RS ISO 11923: 1997 WATER QUALITY — DETERMINATION OF SUSPENDED SOLIDS BY FILTRATION THROUGH GLASS-FIBRE FILTERS
9,000.00
100
900,000.00
2
Rwanda Standards
RS ISO 15681-2: 2018 WATER QUALITY — DETERMINATION OF ORTHOPHOSPHATE AND TOTAL PHOSPHORUS CONTENTS BY FLOW ANALYSIS (FIA AND CFA) — PART 2: METHOD BY CONTINUOUS FLOW ANALYSIS (CFA)