This report details the analytical methods for determining urea concentrations in water bodies, a critical parameter for assessing water quality and environmental impact. Authored by the Standing Committee of Analysts under the Department of the Environment, this publication draws upon established scientific protocols and expert consensus to provide standardized procedures. It addresses the need for accurate and reproducible measurements of urea, a compound significant in both natural and anthropogenic pollution contexts, by outlining specific techniques and their applications.

This technical report is regarded as a foundational document for environmental chemists and water quality analysts. It provides a standardized approach to urea measurement, essential for regulatory compliance and scientific research in aquatic environments. The publication's authority stems from its origin within a governmental standing committee, signifying a consensus-driven, expert-vetted methodology. Its focus on analytical precision makes it a key reference for laboratories involved in environmental monitoring and water resource management.