Quality control sample of total bacterial count in drinking water (plate counting method)|374001 |BNCC

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Quality control sample of total bacterial count in drinking water

Culture medium	BNCC352239
Description	Nutrient Agar
Composition	Peptone:10.0g, Beef Extract Powder:3.0g, NaCl:5.0g, Agar:15.0g, pH:7.3±0.1(25℃)
Growth conditions	37 ° C, aerobic, 18-24h;
Subculture procedure	After removing the quality control sample from the -20 ℃ refrigerator, place it at room temperature for 30 minutes to equilibrate. Then, open it in a biosafety cabinet and immediately add 30mL of sterile water or sterile physiological saline to dissolve the freeze-dried quality control sample. After thorough mixing, prepare a sample suspension, which is the quality control sample with a concentration of 30-300CFU/mL.
Storage conditions	-20 ° C, refrigerated in the dark; Ice pack transportation
Sharing mode	Public welfare sharing