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1、BRITISH STANDARD BS 6075-0: 1981 Methods of Sampling and test for sodium hydroxide for industrial use Part 0: General introduction UDC 661.322.1:546.33 36:543.062:543.05 Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0:1981 This Bri
2、tish Standard, having been prepared under the direction of the Chemicals Standards Committee, was published under the authority of the Executive Board and comes into effect on 27 February 1981 BSI 11-1999 The following BSI reference relates to the work on this standard: Committee reference CIC/22 IS
3、BN 0 580 12050 3 Cooperating organizations The Chemicals Standards Committee, under whose direction this British Standard was prepared, consists of representatives from the following: Association of Fatty Acid Distillers British Tar Industry Association Chemical Industries Association* Chemical Soci
4、ety (Analytical Division) Consumer Standards Advisory Committee of BSI Department of Health and Social Security Department of Industry (Laboratory of the Government Chemist) Fertiliser Manufacturers Association Ltd. Hydrocarbon Solvents Association Ministry of Agriculture, Fisheries and Food Ministr
5、y of Defence* National Sulphuric Acid Association Paintmakers Association of Great Britain Ltd. Royal Institute of Public Health and Hygiene Soap and Detergent Industry Association* Standardization of Tar Products Tests Committee The organizations marked with an asterisk in the above list, together
6、with the following, were directly represented on the Technical Committee entrusted with the preparation of this British Standard: Asbestos Cement Manufacturers Association Limited British Man-made Fibres Federation British Textile Employers Association Fabric Care Research Association Society of Gla
7、ss Technology Amendments issued since publication Amd. No.Date of issueComments Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0:1981 BSI 11-1999i Contents Page Cooperating organizationsInside front cover Forewordii Table 1 Methods
8、of sampling and test for sodium hydroxide: relationship between BS and international series1 Publications referred toInside back cover Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0:1981 ii BSI 11-1999 Foreword This British Standa
9、rd has been prepared under the direction of the Chemicals Standards Committee and provides, in separate Parts, a comprehensive series of test methods for sodium hydroxide for industrial use, both in solid form and in aqueous solution. Although applicable to the material in general, it includes all t
10、he test methods required to assess compliance with the requirements of BS 4130. The latter specification is in the process of being revised and, in accordance with current BSI policy, will no longer include test methods which in the 1967 edition were given in appendices. In preparing this standard,
11、the opportunity has been taken to implement, without alteration, the majority of the International Standards describing test methods for sodium hydroxide. These have been prepared, with the active participation of the UK, by Subcommittee 5, of Technical Committee 47, Chemistry, of the International
12、Organization for Standardization (ISO). Although all such Parts are applicable to the material in general, most of them also relate to the requirements of BS 4130 and replace the corresponding methods appended to the previous edition of that standard. There are, however, requirements in the specific
13、ation for the contents of copper, of manganese and of matter insoluble in water, for which there are no corresponding International Standards. The relevant test method from BS 4130:1967 for the determination of copper content has therefore been included, technically unchanged, as Part 12 of this sta
14、ndard. It was intended similarly to publish the determination of manganese content as Part 13 but it was subsequently decided to consider replacement of that method, because of its slowness and its failure to determine manganese in its higher oxidation states, by a well established method based on a
15、tomic absorption spectrophotometry. The method for the determination of matter insoluble in water described in BS 4130:1967 was technically similar to that described in ISO Recommendation R987:1969. This International Standard was withdrawn because of inaccuracies caused by mass losses arising from
16、the partial dissolution of the sintered glass crucible by the sodium hydroxide solution. Recent work in the UK has shown that such losses are negligible provided that crucibles are suitably pre-treated with sodium hydroxide solution, prior to using them for this determination. The method, modified i
17、n this respect, is therefore published as Part 14 of this standard. It is intended to submit the three methods concerned for consideration as International Standards. In this Part of BS 6075, Table 1 gives the relationship of the other Parts of the standard to the corresponding International Standar
18、ds. Additional information Ethanol. The ethanol used in these determinations may be replaced for these purposes by industrial methylated spirits, 95 % (V/V) complying with the requirements of BS 3591. It should be noted that the use of industrial methylated spirits is governed by The Methylated Spir
19、its Regulations, 1952 (S.I. 1952, No 2230) as amended by The Alcoholic Liquors (Amendment of Units and Methods of Measurement) Regulations 1979 (S.I. 1979, No 1149). It is not permissible to use duty-free ethanol, received under the provisions of the Alcoholic Liquor Duties Act 1979, Section 10, for
20、 purposes for which industrial methylated spirits is an acceptable alternative to ethanol. NOTEAdditional guidance on sampling is given in BS 3020-1, BS 3020-3 and BS 3020-4. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0:1981 BSI
21、 11-1999iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This documen
22、t comprises a front cover, an inside front cover, pages i to iv, pages 1 and 2, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy:
23、 sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0:1981 BSI 11-19991 Table 1 Methods of sampling and test for sodium hydroxide: rela
24、tionship between BS and international series BS 6075 Part no. Corresponding International Standard no. SubjectType of Determination Relationship of International Standard to BS test method 0General introduction 1979Sodium hydroxide content TitrimetricIdentical 980Carbonate contentGas-volumetricNot i
25、mplemented; one test method, ISO 3196, considered to be sufficient 2981Chloride contentMercurimetricIdentical 982Sulphate contentGravimetricNot implemented method disapproved by UK 3983Iron contentPhotometricIdentical (1,10-phenanthroline) 4984Silica contentPhotometricIdentical 985Silica contentGrav
26、imetricNot implemented method disapproved by UK 986Calcium contentComplexometricNot implemented method disapproved by UK 53195Sampling and preparation of main test solution Identical 63196Carbonate contentTitrimetricIdentical 73197Chloride contentPhotometricIdentical 83198Sulphate contentReduction a
27、nd titrimetric Identical 93697Calcium and magnesium contents Flame AASIdentical 105992Mercury contentPhotometricIdentical 115993Mercury contentFlameless AASIdentical 12Copper contentPhotometricNo equivalent International Standard 13aManganese contentNo equivalent International Standard 14Matter inso
28、luble in waterGravimetricNo equivalent International Standard a In course of preparation. Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 blank Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Co
29、py, (c) BSI BS 6075-0:1981 BSI 11-1999 Publications referred to BS 3591, Industrial methylated spirits. BS 4130, Sodium hydroxide (technical grades). Licensed Copy: sheffieldun sheffieldun, na, Wed Dec 06 14:09:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 6075-0: 1981 BSI 389 Chiswick High Road
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