GOST R 55667-2020

Petroleum products. Determination of colour (ASTM scale)

Macaroni products instant. General specifications

Selection and dimensioning of high-voltage insulators intended for use in polluted conditions. Part 2. Ceramic and glass insulators for a.c. systems

Transmission tooth gears of the traction main railway stock. Raw pieces. Technical specifications

Holes for threading pipe cylindrical thread. Diameters

Electromagnetic compatibility of technical equipment. Railway systems and equipment. Part 5. Electromagnetic emission and immunity of fixed power supply installations and apparatus. Requirements and test methods