Which ISO standards primarily focus on system quality management?

The ISO 9000 Series is specifically designed for quality management systems, emphasizing the importance of meeting customer requirements and enhancing satisfaction through effective system operations. This series provides a framework for consistent product quality and service delivery, which are essential aspects of a successful management system. Organizations implementing ISO 9000 can systematically improve their processes, leading to continual enhancement in their operations and an overall increase in quality assurance.

In this context, while the other standard series mentioned address important aspects, they do not primarily focus on quality management as a system. For instance, the ISO 14001 Series deals with environmental management, the ISO 45001 Series focuses on occupational health and safety management, and the ISO 26000 Series provides guidance on social responsibility. Therefore, the ISO 9000 Series stands out as the correct choice concerning system quality management.