1.1 This specification covers glass in permanent railing systems, guards and balustrades installed in agricultural, assembly, commercial, educational, industrial, institutional, recreational, and residential buildings. 1.2 This specification is intended to be applied to permanent glass railing systems for buildings and to such railing systems, rails, guards and balustrades having major structural components made of glass, or the secondary components such as infill or balusters made of glass. 1.3 This specification considers that the overall outlook is based on the health and safety of all potential users of buildings. The criteria incorporated in this specification provide for normal and anticipated building uses, but not for abuses for which the building and its components are not designed. 1.4 This specification establishes basic minimum requirements and criteria that lead to satisfactory products under normal use conditions and does not give consideration to design criteria for specific field conditions, the establishment of which is the prerogative and responsibility of the designer, specification writer, and regulatory agencies. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the applicability of regulatory limitations prior to use.