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Water quality enzyme substrate method quality control sample BNCC360391 BNCC
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Quality control samples by enzyme substrate method for drinking water BNCC360392 BNCC
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ATCC 9372 spore suspension BNCC358969 BNCC
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Fecal coliform positive control samples (membrane method) BNCC359576 BNCC
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Water quality fecal coliform negative quality control sample (filter membrane method) BNCC360397 BNCC
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