RS ISO 6060: 1989 WATER QUALITY — DETERMINATION OF THE CHEMICAL OXYGEN DEMAND
6,000.00
54
324,000.00
2
Rwanda Standards
RS ISO 7251:2005 MICROBIOLOGY OF FOOD AND ANIMAL FEEDING STUFFS — HORIZONTAL METHOD FOR THE DETECTION AND ENUMERATION OF PRESUMPTIVE ESCHERICHIA COLI — MOST PROBABLE NUMBER TECHNIQUE