1、Draft for Public Comment Form 36 Version 6.0 I DPC: 01/716043 I Head Office 389 Chiswick High Road London W4 4AL Telephone: +44(0)20 8996 9000 Fax: +44(0)20 8996 7001 www. bsi- Date: 3 Decem ber 2001 Origin: European Latest date for receipt of comments: 31.03.2002 Responsible committee: Project no.
2、: 2001 /O2627 ACE/61 Inspection And Testing Requirements For Aerospace Metallic Materials Interested committees: ACE/49 Title: Draft EN 4800-5 Aerospace series - Titanium and Titanium alloys - Technical specification Part 5: Forging stock Supersession information: If you are aware of a current natio
3、nal 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 31.03.2002. This draft is issued to allow comments from interested parties; all comments will be
4、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 1988 or for circulation within
5、 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 -. British, International and f
6、oreign standards are also available from BSI Customer Services. British Standards on CD or Online are available from British Standards Publishing Sales Limited. Tel: O1 344 404409 or email -, Information on the Co-operating organizations represented on the committees referenced above may be obtained
7、 from the responsible committee secretary. Cross- referen ces 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 . Responsible Committee Secretary: Mr P Rydon (BSI) Direct te
8、l: 020 8996 7266 E-mail: paul. rydonbsi-global .com a Introduction This draft standard is based on European discussions in which the UK took an active part. Your comments on this draft are welcome and will assist in the preparation of the consequent British Standard. If no comments are received to t
9、he contrary, then the UK will approve this draft and implement it as a British Standard. Comment is particularly welcome on national, legislative or similar deviations that may be necessary. Draft no: Even if this draft standard is not approved by the UK, if it receives the necessary support in Euro
10、pe, the UK will be obliged to publish the official English Language text unchanged as a British Standard and to withdraw any conflicting standard. Project no.: 1998/XXXXX DPC no.: 98/XXXXXX UK Vote 3.1 6.4 Please indicate whether you consider the UK should submit a negative (with reasons) or positiv
11、e vote on this draft. Ist definition Editorial Definition is ambiguous and needs clarifying. The use of the UV photometer as an alternative cannot be supported as serious problems have been encountered in its use in the UK. Amend to read . so that the mains connector to which no connection . Delete
12、reference to UV photometer. 2nd paragraph Technical 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, pref
13、erably electronically, to the Responsible Committee Secretary at the address given on the front cover. Comments should be compatible with Version 6.0 or Version 97 of Microsoft Word for WindowsTM, if possible; otherwise comments in ASCII text format are acceptable. Any comments not submitted electro
14、nically should still adhere to these format requirements. Comments should be submitted wherever possible as presented in the example table below. A blank electronic version of this table is available from the Committee Secretary or it can be downloaded from the BSI web site at: http:iiww. bsi-global
15、 .corn/Stai76ar+ - dates of delivery; - material standard number; - delivery condition and metallurgical code of products; - dimensions and tolerances or reference to an appropriate dimensional standard; - product designation, when required; - forwarding address; - nature and type of packing, if req
16、uired; - definition and frequency of any special tests and their retest procedures, if required. 1) Published as AECMA Prestandard at the date of publication of this standard 2) In preparation at the date of publication of this standard Page 5 prEN 4800-5: 2001 5 Health and safety Products in the de
17、livery condition shall fulfil the health and safety laws of the area of the country when and where it is to be delivered. A product safety data sheet shall be available. 6 Technical requirements 6.1 Ge ne ra I The product shall be manufactured in accordance with the requirements of the relevant mate
18、rial standard and the applicable requirements of this specification. A manufacturing schedule shall be established and applied in accordance with EN 2078. Product shall satisfy the requirements of the material standard and/or order and shall be free from irregularities prejudiciable to the subsequen
19、t manufacture or use of this product. Not with standing previous acceptance complying with this material standard, any product that is found, at a later stage, to contain such defects shall be rejected. Unless otherwise specified, the requirements in tables 1 and 2 shall apply in conjunction with th
20、ose of the relevant material standard. Table 1 relates to lines 1 to 29 (inclusive) of the material standard and table 2 relates to lines 30 onwards in which the sub-line format is also used. Lines 2 to 98 may also be opened in line 100 if the material standard details specific qualification require
21、ments. If a specific line number is not shown in tables 1 and 2, the requirement is stated in the material standard and/or order. The requirements of the order and/or material standard shall over-ride the requirements of the technical specif ication. 6.2 Qualification requirements Qualification requ
22、irements when invoked by the material standard and/or order are detailed in tables 1 and 2. Unless otherwise agreed between the manufacturer and purchaser the qualification phase shall be run on the first 3 batches. 6.3 6.3.1 Release tests Release testing shall be the responsibility of the manufactu
23、rer. The purchaser reserves the right to perform any of the inspections and/or tests required by the material standard and/or order. The test samples shall be representative of the product. When required the manufacturer shall inform the purchaser of the planned dates for extraction of samples and r
24、elease testing in order that these operations may be witnessed. Re lease req u i re men ts Tables 1 and 2 detail the requirements for each line of the material standard. Unless otherwise specifically requested by the purchaser, a particular inspection and/or test for release shall be carried out if
25、corresponding acceptance criteria and/or values are stated in the applicable material standard, but see also section 6.2.4 “Capability clause“. 6.3.2 Retests If the test procedure or test piece preparation is faulty, testing shall be re-applied at the original frequency after rectification of the or
26、iginal cause of failure. Page 6 prEN 4800-5: 2001 When failure cannot be attributed to faulty testing, or test piece preparation, further test samples shall be selected at twice the original frequency from the product, one of which shall be that on which the original results were obtained unless alr
27、eady withdrawn by the manufacturer after suitable identification of the cause of failure. If all retest results are satisfactory, the batch shall be accepted. If one or more tests are unsatisfactory, the batch shall be: - rejected, or - 100 % retested and the conforming products accepted, or - parti
28、ally or fully re-heat treated if heat treatment can rectify the cause of the failure and tested as a completely new batch except for chemical composition, for which redetermination of hydrogen content is required. No product or test sample shall be re-heat treated more than twice. 6.3.3 Rejection An
29、y failure to meet the requirements of the material standard shall be cause for rejection. 6.3.4 Special tests Special tests may be required by the purchaser. In such cases, the nature of the test, method, frequency and technical requirements shall be specified on the order or inspection schedule and
30、 shall be mutually agreed by the manufacturer and purchaser. 6.3.5 Capability clause Where capability clause is invoked and where sufficient statistical evidence exists, the test shall not be carried out (unless specifically requested by the purchaser). However, this in no way reduces the obligation
31、s of the manufacturer to fulfil the requirements. If subsequent testing indicates that the product does not comply with the requirements, the batch shall be rejected. If sufficient statistical evidence does not exist, the test shall be carried out at a frequency agreed between the manufacturer and t
32、he purchaser. 6.3.6 Statistical process control Reduction in the extent of release testing, other than that defined in 6.2.4 above, may be negotiated with the purchaser on the basis of appropriate statistical process control and/or statistical data. 6.3.7 Inspection and test report The manufacturer
33、shall furnish, with each delivery, a report conforming to the requirements of EN 2078 stating the following: - manufacturers name and address and, if appropriate, identification of the plant; - order number; - material standard number; - delivery condition and metallurgical code of the product; - qu
34、antity and dimensions; - manufacturing and inspection schedule reference; - cast and batch number; - batch and/or test samples heat treatment condition; - results of the tests and retests if any. 6.4 Traceability Each product shall be traceable to the cast, production batch and/or heat treatment bat
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