Pharmacopoeias are collections of recognized and binding quality regulations that specify, among other things, test requirements and methods for the analysis of drugs. Both the European Pharmacopoeia (Ph. Eur.) and the United States Pharmacopeia (USP) contain specific chapters that deal with the use of laboratory balances. The chapters emphasize the criticality of weighing samples accurately in pharmaceutical analytical processes. The aim of this white paper is to present the testing requirements for laboratory balances as described in the relevant chapters of the pharmacopoeias and the associated certificates offered by Sartorius Service.