1、BSI Standards PublicationBS ISO 4548-5:2013Methods of test for full-flow lubricating oil filters forinternal combustion enginesPart 5: Test for cold start simulation andhydraulic pulse durabilityBS ISO 4548-5:2013 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO
2、 4548-5:2013. Itsupersedes BS 7403-5:1991 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee MCE/21, Filters for gases and liquids.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not pu
3、rport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2013. Published by BSI StandardsLimited 2013ISBN 978 0 580 60469 0ICS 27.020Compliance with a British Standard cannot confer immunity fromlegal obligations.
4、This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 August 2013.Amendments issued since publicationDate Text affectedBS ISO 4548-5:2013 ISO 2013Methods of test for full-flow lubricating oil filters for internal combustion engines Part 5: Test f
5、or cold start simulation and hydraulic pulse durabilityMthodes dessai des filtres huile de lubrification passage intgral pour moteurs combustion interne Partie 5: Essai pour simulation de dmarrage froid et de rsistance aux impulsions hydrauliquesINTERNATIONAL STANDARDISO4548-5Second edition2013-07-1
6、5Reference numberISO 4548-5:2013(E)BS ISO 4548-5:2013ISO 4548-5:2013(E)ii ISO 2013 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2013All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or m
7、echanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 0
8、1 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 4548-5:2013ISO 4548-5:2013(E) ISO 2013 All rights reserved iiiContents PageForeword ivIntroduction v1 Scope . 12 Normative references 13 Terms and definitions and graphical symbols 13.1 Terms and definition
9、s . 13.2 Graphical symbols 14 Operational characteristics to be tested 15 Test rig . 26 Test liquid 27 Accuracy 28 Cold start simulation test (see Figure 1) . 39 Hydraulic pulse durability test (see Figure 1) . 310 Test report . 4Annex A (normative) Values to be used for tests if no agreement is rea
10、ched with the manufacturer . 7Bibliography 8BS ISO 4548-5:2013ISO 4548-5:2013(E)ForewordISO (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 I
11、SO 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 ISO, also take part in the work. ISO collaborates
12、closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criter
13、ia needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2. www.iso.org/directivesAttention is drawn to the possibility that some of the elements of this document may be the subject of patent
14、rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received. www.iso.org/patentsAny trade name used in this d
15、ocument is information given for the convenience of users and does not constitute an endorsement.The committee responsible for this document is ISO/TC 70, Internal combustion engines, Subcommittee SC 7, Tests for lubricating oil filters.This second edition cancels and replaces the first edition (ISO
16、 4548-5:1990), of which it constitutes a minor revision.ISO 4548 consists of the following parts, under the general title Methods of test for full-flow lubricating oil filters for internal combustion engines: Part 1: Differential pressure/flow characteristics Part 2: Element by-pass valve characteri
17、stics Part 3: Resistance to high differential pressure and to elevated temperature Part 4: Initial particle retention efficiency, life and cumulative efficiency (gravimetric method) Part 5: Test for cold start simulation and hydraulic pulse durability Part 6: Static burst pressure test Part 7: Vibra
18、tion fatigue test Part 9: Inlet and outlet anti-drain valve tests Part 12: Filtration efficiency using particle counting, and contamination retention capacityThe following parts are under preparation: Part 13: Static burst pressure test for composite filter housings Part 14: Cold start simulation an
19、d hydraulic pulse durability for composite filter housings Part 15: Vibration fatigue test for composite filter housingsiv ISO 2013 All rights reservedBS ISO 4548-5:2013ISO 4548-5:2013(E)IntroductionISO 4548 (all parts) establishes standard test procedures for measuring the performance of full-flow
20、lubricating oil filters for internal combustion engines. The series has been prepared in separate parts, each part relating to a particular performance characteristic.Together the tests provide the information necessary to assess the characteristics of a filter, but if agreed between the purchaser a
21、nd the manufacturer, the tests can be conducted separately. ISO 2013 All rights reserved vBS ISO 4548-5:2013BS ISO 4548-5:2013Methods of test for full-flow lubricating oil filters for internal combustion engines Part 5: Test for cold start simulation and hydraulic pulse durability1 ScopeThis part of
22、 ISO 4548 specifies a method of testing the ability of full-flow lubricating oil filters for internal combustion engines to withstand an internal pressure surge such as occurs when an engine is started from cold, and cyclic internal pressure variations experienced during operation.These tests are in
23、tended for application to spin-on type filters and detachable filters with disposable elements with a maximum flow rate of 100 l/min.The tests can be applied to other filters, if thought applicable, by agreement between the filter manufacturer and the purchaser.NOTE This test is not intended to repl
24、ace simulated environmental testing (e.g. at very low temperatures). If such testing is required, it will be the subject of negotiation between the supplier and customer.2 Normative referencesThe following documents, in whole or in part, are normative referenced in this document and are indispensabl
25、e for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 1219, Fluid power systems and components Graphic symbolsISO 4548-1, Methods of test for full-flow lubricating oil
26、filters for internal combustion engines Part 1: Differential pressure/flow characteristics3 Terms and definitions and graphical symbols3.1 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO 4548-1 apply.3.2 Graphical symbolsFor the purposes of this documen
27、t, the graphical symbols given in ISO 1219 apply.4 Operational characteristics to be testedFilters are subjected in service to pressure fluctuations caused by engine cold starting conditions. The test specified in Clause 8 verifies the ability of the filter canister and seal to withstand these high
28、pressure fluctuations for a given number of start conditions.Filters are also subjected to cyclic pressure variations during normal operation. The test given in Clause 9 verifies the ability of the filter canister and seal to withstand these pressures for a given number of cycles.INTERNATIONAL STAND
29、ARD ISO 4548-5:2013(E) ISO 2013 All rights reserved 1BS ISO 4548-5:2013ISO 4548-5:2013(E)5 Test rigThe test rig shall comprise the following components, together with the necessary tubing, connectors and supports (see Figure 1):a) oil reservoir;b) pump assembly;c) filter to be tested;d) inlet pressu
30、re control valve;e) solenoid valves;f) outlet pressure control valve;g) pressure gauge;h) solenoid sequence timer and counter;i) cooling coils (heat exchanger);j) thermostat (to operate the cut-out switch).An alternative test rig, which produces the pressure pulse waveforms shown in Figure 2, may be
31、 used.6 Test liquidThe test liquid shall be oil with a kinematic viscosity of 10 mm2/s 5 mm2/s (10 cSt 5 cSt) throughout the test (viscosity class ISO VG 22 at 63 C or SAE 5W at 68 C15).7 Accuracy7.1 The measuring instruments shall be capable of measuring to the levels of accuracy given in Table 1.
32、The last column in the table gives the limits within which the test conditions shall be maintained.Table 1 Instrument accuracy and test condition variationTest condition UnitMeasurement accuracyPermissible test condition varia-tionPressure Pa 5 % Time S 0,002 s Temperature C 1C 2 C7.2 Use pressure t
33、ransducers, amplifiers and recording devices with a combined system frequency response such that in the frequency range 0 kHz to 2 kHz, the amplitude ratio is within 0 dB to 3 dB.7.3 Pressure transducer(s) shall be mounted directly into the test component, or as nearly as possible, so as to record t
34、he internal conditions applied to the component. Any restrictions between the transducers and the pressure-containing envelope being tested should be avoided.7.4 Instruments and procedures should conform to ISO 9110-12and ISO 9110-2.32 ISO 2013 All rights reservedBS ISO 4548-5:2013ISO 4548-5:2013(E)
35、8 Cold start simulation test (see Figure 1)8.1 Fit the filter on an appropriate adaptor and apply the filter manufacturers recommended tightening torque or angle of rotation for the filter to be tested.8.2 Connect the test adaptor to the pipe work system of the test rig.8.3 Start the pump, ensuring
36、that regulating valves 4 and 7 and solenoid valves 5 and 6 are fully open.8.4 Allow the rig to run until all air has been purged from the system. Close solenoid valves 5 and 6 and adjust valve 4 until the pressure agreed with the customer is obtained. In the absence of such an agreement, one of the
37、values given in Annex A shall be used.Switch on solenoid valves 5 and 6 to obtain a pressure waveform as indicated in Figure 2.Valve 7 shall be adjusted to give a pressure differential of 10 kPa to 20 kPa to avoid negative pulses of outlet pressure. Any further adjustments during the test should be
38、made as necessary during periods when solenoid valves 5 and 6 are closed.An oscilloscope or an alternative device shall be provided to monitor the pressure waveform and cycle times.8.5 Set the counter to zero.8.6 Open the inlet and return valves of the water cooling system and adjust the water flow
39、to regulate the reservoir oil temperature to maintain the required viscosity (see Clause 6).8.7 Allow the test to continue, making visual checks for signs of failure at frequent intervals, until failure occurs or until the number of cycles agreed with the engine manufacturer has been applied. In the
40、 absence of such an agreement, the value given in Annex A for the test pressure chosen shall be used.8.8 To stop the test, fully open valve 4 and switch off the pump and the solenoid valve control switch.8.9 Check and record the tightening torque (i.e. turn in the tightening direction).8.10 Remove t
41、he filter, allow to drain, and visually examine the unit to determine the failure point and type of failure, if any.9 Hydraulic pulse durability test (see Figure 1)9.1 Fit a new filter on an appropriate adaptor and apply the filter manufacturers recommended tightening torque or angle of rotation for
42、 the filter to be tested.9.2 Connect the test adaptor to the pipe work system of the pulse test rig.9.3 Start the pump, ensuring that regulating valves 4 and 7 and solenoid valves 5 and 6 are fully open.9.4 Allow the rig to run until all air has been purged from the system. Close solenoid valves 5 a
43、nd 6 and adjust valve 4 until the pressure agreed with the customer is obtained. In the absence of such an agreement, the value given in Annex A for the appropriate category shall be used.Switch on solenoid valves 5 and 6 to obtain a pressure waveform as indicated in Figure 2.Valve 7 shall be adjust
44、ed to give a pressure differential of 10 kPa to 20 kPa to avoid negative pulses of outlet pressure. Any further adjustments during the test should be made as necessary during periods ISO 2013 All rights reserved 3BS ISO 4548-5:2013ISO 4548-5:2013(E)when solenoid valves 5 and 6 are open or closed. An
45、 oscilloscope or an alternative device shall be provided to monitor the pressure waveform and cycle times.9.5 Set the counter to zero.9.6 Open the inlet and return valves of the water cooling system and adjust the water flow to regulate the reservoir oil temperature to maintain the required viscosit
46、y (see Clause 6).9.7 Allow the test to continue, making visual checks for signs of failure at frequent intervals, until failure occurs or until the number of cycles agreed with the engine manufacturer has been applied. In the absence of such an agreement, the value given in Annex A for the appropria
47、te category shall be used.9.8 To stop the test, fully open valves 4 and 7 and switch off the pump and the solenoid valve control switch.9.9 Check and record the tightening torque (i.e. turn in the tightening direction).9.10 Remove the filter; allow to drain, and visually examine the unit, after dism
48、antling if necessary, to determine the failure point and type of failure, if any.10 Test reportThe test report shall include at least the following:a) the name of the test establishment;b) the filter type (manufacturer, model number and batch number);c) the date of the test;d) a description of the f
49、ilter and whether it is new or used; if it is used, the approximate period of service;e) the category of filter (see Annex A);f) the rated flow, in litres per minute;g) the test pressure, in kilopascals (see 8.4 and 9.4);h) the test cycle rate, in hertz. (see 8.4 and 9.4);i) the test fluid;j) the test temperature;k) the mode of failure and its location;l) the torque applied initially and at the end of the test, in newton metres (see 8.1 and 8.9, 9.1 and 9.9);m) the number of cycles to failure or the numb
