GOST 4109-79

Protective devices operated by residual current. General requirements

Organic fertilizers. General requirements for methods of analysis

Aerophotographic films. Radiation resistance norms

Electric cables, wires and cords. Spark test method

Ships and marine technology. Marine radar reflectors. Part 2. Active type

Uniform provisions concerning the approval of compression ignition engines to be installed in agricultural and forestry tractors and in non-road mobile machinery in regard to the emission of pollutants by the engines