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National Bureau of Standards
view article (1.0)Fire-Endurance Test of a Wood-Joisted Floor, The Ceiling of Which Consisted of Two Layers of Gypsum Wallboard With Metal Fabric Between.National Bureau of Standards, Washington, DC['Test 250', 'TR10218-17', 'FP2926']Test 250; TR10218-17; FP2926
May 19, 1950
13 p.