1.1 This terminology contains definitions of terms and descriptions of terms related to catalysts and catalysis.

Note 1—"The Manual of Symbols and Terminology for Physicochemical Quantities and Units-Appendix II. Definitions, Terminology and Symbols in Colloid and Surface Chemistry. Part II: Heterogeneous Catalysis," Pure and Applied Chemistry, Vol 46, No. 1, 73-90(1976). This document presents authoritative descriptions of many terms used in the field of catalysis.