Initial Requirements of ISO 17025

The opening sections of 17025 are entitled Introduction, Scope, Normative References, and Terms/Definitions. The introduction is similar to the Guide 25 introduction in that it refers to ISO 9001 and 9002 and specifies that certification to those standards does not necessarily demonstrate technical competence. Of course, technical EMC competence is the key to producing technically valid testing results.
The section on scope is very similar to that of Guide 25. It specifies the general lab requirements and the organizations to which it is applicable, including first-, second-, and third-party laboratories. The normative references include ISO/IEC Guide 2, VIM, ISO 9001, and ISO 9002. The terms and definitions section includes best measurement capability as the only definable term, and it only applies to calibration labs.