Weiyel Reference Materials
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| Subculture | Brain heart extract medium (English name: BHIA/BHIB): brain extract 5.0g, heart extract 12.5g, peptone 5.0g, tryptone 10.0g, sodium chloride 5.0g, glucose 2.0g, disodium hydrogen phosphate 2.5g, agar 20.0g (not included in liquid medium),pH 7.4±0.2. Sterilization at 121 ℃ for 15min. |
| Subculturing | Samples require a total of 250mL of sterile water or sterile saline to dissolve. Before use, the quality control sample is placed at room temperature for 30min, dissolved and sucked out into a sterile bottle, the remaining sterile water is repeatedly washed into the inner wall of the penile bottle, and all of them are transferred to the above sterile bottle, which is the standard sample stock solution. |
| Growth conditions | 37 ℃;18-24h; Aerobic |
| Storage conditions | -20 ℃ |
| Safety level | 1 |
| Application | Applicable to GB8538-2016 "National Food Safety Standard Drinking Natural Mineral Water Testing Method" |
| Sharing mode | Public welfare sharing |
Fecal coliform positive control quality control sample (Multi-tube fermentation method)
BNCC359094
BNCC362181
Bacillus subtilis spore suspension
BNCC361464
8099 Escherichia coli carrier (steel sheet)
BNCC361998
Bacillus subtilis spore suspension
BNCC358980
Water quality fecal coliform positive quality control sample (Membrane membrane method)
BNCC360396