Water for Human Consumption Directive - Quality Criteria

EU. Quality Criteria for Water for Human Consumption, Directive 98/83/EC, as amended by Directive 2015/1787/EU, 27 October 2015

This list contains the Annex I parameters from the Drinking Water Directive 98/83/EC, which concerns the quality of water intended for human consumption. Its objective is to protect human health from adverse effects of any contamination of water intended for human consumption by ensuring that it is wholesome and clean.

Hydrogen ion concentration

EC / List no: - CAS no: 12408-02-5
Application Name
Drinking water
Expressed As
as pH
Maximum Threshold
9.5 ph units
Minimum Threshold
6.5 ph units
C1 Part C - Indicator parameters
Expressed in pH units
For still water put into bottles or containers, the minimum value may be reduced to 4.5 pH units; For water put into bottles or containers which is naturally rich in or artificially enriched with carbon dioxide, the minimum value may be lower
The water should not be aggressive