Pset_MaterialOptical

BACnet MVD

#### 8.10.5.8 Pset_MaterialOptical

PSET_TYPEDRIVENOVERRIDE / IfcMaterial

Natural language names

| Material Optical

Properties

buildingSMART Data Dictionary

PSD-XML

Name | Type | Description
--- | --- | ---

VisibleTransmittance

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Visible Transmittance | Transmittance at normal incidence (visible). Defines the fraction of the visible spectrum of solar radiation that passes through per unit area, perpendicular to the surface.

SolarTransmittance

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Solar Transmittance | Transmittance at normal incidence (solar). Defines the fraction of solar radiation that passes through per unit area, perpendicular to the surface.

ThermalIrTransmittance

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Thermal Ir Transmittance | Thermal IR transmittance at normal incidence. Defines the fraction of thermal energy that passes through per unit area, perpendicular to the surface.

ThermalIrEmissivityBack

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Thermal Ir Emissivity Back | Thermal IR emissivity: back side. Defines the fraction of thermal energy emitted per unit area to "blackbody" at the same temperature, through the "back" side of the material.

ThermalIrEmissivityFront

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Thermal Ir Emissivity Front | Thermal IR emissivity: front side. Defines the fraction of thermal energy emitted per unit area to "blackbody" at the same temperature, through the "front" side of the material.

VisibleReflectanceBack

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Visible Reflectance Back | Reflectance at normal incidence (visible): back side. Defines the fraction of the solar ray in the visible spectrum that is reflected and not transmitted when the ray passes from one medium into another, at the "back" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.

VisibleReflectanceFront

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Visible Reflectance Front | Reflectance at normal incidence (visible): front side. Defines the fraction of the solar ray in the visible spectrum that is reflected and not transmitted when the ray passes from one medium into another, at the "front" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.

SolarReflectanceBack

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Solar Reflectance Back | Reflectance at normal incidence (solar): back side. Defines the fraction of the solar ray that is reflected and not transmitted when the ray passes from one medium into another, at the "back" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.

SolarReflectanceFront

P_SINGLEVALUE / IfcPositiveRatioMeasure

| Solar Reflectance Front | Reflectance at normal incidence (solar): front side. Defines the fraction of the solar ray that is reflected and not transmitted when the ray passes from one medium into another, at the "front" side of the other material, perpendicular to the surface. Dependent on material and surface characteristics.

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