Complex sentence: There are many commonalities with the ISO 9000 standard, but ISO/IEC 17025 is more specific in requirements for competence, and applies directly to those organizations that produce testing and calibration results.
Split into simpler sentences: There are many commonalities with the ISO 9000 standard, but ISO/IEC 17025 is more specific in requirements for competence. And it applies directly to those organizations that produce testing and calibration results.