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
2
57,000.00
2
Rwanda Standards
RS ISO 7027-1: 2016 WATER QUALITY — DETERMINATION OF TURBIDITY — PART 1: QUANTITATIVE METHODS