ASTM_D_226_-_D_226M_-_17.pdf

Designation:D226/D226M17Standard 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 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 U.S.Department of Defense.1.Scope1.1 This specification covers asphalt-saturated organic felts,with or without perforations,intended to be used with asphaltsconforming to the requirements of Specification D312/D312Min the construction of built-up roofs,and with asphalts con-forming to the requirements of Specification D449/D449M inthe construction of water proofing systems.1.2 The values 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 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 healthpractices and determine the applicability of regulatory limita-tions prior to use.1.4 This international standard was developed in accor-dance with internationally recognized principles on standard-ization 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:2D70 Test Method for Density of Semi-Solid BituminousMaterials(Pycnometer Method)D146/D146M Test Methods for Sampling and TestingBitumen-Saturated Felts and Woven Fabrics for Roofingand WaterproofingD312/D312M Specification for Asphalt Used in RoofingD449/D449M Specification forAsphalt Used in Dampproof-ing and WaterproofingD1079 Terminology Relating to Roofing and WaterproofingD6136/D6136M Test Method for Kerosine Number of Un-saturated(Dry)Felt by Vacuum Method3.Terminology3.1 DefinitionsFor definitions of terms used in thisspecification,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 process 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 lumps 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 being 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.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct responsibility of Subcommittee D08.04on Felts,Fabrics and Bituminous Sheet Materials.Current edition approved June 15,2017.Published July 2017.Originallyapproved in 1925.Last previous edition approved in 2009 as D226/D226M 09.DOI:10.1520/D0226_D0226M-17.2For 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 ASTM website.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 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.1 7.Workmanship,Finish,and Appearance7.1 The felt shall be thoroughly and uniformly saturated,and shall show no unsaturated spots at any point upon cutting50-mm 2-in.wide strips at random across the entire sheet andsplitting them open for their full length.7.2 The surface of the felt shall not be coated or coveredwith talc or other substance that would tend to interfere withadhesion between the felt and plying cement or bitum