Uniform provisions concerning the approval of compression ignition (C.1.) engines to be installed in agricultural and forestry tractors with regard to the emissions of pollutants by the engine
State system for ensuring the uniformity of measurements. State primary standards and state verification schedule for means of measuring specific conductivity of solutions of electrolytes within the range of 1x10 in minus 4 degree to 1x10 in 2 degree Sm/m