Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full -- Part 1: General principles and requirements— 40 стр.
Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full. General principles and requirements— 44 стр.
Heating boilers. Heating boilers with forced draught Burners. Nominal heat output not exceeding 10 MW and maximum operating temperature of 110°C— 132 стр.