| North America | Factory-produced barite-filled gypsum panels or gypsum-board systems installed over metal framing | 12.7 mm 15.9 mm 19.1 mm 25.4 mm | Panel thickness, dry density, areal mass, compressive strength, joint detailing, and continuity at penetrations | ASTM C1396/C1396M for gypsum board; ASTM C840 for gypsum-board application and finishing; ASTM C473 for physical testing of gypsum panels | NCRP Report No. 147 for diagnostic X-ray imaging facilities; project-specific calculations by a qualified medical physicist | Independent test reports, batch density records, dimensional tolerances, installation instructions, and a shielding layout showing joints and penetrations |
| Western Europe | Barite-based gypsum composite boards and multi-layer partition systems | 12.5 mm 15 mm 18 mm 25 mm | Declared thickness, mass per unit area, reaction to fire, mechanical resistance, moisture limitations, and system compatibility | EN 520 for gypsum plasterboards; EN 13501-1 for reaction-to-fire classification; EN 13964 may apply to suspended ceiling components where relevant | National radiation-protection requirements, ICRP Publication 103 principles, and local authority or medical-physics design rules | Declaration of performance where applicable, CE-related documentation where applicable, fire classification, product data sheet, and radiation attenuation evidence for the specified X-ray spectrum |
| Central and Eastern Europe | Dense gypsum panels containing barium sulfate aggregate for wall, ceiling, and enclosure applications | 12.5 mm 15 mm 20 mm 25 mm | Uniformity of barite distribution, density consistency, edge integrity, screw-holding performance, and joint overlap | EN 520 or applicable national adoption; EN 13501-1 for fire classification; manufacturer installation method must be validated for the complete system | Local implementation of European or national diagnostic-radiology shielding rules; design calculations should identify workload, distance, occupancy, and use factors | Factory quality-control results, representative density measurements, panel drawings, corner and joint details, and traceable batch identification |
| East Asia | Barite-filled gypsum board, prefabricated shielding panels, and hybrid gypsum-board assemblies | 9.5 mm 12.5 mm 15 mm 18 mm | Mass per square metre, panel flatness, dimensional accuracy, fastener spacing, and shielding continuity at service openings | Applicable national gypsum-board standards; ASTM C1396/C1396M or EN 520 may be used when specified by the project | IEC 61331 series for protective devices and materials used against diagnostic medical X-radiation, where applicable; national medical-physics guidance remains controlling | Technical data sheet, composition statement, test method and beam-quality details, installation drawings, and evidence that the complete wall assembly—not only the panel—was evaluated |
| South Asia | Barite-plaster or barite-gypsum board systems used for diagnostic imaging rooms and controlled areas | 12.5 mm 15 mm 20 mm 25 mm | Barite content, dry density, moisture resistance, substrate preparation, surface hardness, and crack control | Applicable national building and gypsum-board standards; ASTM or EN methods may be referenced when accepted in the project specification | IAEA Safety Reports and national radiation-protection regulations for diagnostic radiology; final thickness should be calculated for the actual equipment and workload | Material composition, density and thickness certificates, sample approval, mixing or installation procedure, curing requirements, and post-installation inspection records |
| Middle East and Africa | Imported dense gypsum panels, barite-based boards, and site-installed barite shielding assemblies | 12.5 mm 15 mm 18 mm 25 mm | Supply-chain stability, temperature and humidity exposure, panel mass, impact resistance, and treatment of doors, glazing, ducts, and conduits | Project-specified ASTM or EN gypsum-board standards; fire-performance requirements should be assessed for the complete wall construction | Local authority requirements, NCRP Report No. 147 where adopted by the project, and qualified medical-physicist verification | Country-of-origin information, certificate of conformity, storage and handling instructions, system details, delivery inspection, and as-built shielding records |
| Latin America | Barite-filled gypsum panels and layered gypsum-board systems for X-ray, CT, dental, and fluoroscopy rooms | 12.5 mm 15 mm 19 mm 25 mm | Equivalent lead thickness only when tested for the stated beam quality, panel density, joint construction, and installation tolerances | Applicable national gypsum-board standards; ASTM C1396/C1396M, ASTM C840, or EN 520 may be included in the specification by reference | National health and radiation-safety regulations, NCRP-based methodologies where accepted, and equipment-specific shielding calculations | Attenuation report with kVp and filtration, density data, thickness tolerance, installation details, and acceptance inspection by the responsible radiation-safety professional |