1 Scope
This part of CISPR 16‑4 gives guidance on the treatment of uncertainties to those who are involved in the
development or modification of CISPR electromagnetic compatibility (EMC) standards.
In addition, this part provides useful background information for those who apply
the standards and the uncertainty aspects in practice.
The objectives of this part are to:
a) identify the parameters or sources governing the uncertainty associated with the statement
that a given product complies with the requirement specified in a CISPR recommendation.
This uncertainty will be called “ standards compliance uncertainty ” ( SCU , see 3.1.16);
b) give guidance on the estimation of the magnitude of the standards compliance uncertainty ;
c) give guidance for the implementation of the standards compliance uncertainty into the compliance criterion of a CISPR standardised compliance test.
As such, this part can be considered as a handbook that can be used by standards writers
to incorporate and harmonise uncertainty considerations in existing and future CISPR
standards. This part also gives guidance to regulatory authorities, accreditation
bodies and test engineers to judge the performance quality of an EMC test-laboratory
carrying o...