1、 Reference numberISO 12156-2:2007(E)ISO 2007INTERNATIONAL STANDARD ISO12156-2Second edition2007-02-01Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Part 2: Limit Carburant diesel valuation du pouvoir lubrifiant au banc alternatif haute frquence (HFRR) Partie 2:
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5、 address given below. ISO 2007 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 microfilm, without permission in writing from either ISO at the address below or
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11、or identifying any or all such patent rights. ISO 12156-2 was prepared by a joint working group of Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection equipment and filters for use on road vehicles and ISO/TC 28, Petroleum products and lubricants. This second edition cancels a
12、nd replaces the first edition (ISO 12156-2:1998), which has been technically revised. ISO 12156 consists of the following parts, under the general title Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR): Part 1: Test method Part 2: Limit INTERNATIONAL STANDARD ISO
13、 12156-2:2007(E) ISO 2007 All rights reserved 1Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Part 2: Limit 1 Scope This part of ISO 12156 specifies the performance requirement (limit) necessary to ensure reliable operation of diesel fuel injection equipment wi
14、th respect to lubrication by fuel of such equipment. It applies to fuels used in diesel engines. 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
15、edition of the referenced document (including any amendments) applies. ISO 12156-1, Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Part 1: Test method 3 Test method The test method for the assessment of diesel fuel lubricity to comply with the limit specified i
16、n this part of ISO 12156 shall be the method specified in ISO 12156-1. 4 Limit The performance requirement (limit) for diesel fuel in compliance with this part of ISO 12156 shall be a wear scar diameter corrected to a standardized water vapour pressure of 1,4 kPa (WS1,4) not greater than 460 m. 5 Designation This part of ISO 12156 may be used to specify a lubricity requirement for a fuel for use in a diesel engine. This requirement shall be designated as follows: Lubricity ISO 12156-2 ISO 12156-2:2007(E) ICS 75.160.20 Price based on 1 page ISO 2007 All rights reserved
