1、Designation:F251905(Reapproved 2015)An American National StandardStandard Test Method forGrease Particle Capture Efficiency of Commercial KitchenFilters and Extractors1This standard is issued under the fixed designation F2519;the number immediately following the designation indicates the year oforig
2、inal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This test method can be used to determine the greaseparticle capture e
3、fficiency of components and systems used incommercial kitchens to capture grease effluent prior to enteringthe exhaust duct.The results can be used to select a filtersystem best suited to a particular application.1.2 This test method is applicable to filter components andsystems.The performance info
4、rmation is obtained for new orclean filters and does not include the performance of used orloaded filters.1.3 The filter can be evaluated with respect to the following(where applicable):1.3.1 Pressure drop as a function of airflow through the filter(10.3),and1.3.2 Particulate capture efficiency by p
5、article size(10.4).1.4 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are for informa-tion only.1.5 This test method may involve hazardous materials,operations,and equipment.This standard does not purport toaddress all of the safety concerns,if an
6、y,associated with itsuse.It is the responsibility of the user of this standard toestablish appropriate safety and health practices and deter-mine the applicability of regulatory limitations prior to use.2.Referenced Documents2.1 ASHRAE Standard:2ANSI/ASHRAE Standard 52.2-1999,Method of TestingGenera
7、l Ventilation Air-Cleaning Devices for RemovalEfficiency by Particle Size2.2 ISO Standard:3ISO Standard 3966,Measurement of Fluid Flow in ClosedConduitsVelocityArea Method Using Pitot Static Tubes3.Terminology3.1 Definitions:3.1.1 airflow rate,nvolumetric flow rate of air that passesthrough a filter
8、 or a bank of filters.3.1.2 capture effciency,nproportion of aerosol particlesremoved by a filter as a function of particle size,usuallyexpressed as a percentage.3.1.3 cartridge filter,nremovable extractor,a removable,integral component of listed exhaust hoods,which is typicallyconstructed of stainl
9、ess steel and containing a series ofhorizontal baffles designed to remove grease and drain it into acontainer.3.1.4 fixed extractor,nwater-wash hood or linear slothood,a fixed,integral component of listed exhaust hoods,which is typically constructed of stainless steel and containinga series of horiz
10、ontal baffles that run the full length of the hood.3.1.5 grease filter,ndevice installed into a hood to capturegrease effluent before it enters the exhaust duct.Severalidentical devices may be installed in parallel in a hood.Thedevice may consist of more than one component or section.3.1.6 pressure
11、drop,nchange in static pressure betweenthe front surface of the grease filter and its rear surface underthe rated airflow rate conditions.3.1.7 reference hood,nType I exhaust hood used for the“no extractors”condition when measuring the efficiency andpressure drop of fixed extractor hoods.This is typ
12、ically thesame hood that is used for testing removable grease filters andremovable cartridge filters.3.2 Symbols:E=capture efficiencyn=number of sample sets1This test method is under the jurisdiction of ASTM Committee F26 on FoodService Equipment and is the direct responsibility of Subcommittee F26.
13、07 onCommercial Kitchen Ventilation.Current edition approved Nov.1,2015.Published December 2015.Originallyapproved in 2005.Last previous edition approved in 2011 as F2519 05(2011)1.DOI:10.1520/F2519-05R15.2Available from American Society of Heating,Refrigerating,and Air-Conditioning Engineers,Inc.(A
14、SHRAE),1791 Tullie Circle,NE,Atlanta,GA30329.3Available from International Organization for Standardization(ISO),1 rue deVaremb,Case postale 56,CH-1211,Geneva 20,Switzerland.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 P=penetrationt=t
15、 distribution variableT=sampling timeW=counts of each size range(or channel)with testdevice(s)installedWO=counts of each size range(or channel)without testdevice(s)=standard deviation of a sample3.3 Subscripts:b=backgroundc=correlatione=estimatedi=sample numberlcl=lower confidence limitn=number of s
16、ample setso=observedt=testing a filterucl=upper confidence limitw=with test device(s)installedwo=without test device(s)installed4.Summary of Test Method4.1 There are three predominant classes of filters in kitchenventilation grease extraction systems:removable baffle filters,removable cartridge filters,and fixed extractors.4.2 Removable baffle and cartridge filters to be tested areinstalled into the test system.4.2.1 Identical filters to be tested are installed into astandard 4-ft canopy hood co
