RS EAS 148-2: 2017 CEMENTS — TEST METHODS — PART 2: CHEMICAL ANALYSIS
97,500.00
2
195,000.00
2
Rwanda Standards
RS ASTM F 2101: 2019 STANDARD TEST METHOD FOR EVALUATING THE BACTERIAL FILTRATION EFFICIENCY (BFE) OF MEDICAL FACE MASK MATERIALS, USING A BIOLOGICAL AEROSOL OF STAPHYLOCOCCUS AUREUS