As I know you chaps like to be up to speed with all the latest information, ASDMA has just published on line its second edition of the Best Practice Guide to Fire Doors. Available only as a download, it's twice the size of the original and I hope answers all the questions you've always wanted to ask, and a number you wouldn't even have thought of!
As there are those both within the industry and without it who will want to use this information, please remember that it's ASDMA's copyright and courtesy should dictate that you ask permission to use part or all of it before you do. (You know who you are - you know why I'm saying this!)
ASDMA's on a bit of a publication roll at the moment so watch the website
www.asdma.com for a revision to the Fire Safety Order for Responsible Persons and a Guide to Installation of Fire Doors.....