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ISO 760

Determination of water; Karl Fischer method (General method)

Số trang: 12
Ngày phát hành: 1978-12-00

Liên hệ
Two methods of titration depending on whether the end point is detected visually or electrometrically are specified. The visual method is only applicable to colourless solutions but can be used when no electrometric apparatus is available. The electrometric method, whether by direct titration or back-titration, is the more accurate one and for this reason recommended. The principle of the test consists in reaction of any water present in a test portion with a solution of iodine and sulphur dioxide in a pyridine/methanol mixture (Karl Fischer reagent), previously standardized by titration with an exactly known mass of water.
Số hiệu tiêu chuẩn
ISO 760
Tên tiêu chuẩn
Determination of water; Karl Fischer method (General method)
Ngày phát hành
1978-12-00
Trạng thái
Có hiệu lực
Tiêu chuẩn tương đương
BS 684-2-2.1 (1976-10-29), NEQ * BS 2511 (1970-04-30), NEQ * GB/T 6283 (2008), NEQ * GB/T 10513 (1989), IDT * prEN ISO 760 (1995-04), IDT * NF T20-052 (1968-10-01), IDT * T76-007, IDT * JIS K 0068 (1992-05-01), NEQ * JIS K 0068 (2001-04-20), NEQ * JIS K 0113 (1997-09-20), MOD * JIS K 0113 (2005-10-20), MOD * OENORM ISO 760 (1994-06-01), IDT * PN-ISO 760 (2001-08-13), IDT * SS-ISO 760 (1993-11-30), IDT * UNE 55525 (1990-03-24), IDT * TS 1115 (1972-03-01), IDT * ELOT 319 (1982), IDT * NBN T 02-201 (1979), IDT * NP-3275 (1986), MOD * NS 9003 (1981), MOD * STN ISO 760 (2003-07-01), IDT * CSN ISO 760 (1998-10-01), IDT
Tiêu chuẩn liên quan
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Lịch sử ban hành
ISO 760 (1978-12)
Từ khóa
Chemical analysis and testing * Connections * Determination of content * Electro-analytical methods * Karl Fischer reagent * Volumetric analysis * Water * Joints * Junctions * Chemical * Compounds
Mục phân loại
71.040.40. Phân tích hóa học
Số trang
12

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