For the purposes of this chapter:

((1)) ** Standard reference data** The term “standard reference data” means data that is—

((A)) either—

((i)) quantitative information related to a measurable physical, or chemical, or biological property of a substance or system of substances of known composition and structure;

((ii)) measurable characteristics of a physical artifact or artifacts;

((iii)) engineering properties or performance characteristics of a system; or

((iv)) 1 or more digital data objects that serve—

((I)) to calibrate or characterize the performance of a detection or measurement system; or

((II)) to interpolate or extrapolate, or both, data described in subparagraph (A) through (C);  and

((B)) that is critically evaluated as to its reliability under .

((2)) ** Secretary** The term “Secretary” means the Secretary of Commerce.