KS H ISO 5381-2008 Starch hydrolysis products－Determination of water content－Modified Karl Fischer method《水解淀粉制品 水含量的测定 改进的卡尔·费休法》.pdf

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS H ISO 5381 KS H ISO 5381:2008 2008 10 14 http:/www.kats.go.krKS H ISO 5381:2008 : ( ) ( ) KT&G ( ) : (http:/www.standard.go.kr) ： ： 2003 11 28 ： 2008 10 14 2008-0659 ： ： ( 025097266) (http:/www.kats.go.kr). 10 5 , . KS H ISO 5381:2008 Starch hydrolysis p

2、roducts Determination of water content Modified Karl Fischer method 1983 1 ISO 5381, Starch hydrolysis products Determination of water content Modified Karl Fischer method . ISO 5381 ISO/TC 93 . KS M ISO 760 . / . 1 . 2 . . ( ) . KS M ISO 760, ( ) ISO 565, Test sieves Metal wire cloth, perforated me

3、tal plate and electroformed sheet Norminal sizes of openings 3 , , 2- ( ) . 4 H2O I2 SO2 3C5H5N 2C5H5N HI C5H5N SO3C5H5N SO3 ROH C5H5NH OSO2OR R 2- . KS H ISO 5381:2008 2 5 . 0.1 %(m/m) . 5.1 “ ” . (KS M ISO 760 ) . 5.2 / 700 mL 300 mL . . 5.3 , (Na2C4H4O6 2H2O) “ ” . 10 mL / (5.2) . ISO 565 250 m .

4、 15.66 %(m/m) , 150 . 6 . 6.1 20 mL . 6.2 . 6.2.1 ( ) . 6.2.2 ( ) 10 mL A . 6.2.3 ( ) . KS H ISO 5381:2008 3 6.3 ( B ) 6.4 7 7.1 , . 24 . (6.1) / (5.2) 20 mL . . 60 (5.1) (7.3 ). . . 7.2 (6.2.1) (5.3) 500 mg 700 mg 0.5 mg . (m0) . 3 . 7.1 (5.1) (7.4.3.3 ). (V0) . 2 0.2 % . 7.3 . . 7.4 7.4.1 7.4.1.1

5、. . KS H ISO 5381:2008 4 7.4.1.2 ISO 565 500 m . 7.4.2 7.4.2.1 (6.2.3) (6.2.2) 120 mg 25 mL 20 mL (7.4.1.1) . 7.4.2.2 25 mL 20 mL (7.4.1.2) (6.2.1) 0.1 mg . 7.4.3 7.4.3.1 (7.4.2) . 7.4.3.2 . . 7.4.3.3 7.1 (5.1) . 1 . . 2 . 0.1 mL . 7.4.4 (7.4.1) 2 . 8 8.1 8.1.1 mL mg T . 00100 VHm m0： (7.2) (5.3) (m

6、g) H ： 5.3 V0： (7.2) (mL) KS H ISO 5381:2008 5 8.1.2 . mTV 100 V ： (7.4.3) (mL) m ： (7.4.2) (mg) T ： 8.1.1 mL mg (8.2 ) 2 . 8.2 2 . 1 %(m/m) 0.05 1 % 10 %(m/m) 0.1 10 % 20 %(m/m) 0.15 20 %(m/m) 0.2 9 . . . KS H ISO 5381:2008 6 A A.1 ( A.1 ) 10 mL . 8 mm 9 mm . 10/24 ( ) . 10/19 ( ) . A.2 . . . . . .

7、 , , . 1 2 3 ( ) 4 5 ( ) A.1 KS H ISO 5381:2008 7 B ( ) B.1 (aluminium sodium silicate) 0.05 mL 25 mL 50 mL (aluminium sodium silicate) S 29(28/15) “ ” (Drechsel bottle) PTFE (mild steel bar) KS H ISO 5381:2008 8 B.2 B.3 12/21 P I E R1 R2 G 135513 7017 (02)60094114 (02)600948878 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 5381:2008KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Starch hydrolysis products Determination of water content Modified Karl Fischer method ICS 67.180.20