§ 25.12. Weight, liquid measure or count terminology.
(a) General. The declaration of the quantity of a particular commodity shall be expressed in terms of liquid measure if the commodity is liquid, in terms of weight if the commodity is solid, semisolid, viscous or a mixture of solid and liquid, or in terms of numerical count. However, if there exists a firmly established general consumer usage and trade custom with respect to the terms used in expressing a declaration of quantity of a particular commodity, the declaration of quantity may be expressed in its traditional terms, if the traditional declaration gives accurate and adequate information as to the quantity of the commodity.
(b) Weight and measure terms. A declaration of quantity shall be as follows, except that nothing in this subsection shall prohibit the labeling of nonconsumer packages in terms of units of the metric system:
(1) If in units of weight, the declaration shall be in terms of the avoirdupois pound or ounce.
(2) If in units of liquid measure, the declaration shall be in terms of the United States gallon of 231 cubic inches or liquid quart, liquid pint or fluid ounce subdivisions of the gallon and shall express the volume at 68°F (20°C), except in the case of petroleum products, for which the declaration shall express the volume at 60°F (15.6°C), and except also in the case of a commodity that is normally sold and consumed while frozen, for which the declaration shall express the volume at the frozen temperature, and except also in the case of a commodity that is normally sold in the refrigerated state, for which the declaration shall express the volume at 40°F (4°C).
(3) If in units of linear measure, the declaration shall be in terms of the yard, foot or inch.
(4) If in units of area measure, the declaration shall be in terms of the square yard, square foot or square inch.
(5) If in units of dry measure, the declaration shall be in terms of the United States bushel of 2,150.42 cubic inches or peck, dry quart and dry pint subdivisions of the bushel.
(6) If in units of cubic measure, the declaration shall be in terms of the cubic yard, cubic foot or cubic inch.
(c) Abbreviations. A generally accepted abbreviation of a unit name may be employed in the quantity statement on a package of the commodity; commonly accepted abbreviations are contained in § 23.13(c) (relating to weight, liquid measure or count terminology).
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