RS ISO 4221: 1980 AIR QUALITY — DETERMINATION OF MASS
CONCENTRATION SULPHUR DIOXIDE IN AMBIENT AIR
— THORIN SPECTROPHOTOMETRIC METHOD
30,000.00
104
3,120,000.00
2
Rwanda Standards
RS ISO 9514: 2019 PAINTS AND VARNISHES — DETERMINATION OF THE POT LIFE OF MULTICOMPONENT COATING SYSTEMS — PREPARATION AND CONDITION OF SAMPLES AND GUIDELINES FOR TESTING