#### 8.8.3.6 IfcMaterialProperties

| Propriétés de matériau
| Material - Merkmale

The IfcMaterialProperties assigns a set of material properties to associated material definitions. The set may be identified by a Name and a Description. The IfcProperty (instantiable subtypes) is used to express the individual material properties by name, description, value and unit.

> NOTE The set of material properties can be assigned to an individual IfcMaterial, a set or composite of materials (IfcMaterialConstituent, IfcMaterialConstituentSet), or set or individual material layer (IfcMaterialLayer, IfcMaterialLayerSet), or a set or individual material profile (IfcMaterialProfile, IfcMaterialProfileSet)

> HISTORY New entity in IFC2x.

> IFC4 CHANGE Entity made non-abstract. The subtypes IfcMechanicalMaterialProperties, IfcThermalMaterialProperties, IfcHygroscopicMaterialProperties, IfcGeneralMaterialProperties, IfcOpticalMaterialProperties, IfcWaterProperties, IfcFuelProperties, IfcProductsOfCombustionProperties, IfcExtendedMaterialProperties have been deleted, use IfcMaterialProperties instead.

XSD Specification:

<xs:element name="IfcMaterialProperties" type="ifc:IfcMaterialProperties" substitutionGroup="ifc:IfcExtendedProperties" nillable="true"/>
<xs:complexType name="IfcMaterialProperties">
<xs:complexContent>
<xs:extension base="ifc:IfcExtendedProperties"/>
</xs:complexContent>
</xs:complexType>

EXPRESS Specification:

ENTITY IfcMaterialProperties

| SUBTYPE OF (IfcExtendedProperties);

Material | : | IfcMaterialDefinition;

END_ENTITY;

Attribute Definitions:

Material | : | Reference to the material definition to which the set of properties is assigned. IFC4 CHANGE The datatype has been changed to supertype IfcMaterialDefinition.

Inheritance Graph:

ENTITY IfcMaterialProperties

| ENTITY IfcPropertyAbstraction

| INVERSE

| ENTITY IfcExtendedProperties

Name | : | OPTIONAL IfcStrippedOptional;
Description | : | OPTIONAL IfcStrippedOptional;
Properties | : | SET [1:?] OF IfcProperty;

| ENTITY IfcMaterialProperties

Material | : | IfcMaterialDefinition;

END_ENTITY;

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