METHOD AND APPARATUS FOR DETERMINING CARBONATE/SULFIDE CONCENTRATION - Patent 0143844

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EP 0 143 844 A1

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(43)	Date of publication:
	12.06.1985 Bulletin 1985/24

(21)	Application number: 84902259.0

(22)	Date of filing: 16.05.1984

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International Patent Classification (IPC):

D21C 11/ 00^{( . )}
G01N 30/ 06^{( . )}
G01N 33/ 34^{( . )}

G01N 30/ 04^{( . )}
G01N 31/ 00^{( . )}

(86)	International application number:
	PCT/US1984/000740

(87)	International publication number:
	WO 1984/004597 (22.11.1984 Gazette 1984/27)

(84)	Designated Contracting States:
	FR SE

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Priority:

18.05.1983 US 19830495863

(71)	Applicant: WEYERHAEUSER COMPANY
	Tacoma, WA 98477 (US)

(72)	Inventors:
	SPEAKS, Jerry, Robert Tacoma, WA 98422 (US) WARRICK, Ronald, Paul Auburn, WA 98002 (US) ROZWOD, Thomas, Gordon Tacoma, WA 98422 (US)

(74)	Representative: Brown, David Alan, et al
	Mathys & Squire 100 Grays Inn Road London WC1X 8AL London WC1X 8AL (GB)

(54)	METHOD AND APPARATUS FOR DETERMINING CARBONATE/SULFIDE CONCENTRATION