RS ISO 4221: 1980 AIR QUALITY — DETERMINATION OF MASS
CONCENTRATION SULPHUR DIOXIDE IN AMBIENT AIR
— THORIN SPECTROPHOTOMETRIC METHOD
30,000.00
167
5,010,000.00
2
Rwanda Standards
RS ISO 16128-2: 2017/Amd 1:2022 COSMETICS — GUIDELINES ON TECHNICAL
DEFINITIONS AND CRITERIA FOR NATURAL AND
ORGANIC COSMETIC INGREDIENTS —
PART 2: CRITERIA FOR INGREDIENTS AND PRODUCTS