1.12.2 Test procedure

A test generator suitable to reduce the amplitude of the AC mains voltage is used. It shall be adjusted before being connected to the gas analytical system. The mains voltage interruptions and reductions shall be repeated ten times with an interval of at least 10 s between successive disturbances. The following conditions shall be applied:

Reduction

factor Duration

100 %

40 %

During the test, measurements shall be performed using the CGM with the largest volume fraction for the components to be determined according to 1.2.