For the purposes of this chapter:
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); 1 and
(B) that is critically evaluated as to its reliability under section 290b of this title.
The term "Secretary" means the Secretary of Commerce.
(
2017-
"(a) The term 'standard reference data' means quantitative information, related to a measurable physical or chemical property of a substance or system of substances of known composition and structure, which is critically evaluated as to its reliability under section 290b of this title.
"(b) The term 'Secretary' means the Secretary of Commerce."