Standard quality control sample for fecal coliforms in water quality (paper rapid method)|367767 |BNCC

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Water quality fecal coliform standard quality control sample (Paper Rapid Method)

Growth conditions	37 ℃; 18-24h; Aerobic
Subculture procedure	① Dissolve the sample in 100mL sterile water or sterile physiological saline; ② Before use, place the quality control sample at room temperature for 30 minutes, then open it in a biosafety cabinet and immediately add 3-4 mL of sterile water. Dissolve it and aspirate it into a sterile bottle; ③ Repeat the washing of the remaining sterile water on the inner wall of the penicillin bottle and transfer it all to the above-mentioned sterile bottle, which is the negative quality control sample, totaling 100mL, with a concentration of 1.0 × 10 ^ 4~5.0 × 10 ^ 4MPN/L;
Storage conditions	2-8 ℃
Sharing mode	Public welfare sharing