RS ISO 10390:2021 SOIL, TREATED BIOWASTE AND SLUDGE —
DETERMINATION OF PH
15,000.00
42
630,000.00
2
Rwanda Standards
RS ISO 15923-1: 2013 WATER QUALITY — DETERMINATION OF SELECTED
PARAMETERS BY DISCRETE ANALYSIS SYSTEMS —
PART 1: AMMONIUM, NITRATE, NITRITE, CHLORIDE,
ORTHOPHOSPHATE, SULFATE AND SILICATE WITH
PHOTOMETRIC DETECTION