Weiyel Reference Materials
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Seawater quality fecal coliform positive quality control sample (Membrane membrane method)
BNCC363181
Bacillus pumilus spore suspension
BNCC361954
8099 Escherichia coli carrier (steel sheet)
BNCC361998
BNCC362180
Standard quality control samples of Escherichia coli in drinking water (multi-tube fermentation method)
BNCC360415
Seawater total bacterial colony count quality control sample
BNCC363184