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
7,500.00
45
337,500.00
2
Rwanda Standards
RS ISO 17892-3: 2015 GEOTECHNICAL INVESTIGATION AND TESTING — LABORATORY TESTING OF SOIL — PART 3: DETERMINATION OF PARTICLE DENSITY