GOST 34938-2023

Radial and axial fans. Aerodynamic testing methods

State system for ensuring the uniformity of measurements. State special standard and state hierarchy diagram for variable pressure measuring instruments in the range of 1x10 in 2 degree to 1x10 in 6 degree Pa for frequencies of 5x10 in minus 2 degree to 1x10 in 4 degree Hz, durations from 1x10 in minus 5 degree to 10 s under constant pressure up to 5x10 in 6 degree Pa

Gas-fired central heating boilers. Part 1. Technical requirements and test methods

Flushing tanks with accessories. Ceramic flushing tank with side starting, directly connected to WC. Design and principal dimensions

Lamps for road vehicles. Dimensional, electrical and luminous requirements

Electrical insulating materials. Industrial rigid laminated sheets based on thermosetting resins for electrical purposes. Part 2. Methods of test