To be compliant to the standards DEF STAN 59 and DO 160 a 10 μF capacitor like the CAP 10 has to be connected to the mains connectors of the LISN.
In order to be compliant to the standards ECE R10.06, CISPR 12 and PSA (which require a capacitance of in total 1 uF parallel to a resistance of 1 MΩ at the input side of the LISN) a 0.9 μF capacitor like the CAP 0.9-400 has to be connected to the mains terminals of the NNHV 8123-400 or NNHV 8123-800 LISN.
To be compliant to the standards DEF STAN 59 and DO 160 a 10 μF capacitor like the CAP 10 has to be connected to the mains connectors of the LISN.