RS ISO 9308-1: 2014 WATER QUALITY — ENUMERATION OF ESCHERICHIA COLI AND COLIFORM BACTERIA —
PART 1:
MEMBRANE FILTRATION METHOD FOR WATERS WITH LOW BACTERIAL BACKGROUND FLORA
15,000.00
30
450,000.00
3
Rwanda Standards
RS ISO 16311-2: 2014 MAINTENANCE AND REPAIR OF CONCRETE
STRUCTURES —
PART 2: ASSESSMENT OF EXISTING CONCRETE
STRUCTURES