Influence of materials on water intended for human consumption. Organic materials. Determination of colour and turbidity of water in piping systems. Test method— 24 стр.
Water quality. Determination of free chlorine and total chlorine, Colorimetric method using N,N-diethyl-1,4-phenylenediamine for routine control purposes— 16 стр.
Water quality; Determination of free chlorine and total chlorine; Part 2 : Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes— 12 стр.
