For John Juhasz your query on doa,dop,dow explanation can be found in BSI Document http://www.compliance-club.com/sections.php?op=viewarticle&artid=8#d
If you have trouble with link ,it is on our web site go to Standards. Then the Development and Use of EMC Standards. Happy reading Alan E Hutley Editor EMC Compliance Journal www.compliance-club.com Secretariat for EMCIA www.emcia.org