1、 ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 4: Air filter element test method American Society of Agricultural and Biological Engineers ASABE is a professional and technical organization, of members w
2、orldwide, who are dedicated to advancement of engineering applicable to agricultural, food, and biological systems. ASABE Standards are consensus documents developed and adopted by the American Society of Agricultural and Biological Engineers to meet standardization needs within the scope of the Soc
3、iety; principally agricultural field equipment, farmstead equipment, structures, soil and water resource management, turf and landscape equipment, forest engineering, food and process engineering, electric power applications, plant and animal environment, and waste management. NOTE: ASABE Standards,
4、 Engineering Practices, and Data are informational and advisory only. Their use by anyone engaged in industry or trade is entirely voluntary. The ASABE assumes no responsibility for results attributable to the application of ASABE Standards, Engineering Practices, and Data. Conformity does not ensur
5、e compliance with applicable ordinances, laws and regulations. Prospective users are responsible for protecting themselves against liability for infringement of patents. ASABE Standards, Engineering Practices, and Data initially approved prior to the society name change in July of 2005 are designate
6、d as “ASAE“, regardless of the revision approval date. Newly developed Standards, Engineering Practices and Data approved after July of 2005 are designated as “ASABE“. Standards designated as “ANSI“ are American National Standards as are all ISO adoptions published by ASABE. Adoption as an American
7、National Standard requires verification by ANSI that the requirements for due process, consensus, and other criteria for approval have been met by ASABE. Consensus is established when, in the judgment of the ANSI Board of Standards Review, substantial agreement has been reached by directly and mater
8、ially affected interests. Substantial agreement means much more than a simple majority, but not necessarily unanimity. Consensus requires that all views and objections be considered, and that a concerted effort be made toward their resolution. CAUTION NOTICE: ASABE and ANSI standards may be revised
9、or withdrawn at any time. Additionally, procedures of ASABE require that action be taken periodically to reaffirm, revise, or withdraw each standard. Copyright American Society of Agricultural and Biological Engineers. All rights reserved. ASABE, 2950 Niles Road, St. Joseph, Ml 49085-9659, USA, phon
10、e 269-429-0300, fax 269-429-3852, hqasabe.org S T A N D A R D ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biological Engineers 1ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Approved October 2006; reaffirmed January 2017 as an American National Standard Tractor
11、s and self-propelled machines for agriculture and forestry Operator enclosure environment Part 4: Air filter element test method These materials are subject to copyright claims of ISO and ASABE. No part of this publication may be reproduced in any form, including an electronic retrieval system, with
12、out the prior written permission of ASABE. All requests pertaining to ASABE/ISO 14269-4:1997 (SEP2006) standard should be submitted to ASABE. This standard was reviewed for adoption by the ASABE Power and Machinery Agricultural Machinery Common Tests Technical subcommittee, and has been formally app
13、roved by the Technical Committee. The adoption of this standard was made possible by the signing of 2004 SAE-ASABE copyright agreements, which gave ASABE a royalty-free license to publish in whole or in part SAE standard document J1503. Adopted and approved as an American National Standard October 2
14、006; reaffirmed January 2012; January 2017. Keywords: Enclosure, Environment, Operator 0 Foreword 0.1 ASAE/ISO 14269-4:1997, Tractors and self-propelled machines for agriculture and forestry-Operator enclosure environment Part 4: Air filter element test method, is an adoption without modification of
15、 the identically titled ISO standard ISO 14269- 4:1997, Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 4: Air filter element test method. This ISO standard is a derivative of SAE J1503, Performance Test for Air-Conditioned, Heated, and Ventilate
16、d Off-Road Self-Propelled Work Machines. 0.2 ASABE/ISO 14269-4 specifies a uniform test method for determining performance levels of operator enclosure panel-type air filters. It is applicable to tractors and self-propelled machines for agriculture and forestry when equipped with an operator enclosu
17、re with a ventilation system. 0.3 Two normative references are listed in ISO 14269-4:1997. These references have been reviewed and accepted as part of the adoption of ASABE/ISO 14269-4:1997. 0.4 This standard had been approved as an American National Standard by ANSI (American National Standard Inst
18、itute). Text of ISO 14269-4:1997, Tractors and self-propelled machines for agriculture and forestry-Operator enclosure environment Part 4: Air filter element test method, follows. 1 Scope This part of ISO 14269 specifies a uniform test method for determining performance levels of operator enclosure
19、panel-type air filters. It is applicable to tractors and self-propelled machines for agriculture and forestry when equipped with an operator enclosure with a ventilation system. ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biological Engineers 22 Normative
20、references The following standards contain provisions which, through reference in this text, constitute provisions of this part of ISO 14269. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO 1426
21、9 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 5011:1988, Inlet air cleaning equipment for internal combustion engines and compressors Per
22、formance testing. ISO 14269-1:1997, Tractors and self-propelled machines for agriculture and forestry Operator enclosure environment Part 1: Vocabulary. 3 Definitions For the purposes of this part of ISO 14269. the definitions given in ISO 14269-1 apply, of which the following are particularly relev
23、ant. 3.1 operator enclosure air filter element: Medium in which particulate matter is removed from the incoming air supply. ISO 14269-1:1997, definition 2.15 3.2 filter efficiency: Ability of the air filter element to remove particulate matter. ISO 14269-1:1997, definition 2.16 3.3 test dust: Partic
24、ulate matter used to evaluate the filter element. ISO 14269-1:1997, definition 2.17 4 Air filter element performance test The test shroud configurations for the operator enclosure filter comparison tests are given in 4.1.1 and Figure 1. This test procedure also designates a recommended intake veloci
25、ty for the dust mixing chamber. (See ISO 5011:1988, Figure 2.) 4.1 Test equipment and instruments 4.1.1 Test equipment in accordance with Figure 2, used to determine the resistance to air flow, particulate holding capacity, particulate removal efficiency, and sealing characteristics. For element con
26、figurations other than panel type, see ISO 5011. 4.1.2 Dust metering device in accordance with Figure 3 which, when used with the dust injector (Figure 4), is capable of metering dust over the range of delivery rates required. This dust feed system shall not change the primary particle size distribu
27、tion of the particulate. The average delivery rate shall be within 5% of the desired rate and the deviation in the instantaneous delivery rate from the average shall be no more than 5%. 4.2 Test conditions and material 4.2.1 All air flow measurements are to be corrected to a standard condition of 25
28、C at 100 kPa. 4.2.2 Test dust shall be standardized and shall be of two grades labelled fine and coarse. For typical particle size distribution and chemical composition, refer to Tables 1, 2 and 3. It is difficult to select a test dust size distribution and concentration which will be representative
29、 of all service conditions; therefore, based primarily on practical considerations, the concentration shall be 1 g/m3for coarse and fine dusts (1 g/m3is generally accepted as zero visibility conditions). ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biologic
30、al Engineers 3Table 1 Chemical analysis of test dust Chemical Amount % (m/m) SiO2 67-69 Fe2O3 3-5Al2O3 15-17 CaO 2-4MgO 0,5-1,5 Total alkalis 3-5 Ignition loss 2-3 Table 2 Particle size distribution by volume Size m Fine Grade % (V/V) max. Coarse Grade % (V/V) max. 5,5 38 3 13 3 11 54 3 24 3 22 71 3
31、 37 3 44 89 3 56 3 88 97 3 84 3 125 100 100 Table 3 Particle size distribution by mass Dimension d m Fine Grade % (m/m) max. Coarse Grade % (m/m) max. 0 d 5 39 2 12 2 5 d 10 18 3 12 3 10 d 20 16 3 14 3 20 d 40 18 3 23 3 40 d 80 9 3 30 3 80 d 200 0 9 3 4.2.3 The absolute filter shall consist of fiber
32、glass media with a minimum thickness of 12,7 mm and a minimum density of 9,5 kg/m3. The fiber diameter shall be 0,76 m to 1,27 m and the moisture absorption shall be less than 1% by weight after exposure of 50C and 95% relative humidity for 96 h. The filter shall be installed with the nap side facin
33、g upstream in an air-tight holder that adequately supports the media. The face velocity shall not exceed 50 m/min to maintain media integrity. 4.2.4 The mass of the absolute filter shall be measured to the nearest 0,01 g after the weight has stabilized and while in a ventilation oven at 105C 5C. If
34、stabilization cannot be determined, the filter shall remain in the oven for at least 4 h. 4.2.5 All tests shall be conducted with air entering the air filter at a temperature of 24C 8C and a relative humidity of (50 15)%. NOTE: Since atmospheric conditions affect test results, when comparing perform
35、ance of filters designed for the same application, tests should be conducted within the narrowest range of temperature and humidity possible. ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biological Engineers 44.2.6 The velocity of the air entering the top o
36、f the dust mixing chamber shall be a minimum of 6 m/s (see Figure 1). 4.2.7 Air flow restriction and pressure drop test shall be conducted using a minimum of three points: 80%, 100% and 120% of rated air flow, using the element restriction test setup shown in Figure 2. Condition the unit to be teste
37、d for at least 30 min under temperature and humidity conditions equivalent to those of the test area. 4.2.8 The air filter efficiency, E, as a percentage, is calculated as follows: E = 100+Affmmmwhere mf is the increase in mass of the filter element under test; mA is the increase in mass of the abso
38、lute filter. A Dust injectors G Blower B Filter depth H Compressed air C Filter element being tested I From dust feeder D Flow J Restrictor plates E Piezometer ring K Calculate velocity between top restrictor plates F Absolute filter housing Figure 1 Test shroud ASABE/ISO 14269-4:1997 (SEP2006) (R20
39、17) Copyright American Society of Agricultural and Biological Engineers 5Key A Dust metering device H Piezometer ring B Dust transfer tubing I Absolute filter housing C Compressed air supply J Flowrate measuring device D Compressed air lines K Flowrate control system E Dust injectors L Blower or oth
40、er device for including air flow F Test shroud M Restriction measuring device G Filter element being tested Figure 2 Test equipment setup ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biological Engineers 6Figure 3 Dust feeder ASABE/ISO 14269-4:1997 (SEP2006
41、) (R2017) Copyright American Society of Agricultural and Biological Engineers 7Figure 4 Dust injector ASABE/ISO 14269-4:1997 (SEP2006) (R2017) Copyright American Society of Agricultural and Biological Engineers 8Annex A (informative) Example of test report form for panel-type air filter Test flowrat
42、e: . m3/min Initial restriction: . Pa Dust concentration (ISO 14269-4, 4.2.2): . g/m3Dust type: fine/coarse Minimum quantity of dust to obtain a restriction of . . Pa: .g Minimum efficiency of filter element at above restriction: % Minimum efficiency of filter element for a restriction of 125 Pa, initial efficiency: % Laboratory test conditions Before After Temperature C . C Relative humidity . % % Barometric pressure kPa . kPa
