- ISO 9186—Graphical symbols—Test methods for judged comprehensibility and for comprehension
- EG 201 379 (1998)—Human Factors; Framework for the development, evaluation and selection of graphical symbols
- ISO 9186 (1989)—Procedures for the development and testing of public information symbols
- ISO 17398—Graphical Symbols – Test Methods
- F.910—Procedures for designing, evaluating, and selecting symbols, pictograms and icons