... , Canada , AfricaCE and available certs1, 186, 4, 3, 1, 262, 4, 84 Bitmap CE En13162Raw materialsperlite, mineral fiber, ... reflectMinimun LR 0.8''Temperature coefficient40°Crelative humidityLow density RH80~95Humidity content <0.6 AntimicrobiaInherentRecycled contentrecyclingProduct ... signal-to-noise ratio and reducing reverberation time. 4. Mineral Fiber Ceiling Production. 16 years of manufacturing ...