scope:

This method covers the determination of the structural performance of exterior windows, curtain walls, and doors under uniform static air pressure differences, using a test chamber.

This method is applicable to areas of curtain walls or to windows and doors alone.

This method mayor may not be used to evaluate the adequacy of the glass for a particular application. When the structural performance of glass is to be evaluated, the procedure described in Annex A 1 is to be used.

The proper use of this method requires a knowledge of the principles of pressure and deflection measurement.

This method describes the apparatus and the procedure to be used for applying either specific test loads or unknown ultimate values of uniformly distributed test loads to a specimen.

Procedure A (10.2) shall be used when a load-deflection curve is not required.

Procedure B (10.3) shall be used when a load-deflection curve is required.

NOTE 1-The values stated in inch-pound units are to be regarded as the standard. The metric equivalents of inch-pound units may be approximate.