Quality control sample of drinking water by enzyme substrate method|BNCC360392 |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 100mL 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 3~4mL of sterile water, suck it out after dissolution, and put it into a sterile bottle, repeatedly wash the inner wall of the vial with the remaining sterile water, and transfer all of it to the above sterile bottle, which is the standard sample stock solution.
Growth conditions	37 ℃, aerobic; 44.5 ℃, aerobic;
Storage conditions	-20 ℃, dark and refrigerated; ice bag transportation
Safety level	2
application	Reference standard: GB/T 5750.12-2006 Standard Test Method for Drinking Water Microbiological Index; Used for quality control of total coliform and Escherichia coli enzyme substrate method in drinking water;
Sharing mode	Public welfare sharing