Acknowledgements
Writing a book on environmental specifications was never going to be an easy task. There are literally hundreds of books written on this topic but none of these tell the whole story.
The research, therefore, was enormous and we, as authors, relied heavily on the contributions, support and assistance so freely given by our friends, professional associates and business acquaintances.
Unfortunately space does not permit us to name all of these people who have helped us over the years, but we cannot permit publication without particularly mentioning the assistance provided by Pamela Danvers and the library staff of BSI Chiswick, Infonorme London Information (ILI) (for their invaluable help with standards and their implementations), Bruce Sherring-Lucas (for copy editing and indexing the final draft) but most of all, Peta Miers for keeping us in order and ensuring that the manuscript was completed on time.