This article is within the scope of WikiProject Engineering, a collaborative effort to improve the coverage of
engineering on Wikipedia. If you would like to participate, please visit the project page, where you can join
the discussion and see a list of open tasks.EngineeringWikipedia:WikiProject EngineeringTemplate:WikiProject EngineeringEngineering articles
This article is within the scope of WikiProject Europe, an effort to build a comprehensive and detailed guide to
European topics of a cross-border nature on Wikipedia.EuropeWikipedia:WikiProject EuropeTemplate:WikiProject EuropeEurope articles
This article is within the scope of WikiProject Firefighting, a collaborative effort to improve the coverage of articles related to
firefighting on Wikipedia! If you would like to participate, please visit the
project page, where you can join the project and/or contribute to the
discussion.FirefightingWikipedia:WikiProject FirefightingTemplate:WikiProject FirefightingFirefighting articles
On Page Three of This, there is the following footnote:
"For this standard, ability to release is confusingly defined as the ability to release a hold-open device, which is really part of selfclosing. Not to be confused with the ability to release a locked door on an escape route, which applies to an emergency exit door,