| http://www.w3.org/ns/prov#value | - When a proprietor both denatures spirits and manufactures articles in a single, unified process, the proprietor may, in place of the procedure specified in paragraph (a) of this section, gauge the spirits before and after denaturation in the following manner:(1) Gauge the spirits to be denatured by volume, weight, accurate mass flow meter, or other device or method approved by the appropriate TTB
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