Dvadeset minuta vrata testirana bez struje crijeva

Vrata i okviri također se mogu ocijeniti kao 20 minuta bez struje crijeva. 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 with 1/{3- sat požara s požarima, koja su testirana u skladu sa standardnim postupkom ispitivanja požara koji uključuje test struje crijeva.