KS I ISO 6222-2008 Water quality－Enumeration of viable micro-organisms－Colony count by inoculation in or on a nutrient agar culture medium《水质 可培养微生物的计数方法 营养琼脂介质中接种法进行群落计数法》.pdf

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3、 . , . . 2 . . ( ) . KS M ISO 3696, KS M ISO 5667 2, 2： KS M ISO 5667 3, 3： KS M ISO 8199, KS I ISO 6222:2008 2 ISO 6887, Microbiology General guidance for the preparation of dilutions for microbiological examinations 3 . 3.1 , , 4 . 36 44 , 22 68 . mL (colony forming unit, c.f.u.) . 5 . 5.1 ( ) 5.2

4、 (362) 5.3 (222) 5.4 90 mm 100 mm 5.5 (451) (water bath) 5.6 6 KS M ISO 5667 23 . (53) 12 . 7 7.1 , , . KS I ISO 6222:2008 3 . . 7.2 KS M ISO 8199 (peptone diluent) . 7.3 (tryptone)6 g (dehydrated yeast extract)3 g 1020 g( .) 1 000 mL . pH 25 7.20.2 . , 1520 mL . 500 mL . (1213) (5.1) (151) . (451)

5、. 45 4 . 8 8.1 KS M ISO 5667 3 ISO 6887 . 2 mL , 1520 mL (pour-plate method) . 15 . 1 . 8.2 (362) (444) , (222) (684) . . (53) 48 . . 8.3 KS M ISO 8199 1 mL KS I ISO 6222:2008 4 . 9 mL (cfu/mL). , mL 1 . 300 300 . 10 . a) b) ( ) c) d) 9. e) ( ) 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS I ISO 6222:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Water qualityEnumeration of viable micro-organismsColony count by inoculation in or on a nutrient agar culture medium ICS 07.100.20