Ventilation for buildings. Air terminal devices. Aerodynamic testing and rating for mixed flow application Ingestion-build-143074 The abrasiveness is calculated from

The abrasiveness is calculated from the mass of steel lost during the test

BS ISO 5151 is not applicable to the rating and testing of the following:

It looks at all of the requirements that testing and calibration laboratories and testing organizations have to meet to prove that they operate a quality system

Although intended to be used in conjunction with BS ISO/IEC 27001 and BS ISO/IEC 27002

Notified bodies who test systems to certify fitness for purpose against the standard

Ventilation for buildings. Air terminal devices. Aerodynamic testing and rating for mixed flow application Ingestion-build-143074 The abrasiveness is calculated from