1、 KS H ISO 11817KSKSKSKSSKSKSKS KSKSKS SKSKS KSKS SKS KS ()KS H ISO 11817: 2007 2007 7 26 http:/www.kats.go.krKS H ISO 11817: 2007 : ( ) ( ) F&B ( ) ( ) : (http:/www.standard.go.kr) : : 2002 8 19 :2007 7 26 2007-0451 : : ( 02-509-7266) (http:/www.kats.go.kr ). 7 5 , . KS H ISO 11817: 2007 i ii 1 1 2
2、1 3 .1 4 .1 5 .1 6 .2 6.1 2 6.2 .2 6.3 .2 7 .2 7.1 .2 7.2 2 7.3 2 7.4 3 7.5 .3 7.6 3 7.7 3 7.8 .4 8 4 9 4 9.1 .4 9.2 .4 10 4 10.1 .4 10.2 .4 10.3 .4 10.4 .5 10.5 5 10.6 .5 10.7 .5 11 .6 11.1 .6 11.2 .6 12 .6 A( ) 7 KS H ISO 11817: 2007 ii 1994 1 ISO 11817, Roasted ground coffee Determination of mois
3、ture content Karl Fischer method(Reference method) . ISO 11817 ISO/TC 34 (SC 9) . A . KS H ISO 11817: 2007 ( ) Roasted ground coffeeDetermination of moisture content Karl Fischer method(Reference method) 1 . . 2 . . KS M ISO 760: 2002, ( ) 3 . 3.1 . . 4 65 ( ) . (biamperometric method) . 5 . H2O I2
4、SO2 ROH 3RnNH3 n 2RnNH3 n HI RnNH3 n HSO4R R: KS H ISO 11817: 2007 2 . 6 , . 6.1 1) 2 6.2 0.01 %(m/m) . 6.3 0.3 nm , 2 mm, ( ) 100 mL 75 g 7 . 7.1 (405) . 7.2 7.2.1 0.000 1 g . 7.2.2 0.001 g . 7.3 7.3.1 100 mL . (thyristor regulator) . 7.3.2 100 mL (conical sleeve) . 3 . 1) .KS H ISO 11817: 2007 3 7
5、.3.3 2530 cm , . 7.3.4 40 g (6.3) . 7.4 , 7.4.17.4.5 . 7.4.1 7.4.2 7.4.3 . 7.4.4 100 mL 3 . , , . . 0.5 mL . 4 . . 7.4.5 0.05 mL , ( 0.02 mL). , . (6.1 ) . 7.5 3040 L . 0.05 mL 7.6 (molecular seive) . 7.7 KS H ISO 11817: 2007 4 1 mL 100 mL 7.8 5 mL , 10 mL 50 mL 8 . 9 9.1 . 9.2 . 10 10.1 KS M ISO 76
6、0 (6.1 ) . (7.5 ) , (7.2.1) . 3040 mg (10.6 ) , T . VmT = m: (mg) V: (6.1 ) (mL) 10.2 40 (7.1 ) . (7.6 ) . 10.3 100 mL (7.3.2 ) 75 mL (6.2) . (7.3.3 ) (7.3.1 ) . . (7.3.4) 30 . . KS H ISO 11817: 2007 5 . . ( ) . 10.4 100 mL (7.3.2 ) 50.0 mL 30 . . 10.0 mL 10.5 10.6 . . 10.5 100 mL (9. ) 3 g , 0.001
7、g . 50.0 mL . 10.3 . 30 . . 10.6 (7.4 ) . . ( g) . 1060 g/ min . 60 g/min . 35 mL (7.4.2) . 20 . 10.7 10.5 10.0 mL 3 %(m/m) , 10.6 . (7.4.3 ) . . 20 15 mV . 3 ( ). (10.6 ). 3 (11.1 ) . KS H ISO 11817: 2007 6 11 11.1 ww , . E215234100)(mVVTVVVVww= T : (10.1) , mL mg mE : (mg) V1 : (10.5 ) (mL) V2 : (
8、mL) V3 : (10.4 ) (6.1 ) (mL) V4 : (10.7 ) (6.1 ) (mL) V5 : (10.4 ) (mL) . 11.2 A . . 11.2.1 2 0.14 % . 11.2.2 2 0.25 % . 12 . . KS H ISO 11817: 2007 7 A ( ) 1988 Deutsches Institut fr Normung 9 2 A.1 (KS A ISO 57252) .) . A.1 9 %(m/m) 4.21 sr % 2.83 sr0.050 6 1.2 0.14 sR % 2.83 sR0.086 6 2.5 0.24 2)
9、 KS A ISO 5725( ), ( ) ( ) 135513 7017 (02)60094114 (02)600948878 http:/ KS H ISO 11817: 2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Roasted ground coffee Determination of moisture content Karl Fischer method (Reference method) ICS 67.140.20 Korean Agency for Technology and Standards http:/www.kats.go.kr