Constitutes a code for acceptance testing of pumps, defining the quantities and terms that are used, establishing the test methods and the ways of measuring the quantities involved according to class B in order to ascertain the pumps' performances and to compare them with the guarantee of the manufacturer. Applies to any sizes of pumps tested with clean cold water and other liquids with clean cold water behaviour. Does not deal with the mechanical properties of pump components nor with the structural details of the pump.