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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 12156-1:2000 Th
2、e European Standard EN ISO 12156-1:2000 has the status of a British Standard ICS 75.160.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Diesel fuel Assessment of lubricity using the High Frequency Reciprocating Rig (HFRR) Part 1: Test method Licensed Copy: sheffieldun sheff
3、ieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Engineering Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 July 2000 BSI 07-2000 ISBN 0 580 34
4、865 2 BS EN ISO 12156-1:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version of EN ISO 12156-1:2000. It is identical with ISO 12156-1:1997, including Technical Corrigendum 1:1998. The UK participation in its pr
5、eparation was entrusted to Technical Committee MCE/22, Engines for road vehicles, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests
6、 informed; monitor related international and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an anne
7、x which lists normative references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled International Standards Correspon
8、dence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of it
9、self confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii and iii, a blank page, pages 1 to 11 and a back cover. The BSI copyright notice displayed in this
10、document indicates when the document was last issued. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 12156-1 March 2000 ICS 75.160.20Supersedes CR 12787:1997 English version Diesel fu
11、el - Assessment of lubricity using the high-frequency reciprocating rig (HFRR) - Part 1: Test method (ISO 12156- 1:1997, including Technical Corrigendum 1:1998) Carburant diesel - Evaluation du pouvoir lubrifiant au banc alternatif haute frquence - Partie 1: Mthode dessai (ISO 12156-1:1997, Rectific
12、atif Technique 1:1998) This European Standard was approved by CEN on 20 January 2000. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists
13、and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsi
14、bility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Nether
15、lands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Central Secretariat: rue de Stassart, 36 B-1050 Brussels 2000 CENAll rights of exploitation in any form and by any means reserv
16、ed worldwide for CEN national Members. Ref. No. EN ISO 12156-1:2000 E Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Foreword The text of the International Standard from Technical Committee ISO/TC 22 “Road vehicles“ of the International Org
17、anization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 19 “Petroleum products, lubricants and related products“, the secretariat of which is held by NNI. This European Standard supersedes CR 12787:1997. This European Standard shall be given the
18、status of a national standard, either by publication of an identical text or by endorsement, at the latest by September 2000, and conflicting national standards shall be withdrawn at the latest by September 2000. According to the CEN/CENELEC Internal Regulations, the national standards organizations
19、 of the following countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text o
20、f the International Standard ISO 12156-1:1997, including Technical Corrigendum 1:1998 has been approved by CEN as a European Standard without any modification EN ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI A Reference nu
21、mber ISO 12156-1:1997(E) INTERNATIONAL STANDARD ISO 12156-1 First edition 1997-12-15 Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Part 1: Test method Carburant diesel valuation du pouvoir lubrifiant au banc alternatif haute frquence Partie 1: Mthode dessai EN
22、 ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing Internat
23、ional Standards is normally carried out through ISO technical 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 I
24、SO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an In
25、ternational Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard ISO 12156-1 was prepared jointly by Technical Committee ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection equipment and filters for use on road vehicles and ISO/TC 28, Petroleum p
26、roducts and lubricants. 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: Limits Annex A of this part of ISO 12156 is for information only. EN ISO 12156-1:2000 Licensed
27、 Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Introduction All diesel fuel injection equipment has some reliance on diesel fuel as a lubricant. Wear due to excessive friction resulting in shortened life of engine components, such as diesel fue
28、l injection pumps and injectors, has sometimes been ascribed to lack of lubricity in the fuel. The relationship of test results to diesel injection equipment component distress due to wear has been demonstrated for some fuel/hardware combinations where boundary lubrication is a factor in the operati
29、on of the component. Test results from fuels tested to this procedure have been found to correlate to many fuel/hardware combinations and provide an adequate prediction of the lubricating quality of the fuel. EN ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:
30、00 2006, Uncontrolled Copy, (c) BSI EN ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 1 Diesel fuel Assessment of lubricity using the high-frequency reciprocating rig (HFRR) Part 1: Test Method WARNING Application of this p
31、art of ISO 12156 may involve the use of hazardous materials, operations, and equipment. This part of ISO 12156 does not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this part of ISO 12156 to establish appropriate safety and health pra
32、ctices and determine the applicable regulatory limitations prior to use. 1 Scope This part of ISO 12156 specifies a test method using the high-frequency reciprocating rig (HFRR), for assessing the lubricating property of diesel fuels including those fuels which may contain a lubricity-enhancing addi
33、tive. It applies to fuels used in diesel engines. NOTE It is not known if this test method will predict the performance of all additive/fuel combinations. Additional work is underway to further establish this correlation and future revisions of this part of ISO 12156 may be necessary once this work
34、is complete. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 12156. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based
35、 on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of IEC and ISO maintain registers of currently valid International Standards. ISO 4259:1992, Petroleum products Determination and application of precision da
36、ta in relation to methods of test. ISO 5272:1979, Toluene for industrial use Specifications. ISO 6507-1:1), Metallic materials Vickers hardness test Part 1: Test method. ISO 6508:1986, Metallic materials Hardness test Rockwell test (scales A - B - C - D - E - F - G - H - K). ISO/IEC Guide 25:1990, G
37、eneral requirements for the competence of calibration and testing laboratories. ISO Guide 35:1989, Certification of reference materials General and statistical principles. ASTM D-329:1995, Specification for acetone. AISI E-52100, Chromium alloy steel. ANSI B3.12, Metal balls. 1) To be published. (Re
38、vision of ISO 6507-1:1982, ISO 6507-2:1983, ISO 6507-3:1989, ISO 409-1:1982, ISO 409-2:1983 and ISO/DIS 409-3) EN ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 2 3 Definitions For purposes of this part of ISO 12156, the fo
39、llowing definitions apply. 3.1 lubricity: A property of the fluid, measured by the wear scar produced on an oscillating ball from contact with a stationary plate immersed in the fluid and operating under closely controlled conditions. 3.2 MWSD: Measured mean diameter of the wear scar produced on the
40、 test ball. 3.3 WS1,4: Calculated value of wear scar diameter corrected to the standardized water vapour pressure of 1,4 kPa. 4 Principle A sample of the fluid under test is placed in a test reservoir which is maintained at the specified test temperature. A fixed steel ball is held in a vertically m
41、ounted chuck and forced against a horizontally mounted stationary steel plate with an applied load. The test ball is oscillated at a fixed frequency and stroke length while the interface with the plate is fully immersed in the fluid reservoir. The metallurgies of the ball and plate, temperature, loa
42、d, frequency, and stroke length are specified. The ambient conditions during the test are used to correct the size of the wear scar generated on the test ball to a standard set of ambient conditions. The corrected wear scar diameter is a measure of the fluid lubricity. 5 Reagents and materials 5.1 C
43、ompressed air, used for drying the equipment, supplied at a pressure of 140 kPa to 210 kPa and containing less than 0,1 ml/m 3 hydrocarbons and less than 50 ml/m3 water. Warning Use with extreme caution in the presence of combustible material. 5.2 Toluene, in accordance with ISO 5272. Warning Flamma
44、ble. Harmful if inhaled. 5.3 Acetone, in accordance with ASTM D-329. Warning Extremely flammable. Vapours may cause flash fire. 5.4 Reference fluids Warning Flammable. Two reference fluids shall be used for verifying the performance of the test apparatus. The fluids shall have significantly differen
45、t lubricity performance, as measured by this International Standard. The fluids shall have certified HFRR values and humidity correction factors (HCF) from a supplier accredited to ISO/IEC Guide 25 and prepared in accordance with ISO Guide 35. They shall be clearly marked with the HFRR value (WS1,4)
46、 and its expanded uncertainty, expressed in micrometres, and with the HCF expressed in micrometres per kilopascal. The two reference fluids shall have a minimum difference in HFRR value of 200 m, as measured by this part of ISO 12156. NOTE ISOPAR M, which is manufactured by the Exxon Chemical Compan
47、y and used as CEC Reference Fuel RF-74-T-95, has been found to be satisfactory for the basis of a low-lubricity reference fluid. The fuel qualified for use in the Caterpillar 1H or 1G single-cylinder tests, fuel conforming to ISO 4113:1988, Road vehicles Calibration fluid for diesel injection equipm
48、ent, or CEC Reference Fuel RF-90-A-92 have all been found to be satisfactory for the basis of a high-lubricity reference fluid. This information is given for the convenience of users of this part of ISO 12156 and does not constitute an endorsement by ISO of the products named. Equivalent products ma
49、y be used if they can be shown to lead to the same results. EN ISO 12156-1:2000 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 15:39:28 GMT+00:00 2006, Uncontrolled Copy, (c) BSI 3 6 Apparatus 6.1 Test apparatus The test apparatus2) (see figure 1) shall be capable of engaging a steel ball loaded against a stationary steel plate with an applied load and oscillating at a fixed frequency and stroke length while the contact interface is fully immersed in a fluid reservoir according to the test conditi