Sound Level Meters

["R. Mercuri" <notable@xxxxxxxxxxxxxx>]

I need to perform some sound level readings at an industrial facility 
and am looking for a good logging octave-band recorder. I'd appreciate 
recommendations.

The equipment must be capable of handling the following bands 20-75, 
75-150, 150-300, 300-600, 600-1200, 1200-2400, 2400-4800, and 4800 and 
above. The equipment must ALSO be compliant with the ANSI standards for 
Sound Level Meter Sl4-1971 and for Octave Band Filter Sets SL11-1966, 
R1971. I realize these standards are out of date, but those are the ones 
I have to be sure the equipment complies with, so if anyone knows how 
those earlier standards relate to ANSI Type 1, 2 etc. it would be 
greatly appreciated.

Also, recommendations for companies in the USA who rent such equipment 
would be greatly appreciated (as in, if you had a particularly GOOD or 
BAD experience with a certain company, this would be helpful to know).

A final question is with regard to calibration of the equipment -- are 
they self-calibrating, or is there a calibration test-set that one can 
purchase to ensure the equipment is in spec.

Thanks in advance for any information that folks can provide.

Rebecca Mercuri, Ph.D.
notable@xxxxxxxxxxxxxx