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 | 2 |
| Application | Applicable to GB8538-2016 "National Food Safety Standard Drinking Natural Mineral Water Testing Method" |
| Sharing mode | Public welfare sharing |
Reference material of escherichia coli count in food
BNCC359092
Reference material of bacillus atrophaeus spores count
BNCC359096
Bacillus subtilis var. niger spore carrier (steel plate)
BNCC362002
Water Quality Total Coliform Standard Quality Control Sample (Paper Rapid Method)
BNCC360407
Shigella quality control sample of sludge from medical institutions
BNCC362176
Bacillus stearothermophilus spore suspension
BNCC360469