The appropriate ISO standard for accrediting bodies is?

The correct choice for the appropriate ISO standard for accrediting bodies is ISO/IEC 17011. This standard specifically establishes the requirements for the competence of organizations performing accreditation of conformity assessment bodies. It provides a framework to ensure that accrediting organizations operate effectively, maintain consistent procedures, and provide confidence in the accredited bodies they assess.

ISO/IEC 17011 outlines key principles essential for the accreditation process, including impartiality, confidentiality, and the need for a documented quality management system. By adhering to this standard, accrediting bodies can demonstrate their competence and credibility, which is critical for building trust in the assessments they perform.

The other options represent different aspects of conformity assessment. ISO/IEC 17024 pertains to bodies certifying individuals, ISO/IEC 17025 addresses the requirements for testing and calibration laboratories, and ISO/IEC 17034 involves the requirements for reference material producers. Each of these standards serves its specific purpose, but when it comes to the accreditation of bodies themselves, ISO/IEC 17011 is the relevant standard.