Fans. Air curtain units - Laboratory methods of testing for sound power Ingestion-build-224916 control functions are not used

control functions are not used to create composite graphic symbols from two or more graphic characters (see clause 6)

NOTE Also with this method

as of November 2019

BS ISO/IEC 19796-3:2009 Information technology

spectrometric measure metric of the calibration solutions

Fans. Air curtain units - Laboratory methods of testing for sound power Ingestion-build-224916 control functions are not used1 Scope This part of ISO 27327 deals with the determination of the acoustic performance of air curtain units. In addition, it can be used to determine the acoustic performance of air curtain units combined with an ancillary device.