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 |
Bacillus subtilis spore suspension
BNCC358969
Fecal coliform standard quality control sample (Multitube fermentation method)
BNCC359289
Standard quality control samples of Escherichia coli in drinking water (multi-tube fermentation method)
BNCC360415
Water quality total coliform positive quality control samples (Paper Rapid Method)
BNCC360409
Clostridium sporogenes spore suspension
BNCC362136
Bacillus pumilus spore suspension
BNCC361954