1 thought on “E. coli detection method (national standard method) in tap water (national standard method)”
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Testing method of E. coli (SN method) The test of diarrhea E. coli (GB method introduction) The tests of E. coli O157: H7 (1) National standard: National standards use three three The footwork, namely: lactose fermentation test, separation training, and confirmation test. (2) The industry standards formulated by the former State Administration of Commerce Inspection, equivalent use of the US FDA standard method to detect E. coli in exported foods. This method adopts two steps: H G speculation test: After the sample is diluted, select three dilution degrees, each dilution degree to inoculate tri -tube LST soup. Cultivate 48 ± 2h at 36 ± 1 ℃ to observe whether it is produced. K 界-FPL8 $ 8 $ The test test: Incorporate the gas pipe culture material in the pipeline of the green lactose gallbladder salt (BGLB) soup tube, 36 Cultivate 48 ± 2h at ± 1 ℃ to observe whether it is produced. BGLB is positive. Check the MPN table and report the mpn value of the colonic flora in each ml (g) sample.
Testing method of E. coli (SN method)
The test of diarrhea E. coli (GB method introduction)
The tests of E. coli O157: H7
(1) National standard: National standards use three three The footwork, namely: lactose fermentation test, separation training, and confirmation test.
(2) The industry standards formulated by the former State Administration of Commerce Inspection, equivalent use of the US FDA standard method to detect E. coli in exported foods. This method adopts two steps: H
G speculation test: After the sample is diluted, select three dilution degrees, each dilution degree to inoculate tri -tube LST soup. Cultivate 48 ± 2h at 36 ± 1 ℃ to observe whether it is produced. K
界-FPL8 $ 8 $
The test test: Incorporate the gas pipe culture material in the pipeline of the green lactose gallbladder salt (BGLB) soup tube, 36 Cultivate 48 ± 2h at ± 1 ℃ to observe whether it is produced. BGLB is positive. Check the MPN table and report the mpn value of the colonic flora in each ml (g) sample.