W212 Drinking Water – Final Results – Survey Shipped: Jul 12, 2021
Challenge Individual Challenges and Water Methodology Charts (pdf)
W212-1: Enterobacter spp. MPN MF ES PA - All
W212-2: E. coli MPN MF ES
W212-3: E. coli MPN MF ES
W212-4: Enterobacter spp. MPN MF ES
Method and Analysis Time (hs) Charts MPN Time MF Time ES Time PA Time
MPN: most probable number; MF: membrane filtration; ES: enzyme substrate; PA: presence/absence
ISO17043