1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS M ISO 24698 2 - (NBR) 2: (Kjeldahl) KS M ISO 24698 2:2010R 2010 11 4 http:/www.kats.go.krKS M ISO 24698 2:2010R : ( ) ( ) () () ( ) : (http:/www.standard.go.kr) : :2010 6 15 :2010 11 4 2010-0495 : : ( 02-509-7274) (http:/www.kats.go.kr). 10 5 , . KS M ISO
2、 24698 2:2010R - (NBR) 2: (Kjeldahl) Rubber, raw Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR) Part 2: Kjeldahl method 2008 1 ISO 24698 2, Rubber, raw Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR) Part 2: Kjeldahl method , .
3、 . . . , . . 1 (Kjeldahl) NBR . 1 2 . 2 . . ( ) . KS M ISO 1407, KS M ISO 1795, KS M ISO 24698 2:2010R 2 3 , . . 4 4.1 : , 99.5 % 4.2 , 0.05 mol/dm3 , 0.05 mol/dm34.3 , 1.84 g/cm34.4 , 10 mol/dm34.5 (K2SO4) 4.6 (CuSO4 5H2O) 4.7 , . (methyl red) (methlene blue) (bromophenol blue) 4.8 , ( , 3 % 4 % ).
4、 4.9 , 95 %( ) 4.10 , 99.8 %( ) 5 5.1 5.1.1 . a) (digestion) , . b) , . c) , , NH3 , . d) , , KS M ISO 24698 2:2010R 3 . e) , (%) . 5.1.2 10 . 10 0.2 % . 0.5 % . (%) 100Ns s : N: ( %) 5.2 , 0.1 mg . 5.3 , KS M ISO 1407 B . 5.4 , 300 cm3 5.5 5.6 , 150 m 5.7 5.8 , 100 2 . 5.9 , 100 5 . 6 , 6.1 KS M IS
5、O 1795 10 g 50 g , 0.2 mm0.05 mm (nip set) 100 5 . 3 g 5 g . KS M ISO 1407 B , . 150 m . , 10 0.1 mg 100 2 . 6.2 KS M ISO 24698 2:2010R 4 6.2.1 . 6.2.2 . 6.2.3 . 7 7.1 . 7.2 7.12 . 7.2 6.1 50 mg 500 mg 0.1 mg . 5 mg 15 mg . . 7.3 . 7.4 . 30 ( ). 7.5 , . 7.6 . 7.7 . 7.8 . 7.9 . 7.10 , . 7.11 . 7.12 (
6、 %) . 8 8.1 (0.05 mol/dm3) KS M ISO 24698 2:2010R 5 A( %) . mVVc )(61.1021SA= cS: (mol/dm3) V1: (cm3) V2: (cm3) m : (g) . 8.2 (0.05 mol/dm3) A . mVVc )(306.521HA= cH: (mol/dm3) 1V : (cm3) 2V : (cm3) m : (g) . 9 NBR 2006 ( B ). 10 . a) b) c) d) e) f) KS M ISO 24698 2:2010R 6 A ( ) (Kjeldahl) A.1 ( )
7、. , . 5.1.2 , NBR . A.2 A, QDS-10M KJEL-AUTO DTP-3S (Nakayama Rika Seisakusho Inc) . B, Buchi K-435 , B-324 (Shibata Scientific Technology Ltd.) COM-1500 (Hiranuma Sangyo Co., Ltd) . . ISO . A.3 A.1 . . a) ( ) . b) K2SO4 CuSO4 5H2O 9: 1 8: 1 . . c) . d) ( ) . e) . f) . g) A , 0.1 g, 0.05 g 100 cm3 .
8、 B , 0.1 g 20 cm3 100 cm3 . h) A , , 48 . KS M ISO 24698 2:2010R 7 A.1 A B 75 mg 100 mg K2SO4CuSO4 5H2O 9.0 g 1.0 g 2.4 g 0.3 g 7.3 15 cm34 cm3 a450 750 7.4 ( ) 140 70 7.5 50 cm3 20 cm3 60 cm330 cm3 15 cm340 cm37.7 ( ) 270 (105 cm3) 360 (125 cm3) 3 % 4 % 25 cm320 cm3 7.8 0.25 cm30.01 cm3 0.05 mol/dm
9、3 0.05 mol/dm3 7.9 a .KS M ISO 24698 2:2010R 8 B ( ) B.1 (ITP) NBR 2006 . ISO/TR 92721) 1 . 5 ITP 2 (NBR ) . . 3 . 3 4 . ITP . B.2 B.1 ( ) . ISO/TR 9272 . : r B.1 . 2 , , . : R B.1 . 2 , , . 1) ISO/TR 9272, Rubber and rubber products Determination of precision for test method standards KS M ISO 2469
10、8 2:2010R 9 B.1 srr (r) sRR (R) aNBR 1 25.33 0.112 0.316 1.249 0.240 0.679 2.680 4 NBR 2 33.35 0.082 0.231 0.693 0.413 1.168 3.502 5 (pooled values) 0.098 0.277 1.010 0.338 0.955 3.118 . sr r , (r) , %( ) sR R , (R) , %( ) a ( 1) ITP -(NBR) 2:(Kjeldahl) 153787 1 92 3(13) (02)26240114 (02)262401489 http:/ Korean Agency for Technology and Standards http:/www.kats.go.kr KS M ISO 24698 2:2010RKSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Rubber, raw Determination of bound acrylonitrile content in acrylonitrile-butadiene rubber(NBR) Part 2: Kjeldahl method ICS 83.040.10