1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 5764 ( ) KS H ISO 5764: 2006 (2011 ) H ISO 5764: 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
2、 KS ( ) H ISO 5764: 2006(2011 ) Milk Determination of freezing point Thermistor cryoscope method 1987 1 ISO 5764 Milk Determination of freezing point Thermistor cryoscope method . ISO 5764 ISO/TC 34 . (IDF) (AOAC) , . Hortvet 1 ( ) . . “ (plateau)” , . , 2 . . 1. , , , . . , . , , , , . 100 mL 0.18
3、g . 2. . . KS H ISO 707 KS H ISO 6091 ( ) KS L ISO 1042 3. . 3.1 . 4. H ISO 5764: 2006 2 . . ( ) . 5. . , . , , . 5.1 , ( ), “ ”, , , . 5.1.1 . 33 %(V/V) 1,2 ( ) . 5.1.1.1 0.2 . 0.5 . . 5.1.1.2 . 0.5 . 5.1.2 (1.80.2) mm 0.31 mm . 2 ( ) . 0.512 0.000 5 , . 5 % . (44.60.1) mm ( 1 ) . / . 21TRdTdR = T:
4、 R: T () RdTdR 1 : : 3 000 . 5.1.3 5.1.3.1 “ ” . 20 0.001 . . 5.1.3.2 10 % 210 5 H ISO 5764: 2006 3 . 0.3 % . . 0.001 5.1.3.3 0 1 0.001 . 0.001 . 0.400 0.600 0.001 . 5.1.4 (stirring wire) 1 mm 1.5 mm . , . 1.5 mm . ( 1.5 mm) . . 5.1.5 . 12 . 5.1.6 ( 1 ) (50.80.1) mm, (160.1) mm, (13.50.1) mm . 0.1 m
5、m . (2.50.1) mL 29.8 mm, 21 mm . 5.1.7 , 6 % 1 % . 5.2 5.2.1 0.1 mg . 5.2.2 KS L ISO 1042 A 1 000 mL 5.2.3 (1301) (30025) 5.2.4 5.3 5.3.1 (202) . 5.3.2 (30025) (5.2.3) 5 (130 1) (5.2.3) 24 . 5.3.3 (5.3.2) ( 1 ) . (5.3.1) 1 000 mL (202) . 250 mL 5 . H ISO 5764: 2006 4 1 g NaCl/L H *6.859 7.818 8.149
6、8.314 8.480 8.646 8.811 8.977 9.143 10.155 0.408 0.464 0.483 0.492 0.502 0.512 0.521 0.531 0.541 0.600 0.422 0.480 0.500 0.510 0.520 0.530 0.540 0.550 0.560 0.621 *Hortvet ( )( B ) 1. . . 2. . 3. 1/4 , ( thiomersal 10 g/L) 2 . 6. 12 . , , . ( 1 ) 2 . 0.100 . ( . .) 2.5 mL . , . . . . . 7. 7.1 KS H I
7、SO 707 . 7.2 5 . 12 18 . . . 7.3 (05 ) . H ISO 5764: 2006 5 . 7.4 KS H ISO 6091 . 8. 8.1 . . 12 , . 8.2 , 0.001 ( 0.512 ) . 0.002 6. . 1 1 . 8.3 . (2.50.1) mL . , . . 0.1 . ( .) , . 2 , 45 5 . (202) . . . . . , 2 . (0.004 ) 2 . 8.4 ( , . .). 9. 9.1 ( A ). 9.2 H ISO 5764: 2006 6 95 % . 9.2.1 2 0.004
8、. 9.2.2 0.006 . 10. . a) b) c) d) e) f) : mm 1 ( ) 13.50.1160.150.80.1H ISO 5764: 2006 7 A . ( ) 0.544 0.545 0.544 0.545 0.546 0.546 H ISO 5764: 2006 8 B Hortvet Hortvet 70 g/L( 0.422 ) 100 g/L( 0.621 ) (US Bureau of Standards) , . Hortvet Hortvet Hortvet . 0.407 46 0.599 68 . . a) . b) 0.199 0.192
9、. . Hortvet . . TC = 0.965 6TH TH = 1.035 6TC TC: ( ) TH: ( H) 5.3.3 1 H ISO 5764: 2006 9 1 Hortver, J. J. Ass. Off. Agric. Chem. 5, p. 470 484(1922) 2 Bulletin of the International Dairy Federation(1983), No. 154 3 Bulletin of the International Dairy Federation(1986), No. 207 ( ) 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 5764: 2006 MilkDetermination of freezing pointThermistor cryoscope methodICS 67.100.10
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