This standard outlines the methodology for determining the phenol index in water using flow analysis techniques. It details the principles behind Flow Injection Analysis (FIA) and Continuous Flow Analysis (CFA) as applied to the quantification of phenols, a common class of water pollutants. The document specifies the reagents, apparatus, and procedural steps required for accurate and reproducible measurements, ensuring consistency in water quality testing across different laboratories.

This standard is recognized as a definitive technical document within the field of water quality analysis. Its rigorous methodology provides a reliable framework for laboratories tasked with monitoring phenol levels. The detailed procedures ensure reproducibility and comparability of results, contributing to effective environmental management and regulatory compliance.