15 U.S.C. § 295 : US Code - Section 295: Standard of fineness of gold articles; deviation

Search 15 U.S.C. § 295 : US Code - Section 295: Standard of fineness of gold articles; deviation

In the case of articles of merchandise made in whole or in part
of gold or of any of its alloys so imported into or exported from
the United States, or so deposited in the United States mails for
transmission, or so delivered for transportation to any common
carrier, or so transported or caused to be transported as specified
in section 294 of this title, the actual fineness of such gold or
alloy shall not be less by more than three one-thousandth parts
than the fineness indicated by the mark stamped, branded, engraved,
or printed upon any part of such article, or upon any tag, card, or
label attached thereto, or upon any box, package, cover, or wrapper
in which such article is incased or inclosed: Provided, That in any
test for the ascertainment of the fineness of any article mentioned
in this section, according to the foregoing standards, the part of
the article taken for the test, analysis, or assay shall be such
part or portion as does not contain or have attached thereto any
solder or alloy of inferior fineness used for brazing or uniting
the parts of said article: Provided further, That, in addition to
the foregoing tests and standards, the actual fineness of the
entire quantity of gold or of its alloys contained in an article
mentioned in this section, including all solder and alloy of
inferior fineness used for brazing or uniting the parts of such
article (all such gold, alloys, and solder being assayed as one
piece), shall not be less by more than three one-thousandth parts,
in the case of a watchcase or flatware, or than seven one-
thousandth parts, in the case of any other such article, than the
fineness indicated by the mark stamped, branded, engraved, or
imprinted upon such article, or upon any tag, card, or label
attached thereto, or upon any box, package, cover, or wrapper in
which such article is incased or inclosed, it being intended that
the standards of fineness and the tests or methods for ascertaining
the same provided in this section for articles mentioned therein
shall be concurrent and not alternative.