Standard Quality Control Sample of Total Colony Count in Drinking Water (Enzyme Substrate Method)|BNCC377601 |BNCC

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Quality control samples by enzyme substrate method for drinking water

Culture medium	Ammonium sulfate: 5.0, manganese sulfate: 0.0005, zinc sulfate: 0.0005, magnesium sulfate: 0.1, sodium chloride: 10.0, calcium chloride: 0.05, sodium sulfite: 0.04, amphotericin B:0.001,ONPG:0.5,MUG:0.075,Solanium extract: 0.5,HEPES:6.9,HEPES sodium salt: 5.3
Subculture procedure	Samples required a total of 5mL of sterile water or sterile saline to dissolve. Before use, place the quality control sample at room temperature for 30min, then open it in the biosafety cabinet, immediately add 5mL sterile water, shake and mix well, and then it is the standard sample stock solution.
Growth conditions	37 ℃, aerobic; incubation time 48 hours;
Storage conditions	-20 ℃, dark and refrigerated; ice bag transportation
Safety level	2
application	Reference standard: "GB/T 5750.12-2023 drinking water standard test method microbiological index"; Used for quality control of total bacterial count enzyme substrate method in drinking water;
Sharing mode	Public welfare sharing