"SECTION 132. Mode of Computing Contents of Cask or Package. - Every fractional part of a proof liter equal to or greater than a half liter in a cask or package containing more than one liter shall be taxed as a liter, and any smaller fractional part shall be exempt; but any package of spirits, the total contents of which are less than a proof liter, shall be taxed as one liter.

"CHAPTER II - EXEMPTION OR CONDITIONAL TAX-FREE REMOVAL OF CERTAIN ARTICLES

"SECTION 133. Removal of Wines and Distilled Spirits for Treatment of Tobacco Leaf . - Upon issuance of a permit from the Commissioner and subject to the rules and regulations prescribed by the Secretary of Finance, manufacturers of cigars and cigarettes may withdraw from bond, free of excise tax, local and imported wines and distilled spirits in specific quantities and grades for use in the treatment of tobacco leaf to be used in the manufacture of cigars and cigarettes, but such wines and distilled spirits must first be suitably denatured.

"SECTION 134. Domestic Denatured Alcohol. - Domestic alcohol of not less than one hundred eighty degrees (180º) proof (ninety percent (90%) absolute alcohol) shall, when suitably denatured and rendered unfit for oral intake, be exempt from the excise tax prescribed in Section 141: Provided, however, That such denatured alcohol shall be subject to tax under Section 106(A) of this Code: Provided, further, That if such alcohol is to be used for motive power, it shall be taxed under Section 148(d) of this Code: Provided, finally, That any alcohol, previously rendered unfit for oral intake after denaturing but subsequently rendered fit for oral intake after undergoing fermentation, dilution, purification, mixture or any other similar process shall be taxed under Section 141 of this Code and such tax shall be paid by the person in possession of such reprocessed spirits.