RS ISO 6777: 1984 WATER QUALITY — DETERMINATION OF NITRITE — MOLECULAR ABSORPTION SPECTROMETRIC METHOD
7,500.00
35
262,500.00
3
Rwanda Standards
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