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1、a Date: 24 October 2006 Origin: International Latest date for receipt of comments: 31 January 2007 Project no.: 2006/02772 Responsible committee: RPI/1 Refractory products and materials Interested committees: Title: Draft BS ENISO 20565-1 Chemical analysis of chrome-bearing refractory products and c
2、hrome-bearing raw materials (alternative to the X-ray fluorescence method Part1 : Apparatus, reagents, dissolution and gravimetric silica Supersession information: If this document is published as a standard, the UK implementation of it will supersede NONE and partially supersede NONE . If you are a
3、ware of a current national standard which may be affected, please notify the secretary (contact details below). WARNING: THIS IS A DRAFT AND MUST NOT BE REGARDED OR USED AS A BRITISH STANDARD. THIS DRAFT IS NOT CURRENT BEYOND 31 January 2007. This draft is issued to allow comments from interested pa
4、rties; all comments will be given consideration prior to publication. No acknowledgement will normally be sent. See overleaf for information on commenting. No copying is allowed, in any form, without prior written permission from BSI except as permitted under the Copyright, Designs and Patent Act 19
5、88 or for circulation within a nominating organization for briefing purposes. Electronic circulation is limited to dissemination by e-mail within such an organization by committee members. Further copies of this draft may be purchased from BSI Customer Services, Tel: +44(0) 20 8996 9001 or email ord
6、ersbsi-. British, International and foreign standards are also available from BSI Customer Services. British Standards on CD or Online are available from British Standards Publishing Sales Limited. Tel: 01344 404409 or email bsonlinetechindex.co.uk. Information on the co-operating organizations repr
7、esented on the committees referenced above may be obtained from the responsible committee secretary. Cross-references The British Standards which implement International or European publications referred to in this draft may be found via the British Standards Online Service on the BSI web site http:
8、/www.bsi-. Direct tel: 020 8996 7252 Responsible Committee Secretary: Ms Sheila OReilly (BSI) E-mail: sheila.oreillybsi- Draft for Public Comment Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 Form 36 Version 6.1 DPC: 06/30157257 DC Licensed Co
9、py: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI b Introduction This draft standard is based on international discussions in which the UK has taken an active part. Your comments on this draft are invited and will assist in
10、 the preparation of the consequent standard. Comments submitted will be reviewed by the relevant BSI committee before sending the consensus UK vote and comments to the international secretariat, which will then decide appropriate action on the draft and the comments received. If no comments are rece
11、ived to the contrary, then the UK will approve this draft. If the international standard is approved, it is possible the text will be published as an identical British Standard. UK Vote Please indicate whether you consider the UK should submit a negative (with reasons) or positive vote on this draft
12、. Submission The guidance given below is intended to ensure that all comments receive efficient and appropriate attention by the responsible BSI committee. Annotated drafts are not acceptable and will be rejected. All comments must be submitted, preferably electronically, to the Responsible Committe
13、e Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft Word for Windows, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electronically should still adhere to these format requirem
14、ents. All comments submitted should be presented as given in the example below. Further information on submitting comments and how to obtain a blank electronic version of a comment form are available from the BSI web site at:http:/www.bsi- Template for comments and secretariat observations Date: xx/
15、xx/200x Document: ISO/DIS xxxxx 1 2 (3) 4 5 (6) (7) MB Clause No./ Subclause No./ Annex (e.g. 3.1) Paragraph/ Figure/Table/ Note (e.g. Table 1) Type of com- ment Comment (justification for change) by the MB Proposed change by the MB Secretariat observations on each comment submitted 3.1 Definition 1
16、 ed Definition is ambiguous and needs clarifying. Amend to read . so that the mains connector to which no connection . 6.4 Paragraph 2 te The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Delete reference to UV photomet
17、er. Microsoft and MS-DOS are registered trademarks, and Windows is a trademark of Microsoft Corporation. Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPRO
18、VAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH. IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED
19、 IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO WHICH REFERENCE MAY BE MADE IN NATIONAL REGULATIONS. DRAFT INTERNATIONAL STANDARD ISO/DIS 20565-1 International Organization for Standardization, 2006 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION ORGANISATION INTERNATIONALE DE NORMALISATION I
20、SO/TC 33 Voting begins on: 2006-10-19 Secretariat: BSI Voting terminates on: 2007-03-19 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) Part 1: Apparatus, reagents, dissolution and gravimetric silica Analyse chim
21、ique des produits rfractaires contenant du chrome et des matriaux bruts contenant du chrome (mthode alternative la mthode par fluorescence de rayons X) Partie 1: Appareillage, ractifs, dissolution et teneur en silice par gravimtrie ICS 81.080 ISO/CEN PARALLEL ENQUIRY The CEN Secretary-General has ad
22、vised the ISO Secretary-General that this ISO/DIS covers a subject of interest to European standardization. In accordance with the ISO-lead mode of collaboration as defined in the Vienna Agreement, consultation on this ISO/DIS has the same effect for CEN members as would a CEN enquiry on a draft Eur
23、opean Standard. Should this draft be accepted, a final draft, established on the basis of comments received, will be submitted to a parallel two-month FDIS vote in ISO and formal vote in CEN. To expedite distribution, this document is circulated as received from the committee secretariat. ISO Centra
24、l Secretariat work of editing and text composition will be undertaken at publication stage. Pour acclrer la distribution, le prsent document est distribu tel quil est parvenu du secrtariat du comit. Le travail de rdaction et de composition de texte sera effectu au Secrtariat central de lISO au stade
25、 de publication. Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO/DIS 20565-1 ii ISO 2006 All rights reserved PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing
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28、en to ensure that the file is suitable for use by ISO member bodies. In the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. Copyright notice This ISO document is a Draft International Standard and is copyright-protected by ISO.
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30、ured. Requests for permission to reproduce should be addressed to either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Reproduct
31、ion may be subject to royalty payments or a licensing agreement. Violators may be prosecuted. Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO/DIS 20565-1 ISO 2006 All rights reserved iii Contents Page 1 Sco
32、pe1 2 Normative references1 3 Terms and definitions.1 4 Apparatus.2 5 Reagents 2 6 Sample preparation.10 7 Basic procedure 10 8 Determination of loss on ignition (gravimetric) .10 9 Decomposition of the sample and preparation of solutions used in the analysis.10 10 Calculation and expression of test
33、 results.17 11 Examination and adoption of test results.17 12 Test report17 Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO/DIS 20565-1 iv ISO 2006 All rights reserved Foreword ISO (the International Organi
34、zation for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been establishe
35、d has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
36、International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Pub
37、lication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent
38、 rights. ISO 20565-1 was prepared by Technical Committee ISO/TC 33 Refractories. ISO 20565 consists of the following parts, under the general title Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method): Part 1: Apparat
39、us, reagents, dissolution and gravimetric silica Part 2: Wet chemical analysis Part 3: Flame Atomic Absorption Spectrophotometry (FAAS) and Inductively Coupled Plasma Emission Spectrometry (ICP-AES) Licensed Copy: London South Bank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00
40、:00 2006, Uncontrolled Copy, (c) BSI COMMITTEE DRAFT ISO/DIS 20565-1 ISO 2006 All rights reserved 1 Chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials (alternative to the X-ray fluorescence method) Part 1: Apparatus, reagents, dissolution and gravimetric silica
41、1 Scope This International Standard describes methods for the chemical analysis of chrome-bearing refractory products and chrome-bearing raw materials, using traditional (“wet“) methods, ICP-AE spectrometry and FAA spectrometry applicable in the ranges as given in Table 1. ISO 20565 gives alternativ
42、es to the X-ray fluorescence (XRF) method given in ISO 12677. Table 1 Range of determination Component Range % by mass Component Range % by mass SiO2 0,5 to 10 MgO 15 to 85 Al2O3 2 to 30 Na2O 0,01 to 1 Fe2O3 0,5 to 25 K2O 0,01 to 1 TiO2 0,01 to 1 Cr2O3 2 to 60 MnO 0,01 to 1 ZrO2 0,01 to 0,5 CaO 0,01
43、 to 3 P2O5 0,01 to 5 NOTE These values are treated after the loss on ignition has been determined 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest
44、 edition of the referenced document (including any amendments) applies. EN ISO 26485 General requirements for the wet chemical, ICP, AAS and ICP analysis of refractory products and raw materials 3 Terms and definitions The terms and definitions given in ISO 26845 apply. Licensed Copy: London South B
45、ank University, London South Bank University, Sun Dec 24 04:56:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ISO/DIS 20565-1 2 ISO 2006 All rights reserved 4 Apparatus Normal laboratory apparatus and the following. NOTE Other apparatus is defined in ISO 26845. 4.1 Polyethylene tetrafluoride beaker,
46、200 ml. Heat in nitric acid for at least 2 h and wash in water. NOTE Instead of a polyethylene tetrafluoride beaker, a 150 ml platinum dish may be used. 4.2 Volumetric flasks, 100 ml, made of plastics material as appropriate for each for solution, calibrated as follows. Wash the plastic flask and st
47、and it to dry naturally, or wash it with water, ethanol and diethylether and dry it by sending air into it. Cut the 20 graduations off a sheet of section paper (1 mm2 ) into a strip and attach it on the marked line of the plastic flask with the central line of the paper. Weigh the mass of the flask
48、to the nearest mg. Put the water approximately equal to room temperature up to the lower end (B) of the strip and weigh the flask. Then put water up to the upper end (A) of the strip and weigh the flask. Separately, measure the water temperature (C), the room temperature (C), the atmospheric pressur
49、e (kPa) and obtain the correct marked line (i.e. the number of graduations counted from bottom edge (B) of graduation paper), S, by using Equation 1. 20 )(0000001 BA B ww w f ww S + = (1) where, WA is the mass of water up to the top edge (A) of graduation paper i.e. (mass obtained by second weighing) (mass of Erlenmeyer flask), in mg; WB is t