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)

spectrometric measure metric of the calibration solutions

NOTE Also with this method

With competence and obedience to ISO 17021‑3

Dealers and importers of lawn trimmers

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.