Total number of colonies in water quality Plate count Standard substance|BNCC374022 |BNCC

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  • Quality control sample of total bacterial count in drinking water-BNCC

Quality control sample of total bacterial count in drinking water

  • Price： Contact
  • number：BNCC374022
  • Packing：Syringa;(1.9±0.4)× 10 ^ 5CFU/mL
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Quality control sample of total bacterial count in drinking water
Culture medium Peptone: 10.0, beef powder: 3.0, sodium chloride: 5.0, agar: 15.0,pH: 7.3±0.1(25 ℃)
Subculture procedure After taking out the standard sample from the refrigerator at -20 ℃, equilibrating at (20±2)℃ for 10 min, opening it in the biosafety cabinet, adding 5mL of sterile water or sterile physiological saline to redissolve the freeze-dried quality control substance, fully mixing and then preparing (to be tested) standard sample suspension with a concentration of (1.9±0.4)× 10 5CFU/mL
Growth conditions 37°C, aerobic, 18-24h;
Storage conditions -20 ℃, dark and refrigerated; ice bag transportation
Safety level 2
application "GB/T 5750.12-2023 Standard Test Methods for Drinking Water Microbial Indicators Total Colony Plate Counting Method" and "HJ 1000-2018 Determination of Total Bacteria in Water Quality Plate Counting Method" The strain numbers required for production are: BNCC269342, BNCC286903, BNCC238481 and BNCC293727.
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