GOST 16190-70

DC switches of voltage above 1000 V for traction substations and linear devices traction power railway. General specifications

Wooden T-squares. Specifications

Acoustics. Determination of sound power levels of noise from air-terminal devices, air-terminal units, dampers and valves by measurement in a reverberation room

Residual current operated circuit-breakers with integral overcurrent protection for household and similar uses (RCBOs). Part 1. General rules

Electrical apparatus for use in the presence of combustible dust. Part 1. Electrical apparatus protected by enclosures and surface temperature limitation. Section 1. Specification for apparatus

Spiral bevel gear pairs. Calculation of geometry