GOST 23939-79

Pneumatic tires for tractors and agricultural machinery. Basic parameters and dimensions

Automobiles. Parameters of trafficability. Terms and definitions

Automatic play machines. Safety requirements and test methods

Semiconductor microwave varactors and multiplier diodes. Methods of measuring time constant and limiting frequency

Resources saving. Requirements to documentation by production of products. Environmental police of organization

Explosive atmospheres. Rules of competence assessment of the personnel performing installation, maintenance, repair and overhaul of the electrical installations intended for use in explosive atmospheres