1、 Reference number ISO 8007-3:2003(E) ISO 2003INTERNATIONAL STANDARD ISO 8007-3 First edition 2003-10-15 Carbonaceous materials used in the production of aluminium Sampling plans and sampling from individual units Part 3: Sidewall blocks Produits carbons utiliss pour la production de laluminium Plans
2、 dchantillonnage et chantillonnage pour units individuelles Partie 3: Blocs latraux ISO 8007-3:2003(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are em
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5、oblem relating to it is found, please inform the Central Secretariat at the address given below. ISO 2003 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and micro
6、film, without permission in writing from 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 Published in Switzerland ii ISO 20
7、03 All rights reservedISO 8007-3:2003(E) ISO 2003 All rights reserved iiiForeword ISO (the International Organization 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 tec
8、hnical committees. Each member body interested in a subject for which a technical committee has been established 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 closel
9、y with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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
10、International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication 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 documen
11、t may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 8007-3 was prepared by Technical Committee ISO/TC 47, Chemistry, Subcommittee SC 7, Aluminium oxide, cryolite, aluminium fluoride, sodium fluoride, carbonaceous products for th
12、e aluminium industry. ISO 8007 consists of the following parts, under the general title Carbonaceous materials used in the production of aluminium Sampling plans and sampling from individual units: Part 1: Cathode blocks Part 2: Prebaked anodes Part 3: Sidewall blocks ISO 8007-3:2003(E) iv ISO 2003
13、All rights reservedIntroduction Details of the sampling of shaped refractory products in general are given in ISO 5022, which details the statistical basis for sampling plans for acceptance testing of a consignment or lot. Sidewall blocks used in the production of aluminium have specific requirement
14、s for sampling and, while the statistical basis for sampling given in ISO 5022 can be applied, further or modified requirements apply. ISO 3951 describes sampling plans for inspection by acceptance quality limit (AQL). ISO 2859-0 and ISO 2859-1 describe sampling plans for inspection by attributes. I
15、NTERNATIONAL STANDARD ISO 8007-3:2003(E) ISO 2003 All rights reserved 1Carbonaceous materials used in the production of aluminium Sampling plans and sampling from individual units Part 3: Sidewall blocks 1 Scope This part of ISO 8007 describes procedures for sampling consignments of blocks and takin
16、g test samples from single sidewall blocks used in the production of aluminium. 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 edition of the re
17、ferenced document (including any amendments) applies. ISO 2859-0, Sampling procedures for inspection by attributes Part 0: Introduction to the ISO 2859 attribute sampling system ISO 2859-1, Sampling procedures for inspection by attributes Part 1: Sampling schemes indexed by acceptance quality limit
18、(AQL) for lot-by-lot inspection ISO 3951, Sampling procedures and charts for inspection by variables for percent nonconforming ISO 5022, Shaped refractory products Sampling and acceptance testing ISO 6206, Chemical products for industrial use Sampling Vocabulary 3 Terms and definitions For the purpo
19、ses of this document, the terms and definitions given in ISO 2859-0, ISO 2859-1, ISO 3951, ISO 5022 and ISO 6206 apply. 4 Apparatus Suitable cutting equipment, having cutting edges preferably coated with diamond or other extremely hard material. ISO 8007-3:2003(E) 2 ISO 2003 All rights reserved5 Sam
20、pling from single sidewall blocks 5.1 General Single sidewall blocks shall be sampled in accordance with the provisions of ISO 5022 or ISO 2859-1, with the additional requirements given in 5.2 and 5.3 and Clauses 6 to 8. Sidewall blocks are usually unsuitable for their original purpose after samples
21、 have been taken. The sampling plan shall recognize that the block may have to be declared scrap if it cannot be reworked for a different purpose. 5.2 Sampling The sampling positions shall take into consideration the size and shape of different sidewall blocks. It is strongly recommended that an agr
22、eement be made between the supplier and the user concerning sampling locations. Samples shall, wherever practicable, be taken parallel and perpendicular to the major axis of the block. Manufacturers of sidewall blocks, formed by extrusion or vibration, have knowledge of the predominant grain directi
23、on for which it is recommended to take samples in parallel and perpendicular directions. Manufacturers are recommended to inform users of the predominant grain direction where appropriate. Users are recommended to request this information from manufacturers or suppliers. If the predominant grain dir
24、ection is not known then, samples shall be taken in orthogonal x, y and z directions. A sketch of the positions and direction of sampling shall be included in the sampling report see 8 e). 6 Dimensions of the sample(s) The dimensions of the sample(s) shall be chosen according to the tests to be carr
25、ied out. The minimum dimension (usually the diameter) shall be three times the maximum particle size of the dry aggregate, where this is known. Reference shall be made to the International Standards relating to the test(s) to be carried out to ensure that the sample(s) taken from the sidewall block
26、are of suitable dimensions. The samples taken from the sidewall block may already be of the correct dimensions. If not, then the dimensions of the core-drilled sample(s) shall also allow for the provision of parallel sides when the finished test piece is prepared. The cross-section of the finished t
27、est sample(s) taken from the sidewall block shall be circular. The dimensions of the test sample(s) shall be given in the sampling report see 8 f). The specific dimensions of the piece(s) to be tested are normally given in the appropriate International Standard. Where the International Standard does
28、 not specify the dimensions of the test piece(s), a diameter of 30 mm or 50 mm is recommended for practical purposes. The length of the test piece should be at least 1,5 times the diameter. 7 Procedure The sample is to be taken by core drilling or by sawing from suitable locations and in directions
29、parallel and perpendicular to the predominant grain direction, if known. Sampling in the x, y and z directions is strongly recommended. ISO 8007-3:2003(E) ISO 2003 All rights reserved 38 Sampling report The sampling report shall include the following: a) names of producer and customer; b) number and
30、 reference marking of the batch(es); c) reference to this part of ISO 8007, i.e. ISO 8007-3; d) date and place of sampling; e) sketch showing the location of the sampling points and the directions of sampling; f) dimensions of the test sample(s); g) name(s) and job title(s) of the person(s) carrying out the sampling; h) complete details of the sampling plan operated. ISO 8007-3:2003(E) ICS 71.100.10 Price based on 3 pages ISO 2003 All rights reserved
