1. Scope 1.1 This practice describes procedures to be followed in preparation for, and application and installation of, operable partitions and, to some extent, in the design of the building in which they are installed. Operable partitions are those that are quickly movable. 1.2 Excluded from this practice are those partitions that are classified by the building products industry as demountable . Demountable partitions are those that are designed and installed with the intent of later being taken down and re-erected by a crew over a period of time, with the components being reusable. 1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.