RS ISO 7393-2: 2017 WATER QUALITY — DETERMINATION OF FREE CHLORINE AND TOTAL CHLORINE —
PART 2:
COLORIMETRIC METHOD USING N,NDIALKYL-1,4-PHENYLENEDIAMINE, FOR ROUTINE CONTROL PURPOSES
28,500.00
21
598,500.00
3
Rwanda Standards
RS ISO 7980: 1986 WATER QUALITY - DETERMINATION OF CALCIUM AND MAGNESIUM - ATOMIC ABSORPTION SPECTROMETRIC METHOD