1、 KSKSKSKSKSKSKSK KSKSKS KSKSK KSKS KSK KS KS I ISO 6978 2 2: / KS I ISO 6978 2:2009 2009 10 2 http:/www.kats.go.krKS I ISO 6978 2:2009 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : :2004 6 30 :2009 10 2 2009-0592 : : ( 02-509-7266) (http:/www.kats.go.kr). 10 5 , . KS I ISO 6978 2:2009 i .1 1 1 2 1 3
2、.2 4 2 5 2 6 .9 7 .11 7.1 .11 7.2 .11 7.3 .11 8 11 8.1 .11 8.2 .12 8.3 ( 1 )12 8.4 ( 4 )13 8.5 .14 9 14 9.1 ( ) 15 9.2 AAS AFS 15 9.3 .15 9.4 .15 10 16 11 18 12 .18 19 KS I ISO 6978 2:2009 2: / Natural gas Determination of mercury Part 2: Sampling of mercury by amalgamation on gold/platinum alloy 20
3、03 1 ISO 6978 2, Natural gas Determination of mercury Part 2: Sampling of mercury by amalgamation on gold/platinum alloy . , . . . 1 / (Au/Pt) 1)( ) , PNG(Pipeline quality Natural Gas) . . 0.01 g/m3 100 g/m3 . (8 MPa ) 0.001 g/m3 1 g/m3 . 253.7 nm ( ) . KS I ISO 6978 1 40 MPa 0.1 g/m3 5 000 g/m3 . 2
4、 . . ( ) . KS I ISO 10715, KS I ISO 14532, (GUM), BIPM, IEC, IFCC, ISO, IUPAC, IUPAP, OIML 1) , , .KS I ISO 6978 2:2009 2 3 KS I ISO 14532 . 4 10 . / . / / . 700 . / ( ). 800 AAS AFS 253.7 mm . 0.01 g/m3 100g/m3 , 0.001 g/m3 1 g/m3 . / . , / . , 273.15 K 1 013.25 hPa (m3) . . 5 . ( , ) . 1 % . 5.1 (
5、 1 ) 5.1.1 . 5.1.1.1 5.1.1.2 ( ) 5.1.1.3 3 . 5.1.1.4 KS I ISO 6978 2:2009 3 100 ( 2 ), / ( 3 ) ( 2 mm) ( ) ( 1 ) . 5.1.1.5 (3 ) 50 L/min 5 L/min 5.1.1.6 5 L/min , , . a) b) 0 40 . 5.1.1.7 . 1 7 3 2 8 3 9 4 10 5 11 6 12 1 KS I ISO 6978 2:2009 4 : mm 1 2 ( ) 3 2 ( ) : mm 1 / (350 Au/150 Pt ) 2 3 O 3 K
6、S I ISO 6978 2:2009 5 5.1.2 ( 4 ) . 5.1.2.1 0 MPa 25 MPa . 5.1.2.2 5.1.2.3 5.1.2.4 ( ) 5.1.2.5 3 5.1.2.6 ( ) 10 MPa 4 kPa , . 5.1.2.7 0 MPa 10 MPa . 5.1.2.8 . 5.1.2.9 . 5.1.2.10 , 50 L/min . a) b) 0 40 . 5.1.2.11 . 5.1.2.12 ( 4 ) . KS I ISO 6978 2:2009 6 KS I ISO 6978 1 . . 5.1.2.13 , . 5.2 ( 5 ) .
7、5.2.1 . / (12020) mm . . 2 800 . 5.2.2 ( 3 ) 5.2.3 ( 5 ) / . 5.2.4 0.5 L/min 2 L/min . 5.2.5 1 L/min 5 L/min . 5.2.6 (PVA) 3 mm 5.3 (AAS) (AFS) AAS AFS , 0.05 ng , (PVA) . (PTFE) (PA) . . 5.4 ( 6 ) (6.6) , 5.4.1 5.4.7 . KS I ISO 6978 2:2009 7 5.4.1 500 mL 5.4.2 (PTFE) 5.4.3 PVA 5.4.4 5.4.5 10 40 0.1
8、 . 5.4.6 5.4.7 PTFE , 0.5 mL 5 mL . 5.5 ( 3 ) KS I ISO 6978 2:2009 8 : mm 1 (0 MPa 25 MPa) 13 0.4 m 2 14 M20 3 15 4 16 O 5 10 MPa 17 M20( ) 6 3 18 7 19 8 20 9 (0 MPa 10 MPa) 21 10 22 11 4 kPa 23 12 24 4 KS I ISO 6978 2:2009 9 : mm 1 6 2 7 3 8 4 PVA 9 5 10 a 5 6 . 6.1 / 80 % 90 % (Au) (Pt) / , 0.1 mm
9、, 10 m( ) . / 10 m2/g 3 % ( ) . 6.2 99.9 % KS I ISO 6978 2:2009 10 . . . . . 6.3 6.4 , / 6.5 . 6.6 ( 6 ) (6.2) 20 g (5.4.2) . (5.4.4) PVA (5.4.3) ( 6 ). (5.4.4) . (5.4.5) ( 2 ). (5.4.6) . (5.4.7) . 1 . 1 PVA 2 3 PTFE 4 6 KS I ISO 6978 2:2009 11 7 7.1 / (6.1) 10 m , ( 3 ) . (155) mm , 3 . (805) mm, (
10、605) mm . (101) mm . 7.2 800 . , 7.3 AAS AFS . 0.1 ng , 0.1 ng . . . 7.3 , . , . AAS AFS , AAS AFS . 10 ng (6.6 ) . AAS AFS 0.1 ng , 800 10 20 / . . 7.2 . 8 KS I ISO 10715 . . 8.1 . . . KS I ISO 6978 2:2009 12 a) : . b) : . . . , . , . (PVA) . (PTFE) (PA) . ( , ) . 1 % . 8.2 KS I ISO 10715 . 8.1 KS
11、I ISO 10715 . ( ) . (- ) . . . ( ) . . 8.3 ( 1 ) . ( ) (5.1.1) . , . . 2 L/min ( , ) . 10 . 10 . ( 1 ) . , 10 ( 4 K/MPa .). (5.1.1.4 1) . 20 L/min . 3 (5.1.1.3 1) 2 L/min . 1 , . KS I ISO 6978 2:2009 13 AAS AFS ( ) AAS AFS . ( 5 L) AAS AFS . . 3 (5.1.1.3) , 10 . 3 . (Vi) 3 . (pG) (tG) , . 3 . (Vf) ,
12、 7.2 . (pa) . . , ( ) ( ) . 8.5 . ( / ), . 25 % , / . 10 % , / . , 5 ng Hg (6.6) 7.3 . . 7.2 . , . . 8.4 ( 4 ) ( ) . . . / . ( 4 .) . - , . ( 4 ) ( ) . 10 . 4 KS I ISO 6978 2:2009 14 . (7.1 / ) O . . . ( 4 2 ) , ( 4 .) (0 Mpa 25 Mpa) . ( 4 4 ) , ( 4 2 ) ( 4 3 ) . 3 ( 4 6 ) . ( 4 10 ) , ( 4 4 ) . ( 4 10 ) ( 4 12 ) 20 L/min . 1 , 3 ( 4 6 ) . (Vi) . tG pG , . , 3 ( 4 6 ) (Vf) . ( 4 4 ) . 7.2 . (p a) . . AAS AFS , AAS AFS . AAS . ( 20 L) , AAS AFS . , . , ( ) ( ) . 8.5 . ( / ) . 25 % / . 10 % / . , . . 8.5 , ( ) 5 mL 5 mL . , ( , 5 ) . 20 3 . 7.2 . 7.3 . 9 . . KS I ISO 6978 2:2009 15