1.1 This guide covers the concepts of purity, impurity, and contamination in biological drug products.

1.2 This guide suggests methods for determination of impurities and contaminants in such products.

1.3 This guide is arranged as follows:

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.