1、Designation:D226/D226M09Standard Specification forAsphalt-Saturated Organic Felt Used in Roofing andWaterproofing1This standard is issued under the fixed designation D226/D226M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year
2、 of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()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 specification covers asphalt-sat
3、urated organic felts,with or without perforations,intended to be used with asphaltsconforming to the requirements of Specification D312 in theconstruction of built-up roofs,and with asphalts conforming tothe requirements of Specification D449 in the construction ofwater proofing systems.1.2 The valu
4、es stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3
5、 The following safety hazards caveat pertains only to thetest method portion,Section 8,of this specification:Thisstandard does not purport to address all of the safety concerns,if any,associated with its use.It is the responsibility of the userof this standard to establish appropriate safety and hea
6、lthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D70 Test Method for Density of Semi-Solid BituminousMaterials(Pycnometer Method)D146 Test Methods for Sampling and Testing Bitumen-Saturated Felts and Woven Fabrics for Roof
7、ing andWaterproofingD312 Specification for Asphalt Used in RoofingD449 Specification for Asphalt Used in Dampproofing andWaterproofingD1079 Terminology Relating to Roofing and WaterproofingD6136 Test Method for Kerosine Number of Unsaturated(Dry)Felt by Vacuum Method3.Terminology3.1 DefinitionsFor d
8、efinitions of terms used in this speci-fication,refer to Terminology D1079.4.Classification4.1 Asphalt-saturated felts covered by this specification areof two types:4.1.1 Type ICommonly called No.15 asphalt felt.4.1.2 Type IICommonly called No.30 asphalt felt.5.Materials and Manufacture5.1 In the pr
9、ocess of manufacture a single thickness of dryfelt shall be saturated with an asphaltic saturant.5.2 The felt shall be produced principally from organicfibers.The surface of the felt shall be uniform and relativelysmooth.Upon splitting or tearing on the bias,the felt shallappear reasonably free of l
10、umps or particles of foreign sub-stances.6.Physical Requirements6.1 The material shall conform to the physical requirementsprescribed in Table 1 and the dimensions and masses pre-scribed in Table 2.6.2 The finished product shall not crack nor be so sticky asto cause tearing or other damage upon bein
11、g unrolled attemperatures between 10 and 60C 50 and 140F.6.3 Perforated felts shall conform to the same requirementsas the plain type but shall also have uniformly spaced perfo-rations.7.Workmanship,Finish,and Appearance7.1 The felt shall be thoroughly and uniformly saturated,and shall show no unsat
12、urated spots at any point upon cutting50-mm 2-in.wide strips at random across the entire sheet andsplitting them open for their full length.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.04on Felts,
13、Fabrics and Bituminous Sheet Materials.Current edition approved July 1,2009.Published July 2009.Originally approvedin 1925.Last previous edition approved in 2006 as D226 06.DOI:10.1520/D0226_D0226M-09.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service
14、at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.2 The surface of the felt shall not be coated or cove
15、redwith talc or other substance that would tend to interfere withadhesion between the felt and plying cement or bitumen.7.3 The finished material shall be free of visible externaldefects,such as holes,ragged or untrue edges,breaks,cracks,tears,protuberances and indentations,except for intentionallyp
16、rovided perforations and the associated protuberances.8.Sampling and Test Methods8.1 Sample the material and determine the properties enu-merated in this specification in accordance with Test MethodsD146.8.2 Determine the openness of the perforations in saturatedfelts by the following method:8.2.1 Cut three adjacent 305-mm 12-in.6 0.5%squarespecimens across the width of the felt.Determine the numberof perforations per specimen by multiplying the number ofperforations per row by the number of row