What is the term for the total number of fatal or nonfatal lost-time accidents per million man-hours worked?

The term for the total number of fatal or nonfatal lost-time accidents per million man-hours worked is known as the accident frequency rate. This metric is crucial in understanding the safety performance of a workplace, particularly in industries such as mining, where hazards are prevalent. It provides a standardized way to measure safety incidents relative to the amount of work performed, allowing organizations to assess their safety culture and identify trends over time.

Using this method, companies can compare their safety statistics with industry standards or between different sectors, thus gaining insights into their operational safety performance. The accident frequency rate helps in formulating safety strategies and implementing preventive measures, ultimately aiming to reduce the occurrence of accidents in the workplace.

Other terms such as accident rate, incident frequency rate, and safety index, while related to measuring safety and incidents, do not specifically define the calculation as described in the question, which focuses on the number of accidents per million hours of work. Hence, the correct identification of the term as "accident frequency rate" underscores its importance in occupational health and safety practices.