NF P41-031-1*NF 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.
2002NF P41-031-1*NF 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.