Weiyel Reference Materials
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| Subculture | Nutritional gravy medium (English name: NA/NB): beef paste 3.0g, peptone 10.0g,NaCl 5.0g, agar 20.0g (not included in liquid medium), distilled water 1.0L,pH 7.0. Sterilization at 121 ℃ for 15min. [Note] Adding 5 mgMnSO4 · H2O to culture Bacillus is beneficial to produce spores. |
| Growth conditions | 37 ℃, aerobic, 18-24h |
| Storage conditions | -80 ℃, cold storage away from light; Dry ice transportation |
| Safety level | 1 |
| Application | Sensitive test; Antibacterial test; Food testing; Cosmetic testing; Culture control; Quality control strain; API verification bacteria, GB 4789.38-2012 Escherichia coli count positive control strain. |
| Sharing mode | Public welfare sharing |
Water quality total coliform negative quality control sample (paper rapid method)
BNCC360413
Quality control sample of total number of feed colonies
BNCC361567
Water quality fecal coliform negative quality control samples (paper rapid method)
BNCC360410
Seawater total bacterial colony count quality control sample
BNCC363185
Quality control samples of fecal coliforms in medical institutions
BNCC362171
Reference material of bacillus atrophaeus spores count
BNCC359098