Internal & external audits: first-, second-, and third-party audits. 1  A first-party audit is performed within an organization to measure its strengths and weaknesses against its own procedures or methods and/or against external standards adopted by (voluntary) or imposed on (mandatory) the organization.
Precursor (chemistry) In chemistry, a precursor is a compound that participates in a chemical reaction that produces another compound. In biochemistry, the term precursor often refers more specifically to a chemical compound preceding another in a metabolic pathway, such as a protein precursor. 1 Illicit drug precursors.
Sec. 14.5. (a) As used in this section, âchemical reagents or precursorsâ refers to one (1) or more of the following: (1) Ephedrine. (2) Pseudoephedrine. (3) Phenylpropanolamine. (4) The salts, isomers, and salts of isomers of a substance identified in subdivisions (1) through (3).