Description
This NMKL method describes a sensory quality control test for drinking water. In a sensory quality control test, the samples are evaluated against odourless and taste free reference water, and the assessors give points for the properties odour and taste. When an assessor detects a deviation from the reference water in a sample, he shall indicate this. For drinking water, it is recommended to use a scale ranging from 0 – 4 points, where 0 points mean that the sample does not deviate from the reference water. A sample which is evaluated at 2 points or higher, must always be annotated. The assessors shall use terms from a nomenclature list which describes known deviations for appearance, odour and taste in drinking water.