Pumps. Rotodynamic pumps. Glandless circulators. General requirements and procedures for testing and calculation of energy efficiency index (EEI)— 24 стр.
Specification for safety of household and similar electrical appliances. Particular requirements for stationary circulation pumps for heating and service water installations— 16 стр.
Thermal solar systems and components - Custom built systems - Part 5: Performance test methods for control equipment; German version EN 12977-5:2018— 52 стр.
