RS ASTM D4839: 2024 STANDARD TEST METHOD FOR TOTAL CARBON AND
ORGANIC CARBON IN WATER BY ULTRAVIOLET, OR
PERSULFATE OXIDATION, OR BOTH, AND INFRARED
DETECTION
9,000.00
72
648,000.00
3
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