Proefwater

Proefwater is a Dutch term that literally translates to "test water" or "sample water." It refers to water that is used for testing, experiments, demonstrations, or quality control rather than for drinking or cooking. The phrase is common in educational settings, laboratories, and water-management contexts.

In schools and laboratories, proefwater is the water drawn or prepared specifically for experiments and instrument calibration. It can come from various sources, such as tap water, distilled water, or specially treated water, and is used to illustrate chemical or physical properties or to ensure that equipment functions correctly before measuring real samples.

In the water sector, proefwater describes samples that are collected to analyze water quality or to validate treatment processes. Analyses may cover parameters such as pH, conductivity, turbidity, residual chlorine, hardness, dissolved oxygen, and microbial indicators. Proefwater can be a controlled or pretreated sample intended for comparison, method testing, or performance checks of sensors and reactors.

The term is descriptive rather than a formal classification; it denotes the purpose of the water rather than a specific type. When used in professional settings, proefwater analyses follow standard sampling and analysis procedures to ensure representativeness and reliability, in line with relevant guidelines and standards (for example ISO, EN, or national drinking-water regulations).

See also: water sampling, water quality testing, water analysis, reference sample.