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
20
210,000.00
2
Rwanda Standards
RS ISO 8973: 1997 LIQUEFIED PETROLEUM GASES — CALCULATION
METHOD FOR DENSITY AND VAPOUR PRESSURE
