BS ISO 10494:2018 specifies methods for measuring the noise emission of a turbine or turbine set under steady-state operating conditions. It specifies methods for measuring the sound pressure levels on a measurement surface enveloping a source, and for calculating the sound power level produced by the source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level from which the A-weighted sound power level of the source and octave or one-third-octave band sound power levels are calculated. These methods can be used to conduct performance tests even if the purpose of the test is simply to determine the sound pressure level around the machine.

This document is applicable to turbines and turbine sets:

• for power plant and industrial applications (e.g. stationary);
• for installation on board ships, or offshore installations, road and railway vehicles.

It does not apply to gas turbines in aircraft applications.

This document is applicable to only the part of the turbine set (turbine, driven equipment and attached components) located above the floor and inside a continuous enveloping measurement surface bounded by this floor.

It is applicable to steady-state operation and excludes transients such as start-up and shut-down, when the noise emission can be higher for short times. Under these conditions, this document does not apply.


Cross References:
ISO 3746:2010 Ed 3
ISO 3744:2010 Ed 3
IEC 60942
IEC 61260-1
ISO 6926
IEC 61672-1
ISO 9614-3:2009
ISO 12001:2009
IEC 60268-4
ISO 9614-2:1997
ISO 9614-1:2009
ISO/TS 7849-1:2009
ISO 3741:2010 Ed 4
ISO 3747:2010 Ed 3
ISO 3745:2012
ISO/TR 25417:2007 Ed 1
ISO 3740:2000 Ed 2
ISO 3382-2:2008 Ed 1
ISO/TS 7849-2:2009
ISO 3743-2:1994
ISO 11201:2010 Ed 2
ISO 3743-1:2010 Ed 2
ISO 80000-8:2007


All current amendments available at time of purchase are included with the purchase of this document.