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
25
712,500.00
2
Rwanda Standards
RS ISO 18091: 2019 QUALITY MANAGEMENT SYSTEMS — GUIDELINES FOR THE APPLICATION OF ISO 9001 IN LOCAL GOVERNMENT
