Flue Gases : Combustion products plus all diluents and contaminants. These include, where applicable excess air, dilution air, process air and waste products from the process
Ministry of Business, Innovation and Employment, Glossary of terms and acronyms, Wellington, New Zealand 2010. http://wwwsosh.govt.nz/resources/glossary-u.shtml, (Occupn Hlth and Sfty - Brit) {530}