Roger Brown is an internationally acknowledged expert on physical testing and quality assurance of polymers and has published more than 70 technical papers and several books on testing subjects. He was responsible for Rapra's testing laboratories and services for 25 years and is editor of the journal Polymer Testing. He is active in many standards committees and is leader of the British delegation to ISO Technical Committee 45. Roger and his wife Yoland have opened their garden at Brownhill House for the National Garden Scheme for 33 years. They also enjoy driving their 4 kit cars.