QASI provides consultancy in setting up and pursuit of accreditation of EQA systems to ISO/IEC 17043 which specifies general requirements for the competency of providers of proficiency testing and operations of proficiency testing schemes. These requirements are intended to be general for all types of proficiency testing schemes and can be used as a basis for specific technical requirements for particular fields of application. We employ several EQA methods or processes to fulfill the requirements of EQA participation in accordance with ISO 15189/17025.