Influence of organic materials on water intended for human consumption - Determination of odour and flavour assessment of water in piping systems

This document specifies the test method for determining and evaluating the effects of organic materials used in piping systems on the odor and flavor of water intended for human consumption. The primary focus is to ensure that water distribution networks do not impart unpleasant tastes or smells to the potable water supply due to leaching substances from the pipe materials. The procedure involves conditioning specific pipe samples and extracting the leachates, which are then analyzed through sensory evaluation by a trained panel. Parameters such as the intensity of odor, taste, and any specific deviations are recorded and compared against control samples. This approach allows manufacturers and utilities to assess the compatibility of new or existing piping components with drinking water quality requirements. The methodology provides a standardized framework for consistent testing across different facilities and materials, facilitating the comparison of results. It is applicable to pipes, fittings, and associated components that come into contact with water in residential, commercial, and industrial settings. By utilizing this approach, stakeholders can verify that the materials in the water system maintain the sensory quality of the water to an acceptable level throughout its journey from the treatment plant to the consumer's tap.