RS ISO 2271: 1989 SURFACE ACTIVE AGENTS — DETERGENTS — DETERMINATION OF ANIONIC-ACTIVE MATTER BY MANUAL OR MECHANICAL DIRECT TWO-PHASE TITRATION PROCEDURE
7,500.00
108
810,000.00
2
Rwanda Standards
RS 107: 2018 BUILDING SAND FROM NATURAL SOURCES — SPECIFICATION
19,500.00
71
1,384,500.00
3
Rwanda Standards
RS ISO 9277: 2022 DETERMINATION OF THE SPECIFIC SURFACE AREA OF SOLIDS BY GAS ADSORPTION — BET METHOD
