KS D ISO 4491-2-2008 Metallic powders－Determination of oxygen content by reduction methods－Part 2：Loss of mass on hydrogen reduction (hydrogen loss)《金属粉末 还原法测定氧含量 第2部分 还原时氢的质量损失(氢损.pdf

1、 KSKSKSKS KSKSKSK KSKSKS KSKSK KSKS KSK KS KS D ISO 4491 2 2 ： ( )KS D ISO 4491 2:2008(2013 ) 2008 12 26 http:/www.kats.go.krKS D ISO 4491 2:2008 : ( ) ( ) ( ) ( ) : (http:/www.standard.go.kr) ： ： 2003 10 30 ： 2008 12 26 ： 2013 10 31 ： 2013 0584 ： ( 02 509 7274) (http:/www.kats.go.kr). 10 5 , . KS D

2、 ISO 4491 2:2008 (2013 ) 2 ： ( ) Metallic powders Determination of oxygen content by reduction methods Part 2： Loss of mass on hydrogen reduction (hydrogen loss) 1997 2 ISO 4491 2, Metallic powders Determination of oxygen content by reduction methods Part 2： Loss of mass on hydrogen reduction(hydrog

3、en loss) , . 1 KS D ISO 4491 2 . . ( A KS D ISO 4491 1 ). 1(6.1 ) . . , , ( ) ( A ). . KS D ISO 4491 1 . 2 . . ( ) . KS D ISO 4491 1, 1 ： KS D ISO 4491 2:2008 2 3 3.1 0.005 %(m/m) , 45 3.2 0.005 %(m/m) , 45 (6.3 ) 4 1 . 4.1 0.1 mg 4.2 1 1 (4.5) . . 4.3 ( ) . 25 40 mm, (furnace) 200 mm . 1 . 4.4 5 /

4、- . 1 . 4.5 . . 75 mm, 12 mm 3 mm . . . 4.6 . KS D ISO 4491 2:2008 3 ： mm 1 5 5.1 (as-received condition) . 5.2 2 . (4.5) (4.3) (4.4) (4.2) KS D ISO 4491 2:2008 4 5.3 4.5 6.2 5 g . 6 2 . 6.1 1 (4.3) (4.2) . 1 a b 75015 30 42510 30 55010 30 85015 30 b 60010 10 b 60010 10 1 10020 60 1 00020 60 1 00020

5、 60 1 00020 60 1 10020 60 1 15020 60 a . . b . A.6 6.2 (4.5) 0.1 mg . 3 mm . 0.1 mg . 6.3 1 25 mm/s (3.2) . . . 1 . ( .) . ( ) . ( ) (6.5 6.6 ). 6.4 (3.1) . 25 mm/s . 25 mm 50 L/h , 40 mm KS D ISO 4491 2:2008 5 110 L/h . 1 . . 6.5 . 2 3 . 6.6 35 , . 6.7 0.1 mg . 7 7.1 HL . HL1232mmmm- 100 m1 ： (4.5)

6、 (g) m2 ： (g) m3 ： (g) 7.2 . 2 . 2 %(m/m) % % 0.2 0.2 0.5 0.5 1.0 1.0 0.01 0.01 0.01 0.01 0.01 %( ) 5 % 5 % 5 % 0.01 0.02 0.05 0.1 8 . a) b) c) d) , e) KS D ISO 4491 2:2008 6 A ( ) A.1 . . . A.2 SiO2, Al2O3, MgO, CaO, BeO, TiO2 . A.3 / . A.4 . . A.5 . . , , . A.6 . , , . A.7 . Cr2O3, MnO . A.8 / . (

7、 , ). KS D ISO 4491 2:2008 7 KS D ISO 4491 2:2008 . 1 . (KS) (ISO) , . 2 1997 ISO 4491 2, Metallic powders Determination of oxygen content by reduction methods Part 2： Loss of mass on hydrogen reduction(hydrogen loss) , “ 2 ： ( )” . SI . 3 . . . (2 000 3 000 ) . . . 2 ： ( ) 135 513 701 7 (02)6009 4114 (02)6009 4887 8 http:/ KS D ISO 4491 2:2008 KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Metallic powdersDetermination of oxygen content by reduction methodsPart 2：Loss of mass on hydrogen reduction(hydrogen loss) ICS 77.160 Korean Agency for Technology and Standards http:/www.kats.go.kr