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
54
405,000.00
2
Rwanda Standards
RS ISO 657-1: 1989 HOT-ROLLED STEEL SECTIONS —
PART 1: EQUAL-LEG ANGLES — DIMENSIONS