Weiyel Reference Materials
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Quality control samples by enzyme substrate method for drinking water
BNCC360392
Fecal coliform positive control quality control sample (Multi-tube fermentation method)
BNCC359094
Quality control sample of coliform bacteria in sludge feces of medical institutions
BNCC362172
Water quality enzyme substrate method positive quality control sample
BNCC360394
Escherichia coli bacteriophage PhiX174 standard quality control product
BNCC362981
Seawater total bacterial colony count quality control sample
BNCC363183