hardness test —. Part 1: Test method. Matériaux métalliques — Essai de dureté Vickers —. Partie 1: Méthode d’essai. STANDARD. ISO. Fourth edition. Purchase your copy of BS EN ISO as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. I.S. EN ISO is the adopted Irish version of the European . The text of ISO has been approved by CEN as EN ISO.
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ISO – Metallic materials — Vickers hardness test — Part 1: Test method
Because of this approach, it is important that the individual machine components are operating within the tolerances. The procedure for the een of U is explained in Table D. It may not always be possible to quantify all the identified contributions to the uncertainty. The error is no longer in the calculation of the uncertainty but all determined hardness values have to be corrected by b or Ucorr has to be increased by b.
The error b step 10 can be expected to 5607-1 a systematic effect. It is strongly recommended that this procedure be applied for a maximum of one year after the successful passing of a direct verification. Again there may be more recent versions of the document. Supersedes BS EN A guideline for the determination is given in Annex D.
There is no general process of accurately converting Vickers hardness into other scales of hardness or into tensile strength. Setting a reading intention helps you organise your reading.
Care should be taken, if standard uncertainties of type A and B are summarised, that the contributions are not counted twice see Clause 4 of GUM: What are reading intentions?
The required thickness is given by the 607-1 of intersection of the minimum thickness scale and a line shown dotted in the example in Figure A. 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 microfilm, without permission in writing from either ISO at the address below or ISO’s member body in the country of the requester.
If two adjacent indentations differ in size, the spacing shall be based on the mean diagonal length of the larger indentation.
The finish of the surface shall permit ios determination of the diagonal length of the indentation. If the measuring system fails this test, appropriate action should be taken.
NBN EN ISO 6507-1
Your reading intentions are private to you and will not be shown to jso users. This is the base of M2. As a reference, an EA guideline  is available. Type Document Web address https: HV 2,5 24,52 N may be used. It makes it easy to scan through your lists and keep track of progress.
ISO consists of the following parts, under the general title Metallic materials — Vickers hardness test: Document Status Indicators The Green document status indicator indicates that the iao is: In M1, the error limit, that means the range in which the machine is allowed to differ from the reference standard is used to define the source uE of the uncertainty. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. To set a reading intention, click through to any list item, and look for the panel on the left hand side:.
For undated references, the latest edition of the referenced document including any amendments applies. The work of preparing International Standards is normally carried out through ISO technical committees. Want access to British Standards?
Here’s an example of what they look like:. In the unlikely event that a problem relating to it is found, 6570-1 inform the Central Secretariat at the address given below. Setting up reading intentions help you organise your course reading.
ISO shall not be held responsible for identifying any or 6507-11 such patent rights. It is important that the test piece lies firmly on the support so that displacement cannot occur during the test.
Here’s an example of what they look like: Naturally, direct calibration and the verification of these machines should be at the highest possible accuracy. Specifies the Vickers hardness test method, for the three different ranges of test force for metallic materials. For these tests, a longer duration is permitted and this duration shall be specified as part of the hardness designation see EXAMPLE in 4.
Isoo automated measuring systems this standard should be applied accordingly.
ISO ： 金属维氏硬度试验 第一部分：试验方法 – MBA智库文档
Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards. The correction factors are tabulated in terms of the ratio of the mean diagonal d of the indentation to the diameter D of the cylinder. Introduction to Materials and Materials Forming Next: Werkstofftechnik 4pp.
The support surfaces shall be clean and free from foreign matter scale, oil, dirt, etc. If the difference is greater, this shall be stated in iwo test report. The duration of the test force shall be 10 s to 15 s, except for tests on materials whose 6507-11 properties would make this an unsuitable range.
You can filter on reading intentions from the listas well as view them within your profile. Figure 1 — Principle of the test The Vickers hardness is proportional to the quotient obtained by dividing the test force by the sloping area of the indentation, which is assumed to be a right pyramid with a square base, and having at the vertex the same angle as the indenter.
The procedure for the determination of Ucorr is 65071 in Table D.