IfcDuctSilencerTypeEnum

Definition from IAI: Enumeration defining the typical types of duct silencers. The IfcDuctSilencerTypeEnum contains the following:

- FLATOVAL: Flat-oval shaped duct silencer type.
- RECTANGULAR: Rectangular shaped duct silencer type.
- ROUND: Round duct silencer type.
- USERDEFINED: User-defined duct silencer type.
- NOTDEFINED: Undefined duct silencer type.

> HISTORY: New enumeration in IFC 2x2.

EXPRESS specification:

TYPE IfcDuctSilencerTypeEnum = ENUMERATION OF
( | FLATOVAL, RECTANGULAR, ROUND, USERDEFINED, NOTDEFINED);
END_TYPE;