ISO 10075-3:2004 establishes principles and requirements for the measurement and assessment of mental workload and specifies the requirements for measurement instruments. ISO 10075-3:2004 provides information for choosing appropriate methods and provides information on aspects of assessing and measuring mental workload to improve communication among the parties involved.

ISO 10075-3:2004 is intended for use mainly by ergonomic experts, for example, psychologists, occupational health specialists, and/or physiologists, with appropriate training in the theoretical background and usage of such methods, as well as in the interpretation of the results. They will find the information needed when developing or evaluating methods of mental-workload assessment.