A112.19.2 covers vitreous and non-vitreous china plumbing fixtures, including all types of water closets, lavatories, urinals, bidets, bathtubs, shower receptors, kitchen and bar sinks, service sinks, drinking fountains and institutional application fixtures that discharge into gravity drainage systems in permanent building and structures, independent of occupancy. It specifies requirements for materials, construction, performance, testing, and markings.