Vibration octave analysis problem

[I_K]

I'm measuring a vibration in range of 1-80Hz, according to Iso 2631.

The problem is that I need the velocity information for each 1/3-octave bands. It should be expressed in mm/s. If fractional octave analysis is used it always ends up to psd unit (mm/s)^2. Using some basic fft-analysis the unit is correct (mm/s) but resolution is higher than 1/3 octave. Any ideas?

ps. Is there any plans to develop a weighting filter needed by Iso 2631-2?

[Kurt_Veggeberg]

Human vibration filters were added to the Sound and Vibration Measurement Suite in version 6.0 at the end of 2007 compliant to ISO 2631 and ISO 5439.