1、Designation:D247522Standard Specification forFelt1This standard is issued under the fixed designation D2475;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last
2、reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers all standard types of felt in theform of rolls and sheets that are suitable f
3、or mechanical use.Certain special-purpose felts are also covered.1.2 This specification is not applicable to felt-like productsthat utilize weaving,knitting,stitching,or bonding such aspapermakers felt.1.3 Trade practice in the felt industry deals in pounds,yards,and inches,therefore the values stat
4、ed in inch-pound units areto be regarded as standard.The values in SI units are providedas information only.1.3.1 The specification referenced in 2.2 uses only inch-pound units.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization
5、 established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D123 Terminology Relating to TextilesD461 Test Methods for Fe
6、lt(Withdrawn 2003)3D4845 Terminology Relating to Wool2.2 Federal Standard:C-F-206,Felt Sheet:Cloth Felt,Wool,Pressed42.3 Felt Manufacturers Council:FS14-68/71 Wool Felt Standard Specifications52.4 SAE Standard:6J314b Felts-Wool and Part Wool3.Terminology3.1 Definitions:3.1.1 felt,na textile structur
7、e characterized by interlock-ing and consolidation of its constituent fibers.TABLE 1 Wool Sheet Felt:Thickness and Mass(Weight)ASTM(NTA)ClassColorThickness,in.Thickness,mmMass(Weight)lb/yd2Mass(Weight)kg/m2NominalTolerancesNominalTolerancesNominalTolerancesNominalTolerancesSheetsCut PartsSheetsCut P
8、arts26S1White0.125 0.014 0.0163.17 0.35 0.411.50 0.100.81 0.0526S4Gray0.1880.0160.0184.780.410.462.250.151.220.080.2500.0200.0226.350.510.563.000.201.630.110.3130.0220.0247.950.560.613.750.252.040.140.3750.0240.0269.520.610.664.500.302.440.160.5000.0300.03212.700.760.816.000.403.260.220.6250.0350.03
9、715.880.890.947.500.454.070.240.7500.0400.04219.051.021.079.000.504.890.270.8750.0460.04822.231.171.2210.500.555.700.301.0000.0510.05325.401.301.3512.000.606.520.331.2500.0620.06531.751.571.6515.000.708.150.381.5000.0720.07538.101.831.9118.000.809.770.431.7500.0830.08544.452.112.1621.000.9011.400.49
10、1This specification is under the jurisdiction of ASTM Committee D13 onTextiles and is the direct responsibility of Subcommittee D13.13 on Wool and Felt.Current edition approved June 1,2022.Published July 2022.Originally approvedin 1965.Last previous edition approved in 2013 as D2475 01(2013)which wa
11、swithdrawn in January 2022 and reinstated in June 2022.DOI:10.1520/D2475-22.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe AST
12、M website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Standardization Documents Order Desk,Bldg.4 Section D,700Robbins Ave.,Philadelphia,PA 19111-5094,Attn:NPODS.5Available from the Northern Textile Association,230 Congress Street,Boston,MA 021
13、10.6Available from the Society of Automotive Engineers,2 Pennsylvania Plaza,New York,NY 10001.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles
14、 on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1TABLE 1ContinuedASTM(NTA)ClassColorThickness,in.Thickness,mmMass(Weight)lb/yd2Mass(
15、Weight)kg/m2NominalTolerancesNominalTolerancesNominalTolerancesNominalTolerancesSheetsCut PartsSheetsCut Parts2.0000.0940.09850.802.392.4924.001.0013.030.542.5000.1150.11963.502.923.0230.001.0516.290.573.0000.1360.14176.203.453.5836.001.1019.550.6034S1White0.1250.0120.0143.170.300.362.000.101.090.05
16、34S2White0.1880.0120.0144.780.300.363.000.151.630.0834S3White0.2500.0160.0186.350.410.464.000.302.170.1634S4Gray0.3130.0170.0197.950.430.485.000.352.710.190.3750.0190.0219.520.480.536.000.403.260.220.5000.0220.02412.700.560.618.000.504.340.270.6250.0260.02815.880.660.7110.000.605.430.330.7500.0290.03119.050.740.7912.000.706.520.380.8750.0320.03422.230.870.8614.000.757.600.411.0000.0360.03825.400.910.9716.000.808.690.431.2500.0420.04531.251.071.1420.000.9010.860.491.5000.0490.05238.101.241.3224.0
