BS-6829-2.3-1989 ISO-6121-1988.pdf
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1、BRITISH STANDARD BS 6829-2.3: 1989 ISO 6121:1988 Analysis of surface active agents (raw materials) Part 2: Alkane sulphonates Section 2.3 Method for determination of alkane monosulphonates content ISO title: Surface active agents Technical alkane sulfonates Determination of alkane monosulfonates con
2、tent by direct two-phase titration UDC 661.185.1:543.2 112 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6829-2.3:1989 This British Standard, having been prepared under the direction of the Chemicals Standards Committee, was published u
3、nder the authority of the Board of BSI and comes into effect on 31 March 1989 BSI 12-1999 The following BSI references relate to the work on this standard: Committee reference CIC/34 Draft for comment 77/54031 DC ISBN 0 580 17131 0 Committees responsible for this British Standard The preparation of
4、this British Standard was entrusted by the Chemicals Standards Committee (CIC/-) to Technical Committee CIC/34, upon which the following bodies were represented: Chemical Industries Association Consumer Policy Committee of BSI Department of the Environment Department of Trade and Industry (Laborator
5、y of the Government Chemist) London Regional Transport Ministry of Defence Royal Society of Chemistry Soap and Detergent Industry Association Society of Dyers and Colourists Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27
6、:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6829-2.3:1989 BSI 12-1999i Contents Page Committees responsibleInside front cover National forewordii Introduction1 1Scope1 2Normative references1 3Definition1 4Principle1 5Reagents1 6Apparatus3 7Sampling3 8Procedure3 9Expression of results3 10Test r
7、eport3 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6829-2.3:1989 ii BSI 12-1999 National foreword This Section of BS 6829 has been prepared under the direction of the Chemicals Standards Commi
8、ttee. It is identical with IS0 6121:1988 “Surface active agents Technical alkane sulfonates Determination of alkane monosulphonates content by direct two-phase titration”, published by the International Organization for Standardization (ISO). Terminology and conventions. The text of the Internationa
9、l Standard has been approved as suitable for publication as a British Standard without deviation. Some terminology and certain conventions are not identical with those used in British Standards; attention is drawn especially to the following. The comma has been used as a decimal marker. In British S
10、tandard it is current practice to use a full point on the baseline as the decimal marker. The symbol “l” has been used to denote litre (and in its submultiples). In British Standards it is current practice to use the symbol “L”. In British Standards it is current practice to use the spelling “sulphu
11、r”, etc., instead of “sulfur”, etc. Wherever the words “International Standard” appear, referring to this standard, they should be read as “Section of BS 6829”. Related British Standards for ISO 385-1:1984 and ISO 648:1977 are BS 846:1985 “Specification for burettes” and BS 1583:1986 “Specification
12、for one-mark pipettes”, respectively. The Technical Committee has reviewed the provisions of these two International Standards and, as the relevant requirements are identical with those of the related British Standards, has decided that they are acceptable for the purposes of this standard. As the r
13、eference to ISO 893 in the “Introduction” is supplied for information only, the lack of a corresponding British Standard does not affect the validity of this Section of BS 6829. Additional information. With reference to clause 5, water complying with grade 3 of BS 3978 “Specification for water for l
14、aboratory use” is suitable. Cross-references International StandardCorresponding British Standard ISO 607:1980BS 3762 Analysis of formulated detergents Part 1:1983 Methods of sample division (Identical) ISO 1042:1983BS 1792:1982 Specification for one-mark volumetric flasks (Identical) ISO 2271:1972B
15、S 3762 Analysis of formulated detergents Part 3 Quantitative test methods Section 3.1:1983 Method for determination of anionic-active matter content (Identical) ISO 6845:1982BS 6829 Analysis of surface active agents (raw materials) Part 2 Alkane sulphonates Section 2.2:1987 Method for determination
16、of mean relative molecular mass of alkane monosulphonates (Identical) Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6829-2.3:1989 BSI 12-1999iii This Section describes a method of test only and should not be used or quoted as a specific
17、ation defining limits of purity. Reference to this Section should indicate that the method of test used is in accordance with BS 6829-2.3. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct applicati
18、on. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i to iv, pages 1 to 4, an inside back cover and a back cover. This standard has been updated (see copyright date) and
19、 may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27:27 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:27:27 GMT+00:0
20、0 2006, Uncontrolled Copy, (c) BSI BS 6829-2.3:1989 BSI 12-19991 Introduction The analytical method based on selective solvent extraction which has been applied successfully for the analysis of technical sodium alkane sulfonates in ISO 893 leads to only approximate results during the analytical exam
21、ination of the products of sulfochlorination and sulfoxidation of paraffins, owing to the presence of alkane disulfonates, in addition to alkane monosulfonates, formed during the synthesis. However, because of the different properties and applications of mixtures with different relative proportions
22、of mono- and disulfonates, the knowledge of the contents of such mixtures is of paramount importance. Therefore, it seemed advisable to establish this method to allow the determination specifically of the alkane monosulfonates content. The method is applicable to all synthetic alkane sulfonates and
23、minimizes interference due to disulfonates. 1 Scope This International Standard specifies a method for the determination of the alkane monosulfonates content of technical alkane sulfonates containing small quantities of paraffins. It is applicable to all alkali metal salts of the products of sulfoch
24、lorination and sulfoxidation of paraffins. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. At the time of publication, the editions indicated were valid. All standards are subject to revisi
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