- Author
- Mitchell, N. D.
- Title
- Tests of Theatre-Proscenium Curtains.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Journal
- Journal of Research, Vol. 11, 491-513, October 1933
- Report
- Research Paper RP603,
- Keywords
- curtains
- Abstract
- Two types of steel curtains, four asbestos cloth curtains, and several kinds of asbestos cloth were subjected to fire tests. The single-ply wire-reinforced curtain of heavy asbestos cloth and the 2-ply curtain of plain asbestos cloth permitted the passage of smoke and flame during the test and glowed on the unexposed surface. Curtains made of two plies of wire-reinforced asbestos cloth separated by a steel frame afforded protection for about 15 minutes against a severe test fire. The steel curtains were tested for one half hour and gave indication of affording protection for somewhat longer periods. Suggested requirements for inclusion in building codes are available.