1、Designation:D6221/D6221M00(Reapproved 2014)1Standard Specification forReinforced Bituminous Flashing Sheets for Roofing andWaterproofing1This standard is issued under the fixed designation D6221/D6221M;the number immediately following the designation indicates theyear of original adoption or,in the
2、case of revision,the year of last revision.A number in parentheses indicates the year of lastreapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1NOTEUnits information was editorially corrected in May 2014.1.Scope1.1 This specification covers factory
3、 prepared reinforcedbituminous sheet used in flashing.The bitumen used may beasphalt,coal-tar pitch,or polymer modified bitumen.Thereinforcement may include any one or a combination oforganic(wood fiber),polyester,or glass fiber felts,wovenfabrics,or thermoplastic films.Fine mineral powders,granules
4、,or metal foils may be used as surfacing.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 syste
5、ms may result in non-conformancewith the standard.1.3 The following precautionary statement pertains only tothe test method portion,Section 7,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 usero
6、f this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.2.Referenced Documents2.1 ASTM Standards:2D228 Test Methods for Sampling,Testing,and Analysis ofAsphalt Roll Roofing,Cap Sheets,and Shingles Used inRoofing and
7、WaterproofingD751 Test Methods for Coated FabricsD1079 Terminology Relating to Roofing and WaterproofingD2523 Practice for Testing Load-Strain Properties of Roof-ing MembranesD3746 Test Method for Impact Resistance of BituminousRoofing SystemsD5601 Test Method for Tearing Resistance of Roofing andWa
8、terproofing Materials and Membranes(Withdrawn2002)3D5683 Test Method for Flexibility of Roofing and Water-proofing Materials and MembranesD5869 Practice for Dark Oven Heat Exposure of Roofingand Waterproofing Materials3.Terminology3.1 Definitions:3.1.1 See Terminology D1079 for terms relating to roo
9、fingor waterproofing.4.Classification4.1 Type 1Heavy,thick flashing sheets.4.2 Type 2Light weight,thin flashing sheets5.Significance and Use5.1 The criteria listed in this specification are based onround robin testing of materials that,if correctly installed,canbe used as the primary material for fl
10、ashing membranes.Themanufacturers installation recommendations must be followedin every case.5.2 Compliance with the criteria in this specification isbelieved to be necessary for satisfactory performance,but thelinkage has not been established between performance andthese criteria.6.Physical Propert
11、ies6.1 Conform to criteria in Table 1.6.2 The mean mass,thickness,load at break,and elongationat break shall not change more than 10%from the expectedvariance after heat conditioning.1This specification is under the jurisdiction of ASTM Committee D08 onRoofing and Waterproofing and is the direct res
12、ponsibility of Subcommittee D08.04on Felts,Fabrics and Bituminous Sheet Materials.Current edition approved May 1,2014.Published May 2014.Originallyapproved in 1998.Last previous edition approved in 2006 as D6221 00(2006).DOI:10.1520/D6221_D6221M-00R14E01.2For referenced ASTM standards,visit the ASTM
13、 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.3The last approved version of this historical standard is referenced onwww.astm.org.Copyright ASTM Internationa
14、l,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 7.Sampling and Test Methods7.1 Comply with Test Methods D228 for sampling.7.2 Use the following test methods to test the samples:7.2.1 MassSee Test Methods D228.7.2.2 ThicknessSee Test Methods D751.7.2.3 Load-Strain P
15、ropertiesSee Practice D2523 exceptas noted herein:test five 25 by 150 mm 1 by 6 in.strips inboth the length and width of the roll,using a 100 mm 4 in.jaw gap,and separate the jaws at 0.85 mm/s 2 in./min.Record maximum load and elongation at maximum load.7.2.4 Impact ResistanceSee Test Method D3746,t
16、est witheach sample loose laid on a nominal 25 mm 1 in.thickfiberboard insulation.7.2.5 Tear StrengthSee Test Method D5601.7.2.6 FlexibilitySee Test Method D5683.7.2.7 Heat ConditioningMass,thickness,load,and elon-gation after 35 6 0.25 consecutive days of heat conditioning ina forced draft oven at 70 6 3C 158 6 5F.See PracticeD5869.8.Calculation8.1 Calculate the mean,estimated standard deviation,andmean variance of test values from five specimens tested beforeand after heat conditioning.8.1.1 C
