Newly revised, the information in PCI MNL-117-13 is intended to serve as standards for quality control for the manufacture of architectural precast concrete products and as a complete guide for the development of an internal manufacturing quality control program. Architectural precast concrete panels, through the application of finish, shape, color or texture, contribute to the architectural form and finished effect of a structure. The Standard portion serves as a specification reference document, while the Commentary provides additional clarifying information and discussions of the Standards.