Pset_MaterialWater A set of extended material properties for of water typically used within the context of building services and flow distribution systems. IfcMaterial IfcMaterial IsPotable If TRUE, then the water is considered potable. Is Potable Hardness Water hardness as positive, multivalent ion concentration in the water (usually concentrations of calcium and magnesium ions in terms of calcium carbonate). Hardness AlkalinityConcentration Maximum alkalinity concentration (maximum sum of concentrations of each of the negative ions substances measured as CaCO3). Alkalinity Concentration AcidityConcentration Maximum CaCO3 equivalent that would neutralize the acid. Acidity Concentration ImpuritiesContent Fraction of impurities such as dust to the total amount of water. This is measured in weight of impurities per weight of water and is therefore unitless. Impurities Content DissolvedSolidsContent Fraction of the dissolved solids to the total amount of water. This is measured in weight of dissolved solids per weight of water and is therefore unitless. Dissolved Solids Content PHLevel Maximum water PH in a range from 0-14. PHLevel