Uși de douăzeci de minute testate fără flux de furtun

Ușile și ramele pot fi, de asemenea, evaluate la 20 de minute fără un flux de furtun. These doorshave successfully passed a 20-minute fire test,with the omission of the hose stream test, andbear a label that specifically states "TwentyMinute-RatingTested Without Hose Stream."These doors may be provided with vision lightsonly limited in size by the door manufacturer'sfire labeling procedure authority.Assemblies identified as "Twenty-Minute-RatingTested Without Hose Stream" should notbe confused cu 1/3- Ora, uși evaluate de incendiu, care au fost testate în conformitate cu procedura standard de testare a incendiilor care includ testul fluxului de furtuni.