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Questions and answers on how to convert things from one unit or system to another

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Postby Math_Impared » Thu May 05, 2005 7:04 pm

Is there a magic formula for converting lbs of something to water gallons? I do not have to be accurate to the Nth degree, just in the ballpark.

How many water gallons is 600 lbs of R-22 refrigerant?
How many water gallons is 20 lbs of propane (blowtorch tanks)?
Etc. etc.

I need to do this for reporting requirements. The form specifies flammable gas and non-flammable gas amounts in "water gallon capacities" so I need to know how much I have in "water gallon capacity" to find out if I'm required to report it or not.

Thanks for any help
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Joined: Fri Apr 29, 2005 7:55 pm

Postby Guest » Thu May 05, 2005 7:35 pm

The magic formula is called "density." It is a property of the material, in general is different for each material, and you have to look it up in a reference book. The Handbook of Chemistry and Physics is a good place to look but there are other references.

If you divide mass by density, you get volume. If you multiply volume by density, you get mass.

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