1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS H ISO 4876 KS H ISO 4876:2012 2012 12 28 http:/www.kats.go.krKS H ISO 4876:2012 : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) ： ：2004 12 29 ：2012 12 28 2012-0806 ： ： ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS H ISO 4876:2012 i ii . iii 1 1 2 1
2、 3 1 4 1 5 3 6 .4 7 4 7.1 4 7.2 4 7.3 .4 7.4 .6 8 .6 8.1 .6 8.2 6 9 .7 A 8 A.1 .8 A.2 (acid pre-digestion).8 A.3 8 B .10 KS H ISO 4876:2012 ii ISO(the International Organization for Standardization) (ISO ) . ISO . . ISO . ISO . ISO 4876 ISO/TC 126 , 1978 11 . . , USSR . KS H ISO 4876:2012 iii 1980 1
3、 ISO 4876, Tobacco and tobacco products Determination of maleic hydrazide residues , . KS H ISO 4876:2012 Tobacco and tobacco products Determination of maleic hydrazide residues 1 . , . 2 . . ( ) . KS B ISO 1770, 1)KS H ISO 4874, 2)KS L ISO 1042, ISO 4793, Laboratory sintered(fritted) filters Porosi
4、ty grading, classification and designation2)3 . (succinic hydrazide) , . (hydrazine) 4 (4 dimethy-laminobenzaldehyde) . . 4 . 1) (ISO/R 1770 1970 ) 2) KS H ISO 4876:2012 2 4.1 4 (4 dimethylaminobenzaldehyde) 4 20 g 0.5 M 1 L 4.1.1 4 20 g 150 mL . 5 g 5 . (Buchner funnel) 0 200 mL . 50 mL . phosphoru
5、s(V) oxide . 4.1.2 2 g 0.5 M (4.6) 100 mL . (sintered glass filter funnel) . 1 . . 4.2 10 g/mL 10 mg 0.1 mg 0.1 M (4.5) 100 mL 1 000 mL . 4.3 500 m (bulk density) 1.70 g/cm3 . . (hydrazine sulfate) 4 . 4.4 12.5 M 4.5 0.1 M 4.6 0.5 M 4.7 (II) 4 Iron(II) chloride tetrahydrate(FeCl2 4H2O) KS H ISO 4876
6、:2012 3 4 . 4.8 (anti-foam agent) ( ) 4.9 (anti-bumping granules) 4.10 (high boiling point oil) / (5.5) 4.11 (7.4 ). 5 . 5.1 KS L ISO 1042 A 25 mL 100 mL 1 000 mL 5.2 (measuring cylinder) 100 mL 5.3 250 mL 5.4 (sintered glass filter funnel, Buchner funnel) ISO 4793 (porosity grade) P 100 . 5.5 (stea
7、m distillation apparatus)( 1 ) . a) b) / c) d) / KS B ISO 1770, 9/75 0360 500 mL . / (three way tap) . KS H ISO 4876:2012 4 . / (boiling rate) . . 5.6 10 mm 425 nm, 455 nm 485 nm . 6 KS H ISO 4874 . 7 7.1 2 mm . . 7.2 1 g 0.01 g . 7.3 (alkaline digestion) (acid pre-digestion) ( A ). 7.3.1 / (4.4) 50
8、 mL (4.8) (4.9) . (4.10) (well) 0 360 . 165 . 10 15 . 5 . 7.3.2 ( B ) 10 mL (4.6) 100 mL (5.2) . / (II)(4.7) 0.5 g (4.3) 15 g . (20010) , . . 20 100 mL . . (5.4) 250 mL 5 mL . 6 mL . . KS H ISO 4876:2012 5 ( A ). 1 7.3.3 4 7.3.2 25 mL (5.1) . 4 (4.1) 2 mL . 30 . 7.3.4 7.3.3 10 mm . 4 (4.1) 2 mL (4.6
9、) 10 mL 25 mL (reference) . (5.6) 425, 455 485 nm . KS H ISO 4876:2012 6 Acorr . 2485425455AAA+ A425, A455 A485： 425, 455 485 nm 455 nm 0.8 4 (4.1) 2 mL (4.6) 10 mL 25 mL . 2 . 7.4 080 g (4.2) 0, 1, 2, 5 8 mL (4.11) 1 g 7.3.1, 7.3.2 7.3.3 . 7.3.4 . g . . 8 8.1 . g g , . wo100100mmm m ： (g) mo ： (tes
10、t portion) (g) mw ： (7.3.4 ). (8.2) . 8.2 , , 10 g/g 5 % , 10 g/g 1 g/g . KS H ISO 4876:2012 7 9 . , ( , A ) . . KS H ISO 4876:2012 8 A A.1 A.1.1 . A.2 (acid pre-digestion) . A.1.2 , 4 . A.3 . A.1.3 . A.2 (acid pre-digestion) A.2.1 A.2.1.1 3 M 1.18 g/mL 270 mL 1 000 mL . A.2.1.2 700 g/L A.2.2 / . (A
11、.2.1.1) 50 mL . 20 25 mL . 25 mL 20 25 mL . , . 50 mL (A.2.1.2) 7.3.1 . A.3 A.3.1 KS H ISO 4876:2012 9 A.3.1.1 3)A.3.2 7.3.2 (A.3.1.1) 2 g 1 7.3.2 6 mL . 3) . ISO/TC 126(DIN, ) ISO . KS H ISO 4876:2012 10 B B.1 . B.2 . . . 10 %( ) . . . , . B.3 . B.4 . / (II) . B.5 . 153787 1 92 3(16) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS H ISO 4876:2012KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Tobacco and tobacco products Determination of maleic hydrazide residues ICS 65.160
