1、 KS H ISO 4052 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS () KS H ISO 4052 :2007 (2012 ) 2007 7 26 http:/www.kats.go.krKS H ISO 4052:2007 : ( ) ( ) () () () ( ) : (http:/www.standard.go.kr) : : 2002 8 19 : 2007 7 26 :2012 12 28 : 20120814 : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS H ISO 405
2、2:2007 ii 1 1 2 1 3 1 4 1 4.1 1 4.2 1 4.3 1 4.4 2 4.5 2 4.6 2 4.7 2 5 2 5.1 ( 1 ) 2 5.2 2 5.3 2 5.4 2 5.5 2 5.6 3 5.7 3 6 3 7 3 7.1 3 7.2 3 7.3 3 7.4 4 7.5 5 8 5 8.1 6 8.2 6 8.3 7 9 7 i KS H ISO 4052:2007 ii 1983 ISO 4052, CoffeeDetermination of caffeine content(Reference method) , . ISO 4052 ISO/TC
3、 34 . , , , . . KS H ISO 4052:2007 (2012 ) () Coffee Determination of caffeine content(Reference method) 1 . , , , ( ) ( ) . 0.02 %. 2 . . ( ) . KS H ISO 3726, 70 KS H ISO 4072:2003, KS H ISO 6673, 105 ISO 1447:1978, Green coffeeDetermination of moisture content (Routine method) ISO 6670:2002, Insta
4、nt coffeeSampling method for bulk units with liners 1)3 . 2 ( , ) . ( ) . 4 . . 4.1 200 g/L c(H 2 SO 4 ) 2 mol/L 4.2 80 g/L c(NaOH) 2 mol/L 4.3 98 % . 1) KS H ISO 4052:2007 545 . 4.4 70 g/L ( 20 0.9 g/mL): = 1:2 () 4.5 (7.5 ) . 1 100 g 800 mL . ( ). 4.6 1,3,72,6(C 8 H 10 N 4 O 2 ) 4.7 4.5 (7.5 ) . 5
5、 5.1 ( 1 ) 250 mm, I 21 mm, II 17 mm PTFE (stopcock) . 5.2 0.004 . 5.3 100 mm . 5.4 5.4.1 100 mL 5.4.2 5.4.3 50 mL, 100 mL 1 000 mL 5.4.4 2 mL 5 mL 5.4.5 5.5 . 2 KS H ISO 4052:2007 5.6 5.7 ISO 33101 600 m 630 m 6 . KS H ISO 4072 . ISO 6670 . . 7 7.1 5.5 5.6 (5.7) . 7.2 2) (7.1) . 7.3 7.3.1 1 g 0.1 m
6、g . 100 mL (5.4.1) , (4.4) 5 mL (5.4.2) 2 . 100 mL . (5.4.4) 5 mL 100 mL (5.4.1) , (4.3) 6 g . 7.3.2 7.3.1 0.5 g , 2 mL 3 g . 7.3.3 7.3.1 0.5 g 1 2.5 g, 2 mL 3 g . 7.3.4 2) ISO 1447, 105 KS H ISO 6673 . 70 KS H ISO 3726 . .3 KS H ISO 4052:2007 1 g 0.1 g . (5.4.1) , (4.4) 5 mL (5.4.2) 2 . (4.3) 6 g .
7、 7.3.5 7.3.4 0.5 g . 7.3.6 7.3.4 0.5 g 1 2.5 g 7 8 g . 7.4 7.4.1 7.4.1.1 I( ) 7.4.1.1.1 A (4.3) 3 g (4.2) 2 mL ( ) . . 2 g 21 mm , . . A . , . 5.16 g . 7.4.1.1.2 B (7.3) A . (4.3) 1 g . , B . 7.4.1.2 II( ) , (4.3) 3 g (4.1) 3 mL 7.4.1.1 I A . . , . 6.36 g . 7.4.2 I II . (4.5) 150 mL . II . I . I II
8、50 mL II . II . 4 KS H ISO 4052:2007 iron(II) sulphate . ( ) II ( ). (4.7) 4550 mL II . 50 mL (5.4.3) , (4.7) . 1.5 mL/min 3 mL/min . . . 7.4.3 ( 2 ) 7.4.3.1 ( 276 nm) 30 nm (4.7) (7.4.2) (5.3) . (7.4.2) . . 8.1.1, 8.1.2 8.1.3 . 0.2 . 7.4.3.2 . (4.6) (10020) mg 0.1 mg . 1 000 mL (5.4.3) . (5.4.4) 5
9、mL 50 mL (5.4.3) . 7.4.3.1 . (8.1.1 2) 0.4 . 7.4.4 2 . 7.5 . (4.5 4.7 ) . 8 5 KS H ISO 4052:2007 8.1 8.1.1 100 g g . P m A A c 2 1 7 10 c : (7.4.3.2) (g/mL) A 1 :7.4.3.1 , 2 ) ( ) ( ) ( nm 30 1 nm 30 1 1 A A A : ( 276 nm) A 2 : , 2 ) ( ) ( ) ( nm 30 2 nm 30 2 2 A A A m : (g) P : (7.2 ) 8.1.2 100 g g
10、 , . P m A A c 2 1 6 10 258.1.1 . 8.1.3 , , 100 g g . P m A A c 2 1 5 10 58.1.1 . 8.1.4 (8.2 ) , . 8.2 2 1 . 6 KS H ISO 4052:2007 8.3 2 1 . 1 g/100 g ag /100 g ag /100 g 2 1 0.1 0.12 0.08 0.01 0.38 0.31 0.01 2 1 0.1 0.10 0.04 0.01 0.32 0.19 0.01 4 2 0.3 0.17 0.12 0.01 0.39 0.20 0.01 a 95 % . 9 . . 7
11、 KS H ISO 4052:2007 21 mm I () 250 mm 3 g NaOH 2 mL(= 5.16 g) ( PTFE) 17 mm II () 250 mm 3g 3 mL(= 6.36 g) ( PTFE) 1 8 KS H ISO 4052:2007 9 : 10 mm : : (276 nm) 1.2 1.0 0.8 0.6 0.4 (246 nm) 0.2 (306 nm) 0.0 340 320 220 260 300 240 280 , nm 2 () 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS H ISO 4052 :2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Coffee Determination of caffeine content(Reference method) ICS 67.140 Korean Agency for Technology and Standards http:/www.kats.go.kr