST 450-2020

Explosion-proof mine low-voltage automatic switches. Technical requirements. Test methods

Numerical modeling of physical processes. Numerical simulation of subsonic flows of viscous liquids and gases. Software validation

Medical devices. X-Ray therapy apparatus with anode voltage from 10 to 300 kV. Technical requirements for governmental purchases

Land reclamation. Methodology for remote assessment of technical and environmental conditions

Assembling. Terms and definitions

State system for ensuring the uniformity of measurements. National standard. Standard reference data. Copper-zinc alloys. Temperature coefficient of linear expansion and electrical resistivity for the temperature range from 300 K to 2/3 temperature of melting