UNE-EN 13052-1:2002 Influence of materials on water intended for human consumption - Organic materials - Determination of colour and turbidity of water in piping systems - Part 1: Test method.
2002UNE-EN 13052-1:2002 Influence of materials on water intended for human consumption - Organic materials - Determination of colour and turbidity of water in piping systems - Part 1: Test method.