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5253 Hygiene and medical doors and windows (3)
Proprietary and non-proprietary hygiene/medical door, window and frame assemblies including fixed lights, hatches, shutters, panels etc. to provide a specified appropriate performance, with manual or automatic operation when not part of a partition system. Includes special hygiene surfaces, operating mechanisms, and details. May include further specific features, such as; air tightness, X-ray/radiation rating, impact resistance, secure access etc.
5255 Interior hatches and access panels (5)
Secondary access through walls, ceilings and floors, usually smaller than doors, opening or simply removable. They are permanent but usually are not primary accessways or functions. May include steps or ladders for ceiling or floor access. Hatches and covers that are separate elements from the building fabric and when not associated with and/or included in other work sections. Does not include roof hatches.
5258 Miscellaneous special function interior doors and windows (15)
Proprietary and non-proprietary interior non-standard or standard door, window and frame assemblies including fixed lights, hatches, shutters, panels etc. to provide a specified performance, with manual or automatic operation when not part of a partition system. Includes non-standard or standard components and accessories. May include further specific non-standard features.
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