ISO 17025-2017. 4.1.1 “Laboratory activities shall be undertaken impartially and structured and managed so as to safeguard impartiality.”
This is an easy-to-address requirement. You can add this statement to your Quality Assurance Manual (QAM) or to an Impartiality SOP. The document should address the commitment of the laboratory management and the laboratory employees to impartiality. New employees need to have training on ethics and impartiality as a part of their employment package and sign that they will act impartially.
I can help you to navigate through ISO 17025 requirements and prepare your laboratory for the application process. I offer online and in-person consulting. If you think that you can use my expertise, please contact me at your convenience.