KS H ISO 6091-2006 Dried milk-Determination of titratable acidity(Reference method)《奶粉 滴定酸度的测定(基准方法)》.pdf

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1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 6091 ()KS H ISO 6091: 2006 (2011 ) H ISO 6091: 2006 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2001 12 31 : 2006 11 29 : 2011 12 29 2011-0652 : : ( 02-509-7273) (http:/www.kats.go.kr). 10 5 , . ICS 67.100.10 K

2、S () H ISO 6091: 2006(2011 ) Dried milk Determination of titratable acidity(Reference method) 1980 1 ISO 6091 Dried milk Determination of titratable acidity(Reference method) , . ISO 6091 ISO/TC 34 , 1974 11 . IDF( ) AOAC( ) , FAO/WHO . 1. . 2. . . KS H ISO 707 KS H ISO 1736 ( ) 3. . 3.1 10 g pH 8.4

3、 0.1 mol/L mL 4. 5 g . 0.1 mol/L pH 8.40 . 10 g mL 2 (mL) . (natural buffering substance), . 5. , 10 . 5.1 , c(NaOH) = (0.10.000 2 mol/L)(1), . (1) “(0.10.000 2) N ” . 5.2 6. 6.1 6.2 pH pH 0.01 , , 0.01 pH pH 7 pH 9 . H ISO 6091: 2006 2 6.3 (magnetic stirrer) 6.4 0.1 mL 0.05 mL . 6.5 50 mL 6.6 100 m

4、L 150 mL , . 2 , , . 7. KS H ISO 707 . 8. 8.1 2 ( .) . . . 8.2 (8.1) (500/a)0.01 g (6.6) . a (%) . 100 (2) (KS H ISO 1736 ) . (2) IDF standard No. 26 “ ” , ISO/IDF/AOAC 8.3 8.3.1 (8.2) 20 50 mL . 20 . 8.3.2 pH (6.2) pH 5 pH 8.40 (6.4) (5.1) , (6.3) (5.2) . 1 . mL 0.05 mL . 9. 9.1 , V (8.3.2) (5.1) m

5、L . 2V . 9.2 2 10 g 0.1 mol/L 0.4 mL . 10. . . ( ) 153787 1 92 3(13) (02)26240114 (02)2624 01489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKorean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 6091: 2006 Dried milkDetermination of titratableacidity(Reference method)ICS 67.100.10

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