BS IS0 24509:2019 BSl Standards Publication Ergonomics Accessible design - A method for estimating minimum legible font size for people at any age bsi. BS ISO 24509:2019 BRITISHSTANDARD National foreword This British Standard is the UK implementation of IS0 24509:2019 The UK participation in its preparation was entrusted to Technical Committee PH/9, Applied ergonomics. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application @ The British Standards Institution 2019 Published by BSI Standards Limited 2019 ISBN978 058094452 9 ICS 13.180 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the Amendments/corrigenda issued since publication Date Text affected