| RS ISO 6058: 1984 | Water quality — Determination of calcium content-EDTA titrimetric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF4,500 | View Details | |
| RS ISO 5813: 1983 | Water quality — Determination of dissolved oxygen — Iodometric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF7,500 | View Details | |
| RS ISO 6333: 1986 | Water quality — Determination of manganese-formaldoxime spectrometric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF6,000 | View Details | |
| RS ISO 6777: 1984 | Water quality — Determination of nitrite — Molecular absorption spectrometric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF7,500 | View Details | |
| 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 | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF28,500 | View Details | |
| RS ISO 7890-3: 1988 | Water quality — Determination of nitrate — Part 3: Spectrometric method using sulfosalicylic acid | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF6,000 | View Details | |
| RS ISO 7980: 1986 | Water quality - Determination of Calcium and magnesium - Atomic absorption spectrometric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF4,500 | View Details | |
| RS ISO 8288: 1986 | Water quality — Determination of cobalt, nickel, copper, zinc, cadmium and lead — Flame atomic absorption spectrometric methods | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF16,500 | View Details | |
| RS ISO 9174: 1998 | Water quality — Determination of chromium-Atomic absorption spectrometric method | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF15,000 | View Details | |
| RS ISO 9963-1: 1994 | Water quality — Determination of alkalinity — Part 1: Determination of total and composite alkalinity | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF9,000 | View Details | |
| RS ISO 12846: 2012 | Water quality — Determination of mercury — Method using atomic absorption spectrometry (AAS) with and without enrichment | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF22,500 | View Details | |
| RS ISO 22743: 2006 | Water quality — Determination of sulfates — Method by continuous flow analysis (CFA) | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF15,000 | View Details | |
| 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) | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF27,000 | View Details | |
| RS ISO 10566: 1994 | Water quality — Determination of aluminium — Spectrometric method using pyrocatechol violet | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF7,500 | View Details | |
| RS ISO 10304-1: 2007 | Water quality — Determination of dissolved anions by liquid chromatography of ions — Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF22,500 | View Details | |
| RS ISO 9964-1: 1993 | Water quality — Determination of sodium and potassium — Part 1: Determination of sodium by atomic absorption spectrometry | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF6,000 | View Details | |
| RS ISO 9297: 1989 | Water quality — Determination of chloride — Silver nitrate titration with chromate indicator (Mohr’s method) | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF6,000 | View Details | |
| RS ISO 8245: 1999 | Water quality — Guidelines for the determination of total organic carbon (TOC) and dissolved organic carbon (DOC) | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF16,500 | View Details | |
| RS ISO 7888: 1985 | Water quality — Determination of electrical conductivity | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF9,000 | View Details | |
| RS ISO 7027-1: 2016 | Water quality — Determination of turbidity — Part 1: Quantitative methods | Environment. Health protection. Safety | ADOPTED ISO STANDARDS | RWF13,500 | View Details | |
