Radiation Protection Work: Comply with National Council of Radiation Protection (NCRP) Report No. 049 - Structural Shielding Design and Evaluation for Medical Use of X-Rays and Gamma Rays of Energies up to 10 MeV.
Comply with requirements of local regulatory agencies where local standards and criteria exceed requirements of NCRP Report Nos. #145, #147 and #151.
Single Source Responsibility: Obtain radiation protection materials and accessories produced or distributed as standard products from single manufacturer regularly engaged in production of X-Ray shielding materials, equipment, and accessories.
Mock-Up: Provide a mock-up of type and size as directed by Architect for testing purposes to verify the protection integrity of the work of this section and to establish application workmanship.
Locate mock-up where directed by Architect.
Rework mock-up area as required to produce acceptable work.
Do not proceed with remaining work until protection integrity and workmanship are approved by Architect.
Approved mock-up may remain as part of the Work.
DELIVERY, STORAGE, AND HANDLING
Comply with manufacturer's instruction for receiving, handling, storing, and protecting materials.
Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels intact.
Store materials in original packaging, protected from exposure to harmful environmental conditions, including static electricity, and at temperature and humidity conditions recommended by manufacturer.
Exercise care to prevent edge damaged materials.
Ambient Conditions: Maintain temperature, humidity, and ventilation condition within limits recommended by manufacturer for optimum results. Do not install products under ambient conditions outside manufacturer's absolute limits.
Lead-Laminated Gypsum Board:
Environmental Limitations: Comply with ASTM C 840 requirements or gypsum board manufacturer's written recommendations, whichever are more stringent.
Do not install paper-faced gypsum panels until installation areas are enclosed and conditioned.
Do not install panels that are wet, those that are moisture damaged, and those that are mold damaged.
Indications that panels are wet or moisture damaged include, but are not limited to, discoloration, sagging, or irregular shape.
Indications that panels are mold damaged include, but are not limited to, fuzzy or splotchy surface contamination and discoloration.
Coordinate the work of this Section with the respective trades responsible for installing interfacing work.
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