GOST 17291-71

Hexagon nuts with flange. Product grade A. Specifications

Optical fibres. Part 1-47. Measurement methods and test procedures. Macrobending loss

Filter air purification means for collective protection objects. Method for determination of air-tightness degree

Solid mineral fuels. Ultimate analysis

United power system and isolated power systems. Operative-dispatch management. Ensuring coordinated operation of centralized systems of automatic control of frequency and active power flows and automatic management of active power of hydroelectric power stations. Norms and requirements

Refractories. Terms and definitions