weight to volume

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weight to volume

Postby john h » Wed Jan 30, 2008 6:43 am

is there a formula, equation, whatever to help convert weight to volume. we package products of various specific gravity into a variety of package sizes. if we have a product with a specific gravity of 1.4, for instance, and want to package 2.8 fluid ounces of this product how do we arrive at how many net weight ounces, grams, etc it takes to have 2.8 fl oz?
john h
 

Re: weight to volume

Postby Guest » Wed Jan 30, 2008 7:13 am

john h wrote:is there a formula, equation, whatever to help convert weight to volume. we package products of various specific gravity into a variety of package sizes. if we have a product with a specific gravity of 1.4, for instance, and want to package 2.8 fluid ounces of this product how do we arrive at how many net weight ounces, grams, etc it takes to have 2.8 fl oz?


Since you have to dual label, start with your metric labels. Water has a density (at 4 °C) of 1 kg/L = 1 g/mL. It is close to that (compared to commercial accuracy) up to 25 °C or so.

A specific gravity of 1.4 basically means it weighs 1.4 g/mL (or kg/L).

Of course if you insist on converting, 2.8 floz is 82.8 mL. It would weight 82.8 mL x 1.4 g/mL = 115.9 g. That's 0.256 lb or 4.09 oz
Guest
 


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