1、Designation:F 1040 87(Reapproved 2001)Standard Specification forFilter Units,Air Conditioning:Viscous-Impingement and DryTypes,Replaceable1This standard is issued under the fixed designation F 1040;the number immediately following the designation indicates the year oforiginal adoption or,in the case
2、 of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope1.1 This specificati
3、on covers throw-away,flat panel-typefilter units for use in air conditioning,heating,and ventilatingsystems.This specification also includes panel-type filters withpleated media.1.2 The values stated in inch-pound units are to be regardedas the standard.2.Referenced Documents2.1 ASTM Standards:D 395
4、1 Practice for Commercial Packaging22.2ASHRAE Standard:52 Method of Testing Air-Cleaning Devices Used in Gen-eral Ventilation for Removing Particulate Matter32.3Federal Standard:Fed.Std.No.123 Military Standard for Marking for Ship-ment and Storage42.4Military Standard:MIL-STD-129 Marking for Shipme
5、nt and Storage42.5UL Standard:UL900 Test Performance of Air Filter Units53.Descriptions of Term Specific to This Standard3.1 net face areathe net upstream area of the mediumexposed to air flow measured in the plane or planes of themedia,excluding sealing flanges,framing supports,etc.4.Classification
6、4.1 The filters are furnished in two types as follows:4.1.1 Type 1Throw-away frames and media,and4.1.2 Type 2Permanent frames with replaceable media.4.2 The filters are furnished in three grades as follows:4.2.1 Grade AStandard dust-holding capacity,4.2.2 Grade BHigh dust-holding capacity,and4.2.3 G
7、rade CHigh arrestance.5.Ordering Information5.1 Contracts or orders for the units under this specificationshall include the following information:5.1.1 Quantity,5.1.2 Material for media frame for Type 2 filter,(see section6.4.4),5.1.3 Size,(See 7.1),5.1.4 Certification of the filter units by the pro
8、ducer orsupplier,if required,(see Section 10).6.Materials and Manufacture6.1 Filters shall be the manufacturers standard commercialproduct with any added features needed to comply with thespecified requirements.7.Physical Properties7.1 The filter units shall be the flat panel type,with orwithout ple
9、ated media.They shall be designed and fabricatedfor disposal when,because of accumulated dust loading,thedust-load limit is reached.In Type 2 filters,the media framesshall be permanent and the media pad only shall be disposable.The filter media shall be dry or adhesive-coated in accordancewith the m
10、anufacturers recommendations.7.2 Filter ConstructionFilters shall be constructed with90 corners.Frame edges shall be parallel to within116in.Media pad reinforcement in the form of grilles,retaining grids,fabric netting,or the equivalent shall be installed on both facesof the filter in accordance wit
11、h the manufacturers recommen-dations.The media shall be attached to the frame of Type 1filters,and supported in the frame of Type 2 filters,in such amanner that the media pad will not slump or otherwise bepermanently displaced under the conditions of maximum airvelocity(350 ft/min(1.78 m/s)and filte
12、r resistance specifiedherein.7.2.1 Filter MediaFilter media shall be suitable for theintended use and shall be composed of natural,synthetic,orinorganic fibers,or any combination of such fibers.The mediashall be nontoxic.The media shall be suitable for continuous1This specification is under the juri
13、sdiction of ASTM Committee D22 onSampling and Analysis of Atmospheres and is the direct responsibility of Subcom-mittee D22.90 on Executive.Current edition approved Jan.30,1987.Published March 1987.2Annual Book of ASTM Standards,Vol 15.09.3Available from ASHRAE Inc.,1791 Tullie Circle,N.E.,Atlanta,G
14、A 30329.4Available from Naval Publications and Forms Center,5801 Tabor Ave.,Philadelphia,PA 19120.5Available from Underwriters Laboratories,333 Pfingster Road,Northbrook,IL60062.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.use at tempe
15、ratures up to at least 150F(65.5C).Media forfilters normally requiring adhesive shall be furnished with theadhesive applied.7.2.2 Media FramesFrames for Type 1 filters shall besuitably formed to provide positive support for the media padand sufficient structural rigidity for normal handling andinsta
16、llation.Wood-pulp products used for frame constructionshall be sized to reduce moisture absorptivity.Frames for Type2 filters shall be aluminum or steel,as specified(see 4.1.2),andshall be designed to permit ready removal of the soiled mediapad and replacement with a clean pad.Metal used for Type 2frames shall be corrosion-resistant or shall be suitably plated toresist corrosion.8.Performance Requirements8.1 Performance TestDetermination of conformance withthe performance requirements specified
