1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS 2006 11 29 http:/www.kats.go.krKS H ISO 5548 KS H ISO 5548: 2006 (2011 ) H ISO 5548: 2006 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 2001 12 22 : 2006 11 29 : 2011 12 29 2011-0652 : : ( 02-509-7273) (http:/www.kats.go.kr). 10 5 , . ICS 67.100.99 KS
2、H ISO 5548: 2006(2011 ) Caseins and caseinates Determination of lactose content Photometric method 1980 1 ISO 5548 Caseins and caseinates Determination of lactose content Photometric method , . ISO 5548 ISO/TC 34 , 1979 3 . 1. 2.0 % . 2. . . KS H ISO 707 ISO 3310 1 Test sieves Technical requirements
3、 and testing Part 1: Test sieves of metal wire cloth 3. . 3.1 , . 4. a) , b) , c) 3 5 (pentasodium triphosphate) . pH 4.6 , . , 490 nm . 5. , . 5.1 (NaHCO3) 5.2 35(Na5P3O10) 5.3 c(HCl) c(1/2 H2SO4) = 0.1 mol/L 5.4 100 g/L 5.5 c(CH3COONa) = 1 mol/L H ISO 5548: 2006 2 5.6 80 %(m/m) . 8 g 2 g . 5.7 (20
4、1.84 g/mL) 5.8 20 g/L 2.00 g 1 (2.1050.001) g 100 mL 100 mL 0 . 6. . 6.1 6.2 100 mL 6.3 1 mL , 2 mL 10 mL 6.4 0.001 mL 0.2 mL 6.5 25 mL 6.6 40 mL . 6.7 1 5 mL . 6.8 6070 . 6.9 12 cm 490 nm . 6.10 . 6.11 . (8.1.4 ) . . 6.12 ISO 3310 1 , 500 m, 200 mm . 6.13 100 mL 6.14 20 . 7. KS H ISO 707 . 8. 8.1 8
5、.1.1 ( ). 8.1.2 50 g (6.12) . 8.1.3 50 g 8.1.1 . 8.1.4 (6.11) . . 8.1.5 (8.5) . 8.2 (0.10.001) g 3 5 (0.10.001) g . 8.4.28.5.1 , , . , (8.6) H ISO 5548: 2006 3 . 8.3 1 g 1 mg (6.2) . 8.4 8.4.1 (5.1) (0.10.001) g, 3 5 (5.2) (0.1 0.001) g . 8.4.2 6070 (6.8) 25 mL . 8.4.3 ( 1015 ) 15 mL, (5.3) 8 mL, (5
6、.4) 1 mL . . 8.4.4 5 (5.5) 1 mL . 8.4.5 . mL . 8.5 8.5.1 (8.4.5) 2 mL (6.6) , (6.4) (5.6) 0.2 mL . (6.7) 1 (5.7) 5 mL . (6.10) 15 . 20 (6.14) 5 8.5.2 . 8.5.2 (8.2) 490 nm (8.5.1) . 8.5.3 (8.6 ) 2 mL (8.4.5) 2 mL 8.5.1 8.5.2 . 9.1 . 8.6 8.6.1 (5.8) 10 mL 100 mL (6.13) ( A). A 1 mL 2 mg . A 1 mL, 2 mL
7、 3 mL 3 100 mL 100 mL 3 . 20 g/mL, 40 g/mL 60 g/mL . 8.6.2 4 (6.6) 2 mL 3 2 mL 2 mL 8.5.1 . 8.6.3 2 mL 3 . 8.6.4 mL g . . 9. 9.1 . 10050106mcH ISO 5548: 2006 4 c: (8.6.4) (8.4.5) (g/mL) m: (8.3) (g) 9.2 (1) 0.2 %(m/m) , 100 g 0.03 g 20 1 . 9.3 (1) 0.2 %(m/m) , 100 g 0.04 g 20 1 . (1) . 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 5548: 2006 Caseins and caseinatesDetermination of lactose contentPhotometric methodICS 67.100.99