Water allocated to human consumption must be free of substances that can entail a risk for the health of consumers
The contact of water with the walls of tanks, pipes, pumps and taps during storage, processing or channelling to the point of consumption can be a source of unwanted contamination.
The analysis of building elements and materials destined to be in contact with drinking water is carried out by means of specific migration testing, which allows establishing if in regular conditions of use, any chemical contamination of the drinking water can occur.
Migration testing requires preparing the test water and putting it in contact with the material under study in accordance with the UNE EN 12873 Standard, creating different conditions based on the material's intended use; contact with cold water or hot water.
After the set contact time between the test water and material under study, the specific migration testing is carried out using a blank sample as a benchmark to assess the obtained data.
The water resulting from the migration testing must comply with the conditions set forth in annex I of Royal Decree 140/2003 and its amendments. Verifying that the material does not release substances that can entail a health risk.
Principal parameters analysed
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