NFPA 257 standard on fire test for window and glass block assemblies. - National Fire Protection Association; American National Standards Institute (Quincy, Massachusetts National Fire Protection Association, 2012)
"This edition of NFPA 257, Standard on Fire Test for Window and Glass Block Assemblies, was prepared by the Technical Committee on Fire Tests. It was issued by the Standards Council on December 13, 2011, with an effective date of January 2, 2012, and supersedes all previous editions"--Page 1.
"This edition of NFPA 257 was approved as an American National Standard on January 2, 2012"--Page 1.
Includes bibliographical references and index.
Keywords: Windows -- Fires and fire prevention -- Testing -- Standards