1、BSI Standards PublicationBS ISO 5011:2014Inlet air cleaning equipmentfor internal combustionengines and compressors Performance testingBS ISO 5011:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 5011:2014. Itsupersedes BS ISO 5011:2000 which is withdrawn.T
2、he UK participation in its preparation was entrusted to TechnicalCommittee MCE/21/2, Air filters for air supply to I.C. engines andcompressors - Not on aircraft.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to inclu
3、de all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by BSI StandardsLimited 2014ISBN 978 0 580 84064 7ICS 43.060.20Compliance with a British Standard cannot confer immunity fromlegal obligations.This Britis
4、h Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2014.Amendments issued since publicationDate Text affectedBS ISO 5011:2014 ISO 2014Inlet air cleaning equipment for internal combustion engines and compressors Performance testingSparateurs arauliq
5、ues placs lentre des moteurs combustion interne et des compresseurs Dtermination des performancesINTERNATIONAL STANDARDISO5011Third edition2014-04-01Reference numberISO 5011:2014(E)BS ISO 5011:2014ISO 5011:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights reserved
6、. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at
7、 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 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandBS ISO 5011:2014ISO 5011:2014(E) ISO 2014 All rights reserved iiiConten
8、ts PageForeword v1 Scope . 12 Normative references 13 Terms and definitions . 13.1 Terms, definitions, symbols and units . 13.2 Symbols and units 34 Measurement accuracy and standard conditions 44.1 Measurement accuracy 44.2 Standard conditions . 45 Test materials and test conditions . 45.1 Test dus
9、t 45.2 Test oil for oil bath air cleaners 45.3 Absolute filter materials . 55.4 Absolute filter mass 55.5 Temperature and humidity 56 Test procedure for dry-type air cleaners for automotive applications . 66.1 General . 66.2 Test equipment . 66.3 Restriction and differential pressure test 76.4 Effic
10、iency test . 86.5 Capacity test 96.6 Filter element pressure collapse test 106.7 Variable air flow test . 106.8 Presentation of data 117 Test procedure for dry-type air cleaners for industrial applications 117.1 General 117.2 Test equipment 117.3 Restriction and differential pressure test . 127.4 In
11、itial efficiency test procedure Absolute filter method .127.5 Full-life efficiency and capacity test. 137.6 Presentation of data 157.7 Scavenged air cleaner performance test 157.8 Precleaner performance test . 177.9 Secondary element test procedure . 178 Test procedure for industrial applications of
12、 oil bath air cleaners198.1 General 198.2 Test equipment and conditions . 198.3 Restriction and differential pressure test . 208.4 Oil carry-over test 208.5 Full life efficiency and capacity test . 208.6 Recovery test . 208.7 Presentation of data 21Annex A (normative) Explanation of restriction, dif
13、ferential pressure and pressure loss of an air cleaner.22Annex B (normative) Test equipment 24Annex C (informative) Report sheet on performance testing of air cleaner equipment according to ISO 5011 Automotive application .33Annex D (informative) Report sheet on performance testing of air cleaner eq
14、uipment according to ISO 5011 Industrial application .34BS ISO 5011:2014ISO 5011:2014(E)iv ISO 2014 All rights reservedAnnex E (informative) Presentation of results Air cleaner restriction/differential pressure versus flow .35Annex F (informative) Presentation of results Air cleaner capacity 36Annex
15、 G (normative) Airflow and resistance corrections to standard conditions 37Bibliography .39BS ISO 5011:2014ISO 5011:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International
16、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 ISO, al
17、so take part in the work. ISO collaborates 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.
18、In particular the different approval criteria 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 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elemen
19、ts of this document may be the subject of patent 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
20、(see www.iso.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherenc
21、e to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 22, Road vehicles, Subcommittee SC 7, Injection equipment and filters for use on road vehicles.This third edition cancels
22、and replaces the second edition (ISO 5011:2000), which has been technically revised. ISO 2014 All rights reserved vBS ISO 5011:2014BS ISO 5011:2014Inlet air cleaning equipment for internal combustion engines and compressors Performance testing1 ScopeThis International Standard establishes and specif
23、ies uniform test procedures, conditions, equipment, and a performance report to permit the direct laboratory performance comparison of air cleaners.The basic performance characteristics of greatest interest are air flow restriction or differential pressure, dust collection efficiency, dust capacity,
24、 and oil carry-over on oil bath air cleaners. This test code therefore deals with the measurement of these parameters.This International Standard is applicable to air cleaners used on internal combustion engines and compressors generally used in automotive and industrial applications.2 Normative ref
25、erencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable 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.I
26、SO 5167-1, Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirementsISO 12103-1, Road vehicles Test contaminants for filter evaluation Part 1: Arizona test dust3 Terms and definitions3.1 Te
27、rms, definitions, symbols and unitsFor the purposes of this International Standard, the following terms and definitions apply.3.1.1air filterair cleanerdevice which removes particles suspended in the fresh charge as it is drawn into the engine3.1.2filter elementreplaceable part of the air filter, co
28、nsisting of the filter material and carrying frame3.1.3secondary elementair cleaner element fitted downstream of the primary element for the purpose of providing the engine with protection against dust in the event ofa) certain types of primary element failure, orb) dust being present during the rem
29、oval of the primary element for servicing3.1.4unit under testeither a single air cleaner element or a complete air cleaner assemblyINTERNATIONAL STANDARD ISO 5011:2014(E) ISO 2014 All rights reserved 1BS ISO 5011:2014ISO 5011:2014(E)3.1.5single-stage air cleanerair cleaner which does not incorporate
30、 a separate precleaner3.1.6multistage air cleanerair cleaner consisting of two or more stages, the first usually being a precleaner, followed by one or more filter elementsNote 1 to entry: If two elements are used, the first is called the primary element and the second one is called the secondary el
31、ement.3.1.7precleanerdevice usually using inertial or centrifugal means to remove a portion of the test dust prior to reaching the filter element3.1.8test air flowmeasure of the quantity of air drawn through the air cleaner outlet per unit timeNote 1 to entry: The flow rate is expressed in cubic met
32、res per minute corrected to standard conditions.3.1.9rated air flowflow rate specified by the user or manufacturerNote 1 to entry: It may be used as the test air flow.3.1.10scavenge air flowmeasure of the quantity of air used to remove the collected dust from a precleanerNote 1 to entry: It is expre
33、ssed as a percentage of the test air flow.3.1.11static pressurepressure in a duct, at the observed air flow rate, measured by connecting a pressure gauge to a hole or holes drilled in the wall of the ductNote 1 to entry: In the tests specified in this International Standard, a static pressure is mea
34、sured by a manometer (usually a liquid manometer) as a negative pressure difference against the atmospheric pressure and in the formulae this is treated as a positive value.3.1.12restrictionstatic pressure measured immediately downstream of the unit under test3.1.13differential pressuredifference in
35、 static pressure measured immediately upstream and downstream of the unit under test3.1.14pressure lossmeasure of the loss of energy caused by an air cleaner at the observed air flow rateNote 1 to entry: It is expressed as the differential pressure corrected for any difference in the dynamic head at
36、 the measuring points.Note 2 to entry: For further information, see Annex A.2 ISO 2014 All rights reservedBS ISO 5011:2014ISO 5011:2014(E)3.1.15absolute filterfilter downstream of the unit under test to retain the contaminant passed by the unit under test3.1.16efficiencyability of the air cleaner or
37、 the unit to remove contaminant under specified test conditions3.1.17capacityquantity of contaminant removed by the unit under test in producing specified terminal conditions3.1.18oil carry-overappearance of oil at the cleaner outlet3.1.19test terminal conditioncondition, relating to an air cleaner,
38、 the occurrence of which signifies the end of the testNote 1 to entry: A test terminal condition may be, for example, any one of the following: the restriction or the differential pressure reaches a specified or agreed value; the dust-removing efficiency or some other performance parameter falls to
39、a specified or agreed value; oil carry-over occurs; a dust pot becomes filled.3.1.20automotive applicationair cleaner generally used for internal combustion engines in passenger cars3.1.21industrial applicationair cleaner generally used for internal combustion engines in heavy-duty trucks, construct
40、ion equipment and agricultural tractors3.2 Symbols and unitsThe following applied units, according to ISO 80000-1, are used.Quantity Symbol UnitVolume flow rate qvm3/minVelocity v m/sDensity kg/m3Mass flow rate qmkg/minPressure p PaRestriction prPaDifferential pressure pdPaPressure loss plPaMass m g
41、Temperature T CTime t s ISO 2014 All rights reserved 3BS ISO 5011:2014ISO 5011:2014(E)4 Measurement accuracy and standard conditions4.1 Measurement accuracyMeasure the air flow rate to within 2 % of the actual value, except for the variable air flow test when accuracy may be 2 % of the maximum value
42、 of the cyclic flow rate through the cleaner.Measure the differential pressure and restriction to within 25 Pa of the actual value.Measure the temperature to within 0,5 C of the actual value.Measure the mass to within 1 % of the actual value except where noted.Measure the relative humidity (RH) with
43、 an accuracy of 2 % RH.Measure the barometric pressure to within 3 hPa.The measurement equipment shall be calibrated at regular intervals to ensure the required accuracy.4.2 Standard conditionsAll airflow measurements shall be corrected to a standard condition of 20 C at 1 013 hPa (1 013 mbar).See A
44、nnex G.5 Test materials and test conditions5.1 Test dust5.1.1 GradeThe test dust to be used shall be ISO 12103 - A2 (ISO Fine) or ISO 12103 - A4 (ISO Coarse), subject to agreement between the filter manufacturer and client. The chemical analysis and the particle size distribution shall conform to IS
45、O 12103-1.In the absence of an agreement on the dust for single-stage filters, use ISO Fine test dust, and for multistage filters, use ISO Coarse test dust.5.1.2 PreparationBefore using the test dust, a quantity sufficient to cover the test requirements shall be mixed in a sealed container for a min
46、imum of 15 min. The test dust shall then be allowed to become acclimatised to a constant mass under the prevailing test conditions.NOTE To ensure a constant rate of dust feed with some dust feeders, it may be found necessary to heat the dust prior to being fed to the injector.5.2 Test oil for oil ba
47、th air cleanersThe oil used for testing oil bath air cleaners shall be that specified by the filter manufacturer and agreed by the user for use at the appropriate ambient temperature. If an oil is not specified, the test oil shall be a heavy-duty oil and the viscosity at the temperature of the test
48、shall be adjusted as follows: 85 mm2/s for oil carry-over and restriction/differential pressure tests; 330 mm2/s for efficiency and capacity tests, including an oil carry-over test after the capacity test.4 ISO 2014 All rights reservedBS ISO 5011:2014ISO 5011:2014(E)5.3 Absolute filter materials5.3.
49、1 Filter mediaThe absolute filter may consist of fibreglass media with a minimum thickness of 12,7 mm and a minimum density of 9,5 kg/m3.1)The fibre diameter shall be 0,76 g to 1,27 g and the moisture absorption shall be less than 1 % by mass after exposure to 50 C and 95 % relative humidity for 96 h. The absolute filter media shall be installed with nap side facing upstream, in an airtight holder that adequately supports the media. The face velocity shall not exceed approx. 0,8 m/s to maintain media integ
