UNE-EN ISO 7393-1:2000 WATER QUALITY. DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE. PART 1: TITRIMETRIC METHOD USING N, N-DIETHYL-1,4-PHENYLENEDIAMINE (ISO 7393-1:1985)
2000UNE-EN ISO 7393-1:2000 WATER QUALITY. DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE. PART 1: TITRIMETRIC METHOD USING N, N-DIETHYL-1,4-PHENYLENEDIAMINE (ISO 7393-1:1985)