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
79
592,500.00
2
Rwanda Standards
RS 530: 2023 NATURAL STONE TEST METHODS —
DETERMINATION OF GEOMETRIC CHARACTERISTICS
OF UNITS
