KS H ISO 7238-2006 Butter-Determination of pH of serum-Potentiometric method《奶油 乳清pH值的测定 电位滴定法》.pdf

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1、KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 7238 pH ()KS H ISO 7238: 2006 (2011 )H ISO 7238: 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 67.100.20

2、KS pH () H ISO 7238: 2006(2011 ) Butter Determination of pH of serum Potentiometric method 1983 1 ISO 7238 Butter Determination of pH of serum Potentiometric method , . ISO 7238 ISO/TC 34 , 1982 7 . (IDF) (AOAC International) , . 1. pH . 2. . . KS H ISO 707 KS M ISO 3696 3. . 3.1 pH pH . 4. . 5. , K

3、S M ISO 3696 1 . 5.1 pH . pH , pH . pH 4 7 . . 1. 20 pH 4.00 25 4.01 120 (KHC8H4O4) 10.12 g . 1 000 mL 2 mL . 2. 20 pH 6.88 25 6.86 120 2 (KH2PO4) 3.388 g (Na2HPO4) 3.533 g . 1 000 mL 2 mL . H ISO 7238: 2006 2 6. . 6.1 pH , 0.01 pH . . 6.2 ( ) (1) 375 g . (1) KS H ISO 2446 ( ) 6.6( ) 6.3 ( ) 50 mL 6

4、.4 12 mL 1620 mm . 6.5 ( ) 65 . 6.6 ( ) 6.7 1 . 7. KS H ISO 707 . 8. 8.1 50 g . 8.2 (6.4) . . (6.3) (6.5) . (35 ) 375 g 5 . (6.6) . 8.3 pH (5.1) pH . 30 pH . 8.4 pH . 0.01 pH pH . (6.7) . 8.5 3035 . 9. 0.01 pH pH . 10. 10.1 2 0.03 pH 20 1 . 10.2 2 0.10 pH 20 1 . H ISO 7238: 2006 3 11. . . pH ( ) 153787 1 92 3(13) (02)26240114 (02)2624 01489 http:/ KSKSKSSKSKS KSKS SKS KSKS SKSKS KSKSKSKS H ISO 7238: 2006 ButterDetermination of pH ofserumPotentiometric methodICS 67.100.20 Korean Agency for Technology and Standards http:/www.kats.go.kr

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