RS ISO 1871: 2009 FOOD AND FEED PRODUCTS — GENERAL GUIDELINES FOR THE DETERMINATION OF NITROGEN BY THE KJELDAHL METHOD
10,500.00
17
178,500.00
2
Rwanda Standards
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
