For incompressible fluids e.g. oil (and even for methane) kilograms or metric 
tons of mass are easier to visualize and would be better than any unit of 
volume, and kg/s is best for rate of flow, liquid or gas.

---- Original message ----
>Date: Thu, 10 Jun 2010 09:23:44 -0700 (PDT)
>From: "John M. Steele" <[email protected]>  
>Subject: [USMA:47649] Re: Oil Spill Technical Team Using SI  
>To: "U.S. Metric Association" <[email protected]>
>
>   I can envision 1 L or a few, I can't envision 3
>   million.  Would not 3000 m³ be a lot better than
>   throwing in "big counting words" in lieu of a
>   suitable unit or prefix?
>    
>   I will probably take flack for this one, but SAE
>   metric practice is to use the cubic dekameter for
>   large amounts of water, such as irrigation, where
>   traditional measure would be the acre-foot.  In that
>   notation, the leak would be 3 dam³/day.
>...
>

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