DIN V 4.5.6 Mauersteine aus Beton 1800
record MauersteineBetonl800 = BuildingSystems.HAM.Data.MaterialProperties.BaseClasses.MaterialThermalGeneral(id = 9, name = "MauersteineBetonl800", lambda = 1.2, c = 1000.0, rho = 1800.0);