KS I ISO 6975-2006 Natural gas-Extended analysis-Gas chromatographic method《天然气 延伸分析 气相色谱法》.pdf

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1、 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS 2006 9 30 http:/www.kats.go.krKS I ISO 6975 KS I ISO 6975: 2006 (2011 )I ISO 6975: 2006 : ( ) ( ) KIST ( ) : (http:/www.standard.go.kr) : : 2001 12 18 : 2006 9 30 : 2011 12 26 2011-0622 : : ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . ICS 75.060 KS I ISO

2、 6975: 2006(2011 ) Natural gasExtended analysis Gas chromatographic method 1997 2 ISO 6975 Natural gas Extended analysis Gas chromatographic method , . 1. . C1C5 C6 , . : : : : : : : : : 0.001 0.001 0.001 0.001 0.001 0.001 50 0.02 0.001 %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n)

3、0.50.50.50.54040100155%(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) %(n/n) : 10 6(n/n) , 1102kPa 7103kPa . ( , , ) . C6 . “ ” , . . , . I ISO 6975: 2006 2 / . ( ) , , (ISO 6570 1 KS M ISO 10715 ). C12 . (well head) C16 . 2. . . , . IEC ISO . KS A ISO 5725 1 ( ) 1: KS M ISO 6142 KS M ISO 61

4、43 KS M ISO 6326 1 1: KS M ISO 6326 2 2: KS M ISO 6326 3 3: , KS M ISO 6326 4 4: , KS M ISO 6326 5 5: KS M ISO 6974 1 1: KS M ISO 6974 2 2: KS M ISO 6974 3 3: 2 , , , , , C8 KS M ISO 6974 4 4: 2 , , C1C5, C6 KS M ISO 6974 5 5: 3 , , C1C5, C6 KS M ISO 10715 KS M ISO 14111 ISO 6570 1: 1983 1: 3. . I I

5、SO 6975: 2006 3 3.1 , 2 ( 1 ). RAB . RAB=2)A()B()(A)(BRRwwdd+ dR(A) dR(B): A B w(A) w(B): 3.2 n- , , 3.3 , , , 3.4 n- 3.5 ( , , ) 3.6 ( ) 1 3.7 3.8 (FID ) Ki . n- , C7 ( , , , ) . Ki= 571.074= 3.9 . . . . 4. I ISO 6975: 2006 4 . TCD . FID . . FID . FID . . (KS M ISO 6974 ). . i Rli . Rli= 100xxxxitt

6、tt100)1(+ ti: i tx: n- x t(x+ 1): n- (x 1) 3( D ) . C . . (Rl) . 5. 5.1 5.1.1 1 , , . / TCD / FID, 1 . . 5.1.2 5.1.2.1 (CRMs) . CRMs KS M ISO 6142 (PSMs) (KS M ISO 6143 ). CRM PSM (KS M ISO 14111 ). . 5.1.2.2 (WRMs) . WRMs KS M ISO 6142 , CRMs (KS M ISO 6143 ). WRM PSM (KS M ISO 14111 ). , WRM . , ,

7、 , n- I ISO 6975: 2006 5 WRM . , , , WRM . . , . , WRM . WRM 1 . 1 WRM % (n/n) WRM ( %) 0.1 100 0.11 50 110 10 1050 5 50100 3 5.1.2.3 . KS M ISO 6143 KS M ISO 6142 . () () . 5.2 . xmc: , 1 , xbc: xoc: ( KS M ISO 6326 ) % (n/n) 100 . xmc xbc xoc= 100 5.3 5.3.1 2- 2 . 2- n- 4 . , 4 . , 1.5 . 5.3.2 ( C

8、3C5 ) . . 1 500: 1 . , 3 %(n/n) . 2- n- 4 . I ISO 6975: 2006 6 n- n- 15 . n- n- 30 . , . . 5.3.3 1.5 . 6. 6.1 . . 10 K . . kPa 0.005 K . 6.2 20 . . . . 7. 7.1 C4 C5 . 1 FID C4 C5 . . 1 %(n/n) . 1 . 7.1.1 ( ) . 7 . 7 5.1.2.1 7 . A . 1. 7 4 . 3 . 2. , . , . Rc, st=cstcppR Rc,st: Rc: pc: kPa I ISO 6975

9、: 2006 7 pst: (101.325 kPa) 7.1.2 1 ( ) 1 . 7.2 5.1.2.2 WRM . 6.2 WRM 2 . 7.3 . 7.3 . . 5.1.2.3 , . . . ( 10 ) . . . , 68.3 % 1 SD( ) , 95.4 % 2 SD , 99.7 % 3 SD . , 1 000 3 3 SD . . . 20 1 2 SD . . 7.4 y 2 SD 3 SD . x . , x . , . 2 SD 3 SD . 2 2.5 % . . 2 , . ( ) ( ) 3 . , . 3 SD . I ISO 6975: 2006

10、 8 4 . 58 9 13 . 3 SD . . 25 50 . . . 2 3 I ISO 6975: 2006 9 4 8. 8.1 8.1.1 xis(%(n/n) . xis=iwsiiwsiiwsiiwsiiisiisiisixdRcRbRadRcRbRa+2323 (1) ai,bi, ci, di: i Ris: i Riws: WRS i xiws: WRS i % (n/n) C4 C5 1 (1) , ai, bi, di 0 ci 1 . 8.1.2 xis(% (n/n) . xis=bcwsbcbcwsbc2bcwsbc3bcwsbcdcsbc2sbc3sbcbcx

11、dRcRbRadRcRbRaKiiii+ (2) abc,bbc, cbc, dbc: Kbci: i Ris: i Rbcws: WRS xbcws: WRS i % (n/n) , abc, bbc, dbc 0 cbc 1 . I ISO 6975: 2006 10 8.1.3 xis%(n/n) . xis=wswssiiixRR (3) Ris: i Riws: WRS i xiws: WRS i % (n/n) 8.1.4 ( , , ) , , xoc%(n/n) . xoc=mjjx1oc xjoc: j %(n/n) m: 8.2 99 %(n/n) 101 %(n/n) 1

12、00 % . . . )100(ocs1ssxxxxkiiii= ix : i %(n/n) xis: i %(n/n) xocs: %(n/n) k: 9. KS A ISO 5725 1 . 9.1 KS A ISO 5725 1 12 . log10r = 0.680 02log10x 0.159 95 log10R = 0.582 83log10x 0.751 622 2 r: R: X: %(n/n) 9.2 KS A ISO 5725 1 6 . ln r = 0.680ln x 4.238 ln R = 0.625ln x 3.022 r: %(n/n) R: %(n/n) x: %(n/n) 10. . I ISO 6975: 2006 11 a) b) , c) ( ) d) e) , f) g) ( ) I ISO 6975: 2006 12 A() A.1 . . ( ) . . 7 . . . . Xi= bi, 1Ri( ) Xi= bi, 0 bi, 1Ri( ) Xi= bi, 0 bi, 1Ri22 , iiRb ( ) Xi= bi, 0 bi, 1Ri+22 , iiRb 33 , iiRb ( ) Xi: CRM i Ri: i

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