KS I ISO 6059-2007 Water quality-Determination of the sum of calcium and magnesium-EDTA titrimetric method《水质 钙和镁总量的测定 EDTA滴定法》.pdf

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1、 KS I ISO 6059 KSKSKSKS SKSKSKS KSKSKS SKSKS KSKS SKS KS EDTA KS I ISO 6059 :2007 (2012 ) 2007 6 29 http:/www.kats.go.krKS I ISO 6059:2007 : ( ) ( ) ( ) : (http:/www.standard.go.kr) : : 1997 6 3 : 2007 6 29 :2012 12 27 : 20120787 : (ISO/TC147) ( 02-509-7270) (http:/www.kats.go.kr). 10 5 , . KS I ISO

2、 6059:2007 ii 1 1 2 1 3 .1 4 .1 4.1 1 4.2 EDTA( ).2 4.3 .2 4.4 11: 2 5 .3 6 3 7 3 7.1 .3 7.2 .3 8 4 9 4 10 .4 11 4 12 5 A 6 A.1 .6 A.2 6 A.3 .6 i KS I ISO 6059:2007 ii 1984 1 ISO 6059 Water quality Determination of the sum of calcium and magnesiumEDTA titrimetric method . KS I ISO 6059:2007 (2012 )

3、EDTA Water quality Determination of the sum of calcium and magnesium EDTA titrimetric method 1 , , (EDTA) . , 0.05 mmol/L . 2 . . KS M ISO 56671, ( ) KS M ISO 56672, 2: KS M 9112, ( ) 3 pH 10 EDTA 2Na . 11 . EDTA , , . . , . 4 . 4.1 (NH 4 Cl) 67.5 g 570 mL25 %(m/m); 20 = 0.910 g/mL EDTA KS I ISO 605

4、9:2007 2Na (C 10 H 12 N 2 O 8 Na 2 Mg) 5.0 g 1 000 mL . ( ) . 10 mL 100 mL . pH 100.1 . 4.2 EDTA( ) c(Na 2 EDTA) 10 mmol/L 4.2.1 EDTA 2Na(2)(C 10 H 14 N 2 O 8 Na 2 2H 2 O) 80 2 , 3.725 g 1 000 mL . EDTA , . 4.2.2 7. 4.2.1 (4.3) . 20.0 mL 50 mL . 4.2.3 EDTA c 1 (mmol/L) . 2 1 2 1V V c c c 2 : (mmol/L

5、) V 1 : (mL) V 2 : EDTA (mL) 4.3 c(CaCO 3 ) = 10 mmol/L 150 2 . (500 mL) 1.001 g , 4 mol/L . . 200 mL , . 3 mol/L . 1 (1 000 mL) . 1 mL 0.400 8 mg(0.01 mmol) . . 4.4 11: 11sodium salt of 1-(1-hydroxy-2-naphthylazo)-6-nitro-2-naphthol-4-sulfonic acid(C 20 H 12 N 3 2 KS I ISO 6059:2007 O 7 SNa) 0.5 g

6、HOCH 2 CH 2 ) 3 N 100 mL . 25 mL . (4-anilido-azobenzene-sulfonic acid sodium salt) 0.17 g . . 5 . a) 25 mL, 0.05 mL A , . , , . mL A B mm mm mm 0.05 0.1 0.03 0.05 500 300 600 450 820 620 6 KS M ISO 56671, KS M ISO 56672 KS M 9112 . 7 7.1 0.45 m , . . 3.6 mmol/L F . 2 mol/L . . 7.2 7.2.1 50.0 mL (2

7、50 mL) , (4.1) 4 mL 11 (4.4) 3 . , pH 10.00.1 . (5.) EDTA (4.2) . . EDTA . , EDTA . 3 KS I ISO 6059:2007 7.2.2 . 50.0 mL . (7.2.1) 0.5 mL EDTA (4.1) 4 mL 11 (4.4) 3 . EDTA . 7.2.3 EDTA 4.5 mL , (4.1) . EDTA 20 mL . 50 mL . 8 c CaMg (mmol/L) . 0 3 1 Mg CaV V c c c 1 :EDTA (mmol/L) V 0 : (mL) ( 50 mL)

8、 V 3 : EDTA (mL)(7.2.2 ) F . . 9 2 EDTA 0.04 mmol/L. 10 (NaCN) . . NaCN . , , , , , , , , . pH , . 10 mg/L 250 mg . , , . , . . 11 . a) b) c) 0.02 mmol/L (mmol/L) 4 KS I ISO 6059:2007 d) ( ) e) 12 1 American Public Health Association, American Waterworks Association, Water Pollution Control Federati

9、on, Joint Editorial Board. “Standard Methods for the Examination of Water and Wastewater,” 15th ed., Denver, Colorado, USA, 1980, p. 185. 2 Schwarzenbach, G., and Flaschka, H., “Complexometric Titrations,” 2nd ed., New York, Barnes & Noble, 1969. 5 KS I ISO 6059:2007 A () () . A.1 A.1.1 A.1.2 , . A.

10、2 A.2.1 (German hardness degrees) 1 (1 DH) 10 mg/L 0.178 mmol/L . . A.2.2 (UK hardness degrees) 1 (1 Clark) 1 grain/imperial gallon . 14.3 mg/L 0.143 mmol/L . A.2.3 (French hardness dsgrees) 1 10 mg/L 0.1 mmol/L . A.2.4 (USA hardness degrees) (ppm) mg/L . 1 mg/L 0.01 mmol/L . A.3 . 6 KS I ISO 6059:2

11、007 7 mmol/L DH Clark degree F ppm mmol/L 1 5.61 7.02 10 100 DH 0.178 1 1.25 1.78 17.8 Clark 0.143 0.80 1 1.43 14.3 degree F 0.1 0.56 0.70 1 10 ppm 0.01 0.056 0.070 0.1 1 EDTA 153787 1 145 3(16) (02)26240114 (02)26240148 http:/ KS I ISO 6059 :2007KSKSKS SKSKS KSKS SKS KS SKS KSKS SKSKS KSKSKS Water quality Determination of the sum of calcium and magnesium EDTA titrimetric method ICS 13.060.50 Korean Agency for Technology and Standards http:/www.kats.go.kr

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