RS ASTM F 2299: 2017 STANDARD TEST METHOD FOR DETERMINING THE INITIAL EFFICIENCY OF MATERIALS USED IN MEDICAL FACE MASKS TO PENETRATION BY PARTICULATES USING LATEX SPHERES1
10,500.00
58
609,000.00
3
Rwanda Standards
RS ISO 404: 2013 STEEL AND STEEL PRODUCTS — GENERAL
TECHNICAL DELIVERY REQUIREMENTS