1、Designation: D6221/D6221M 00 (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
2、 the 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 cov
3、ers factory 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 min
4、eral powders, granules,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. Combinin
5、gvalues from the two systems 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
6、the responsibility of the userof 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 Shee
7、ts, and Shingles Used inRoofing and 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
8、 Tearing Resistance of Roofing andWaterproofing 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 Termi
9、nology D1079 for terms relating to roofingor 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 installe
10、d, canbe used as the primary material for flashing 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 pe
11、rformance andthese criteria.6. Physical Properties6.1 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 D
12、08 onRoofing and Waterproofing and is the direct responsibility 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_D6
13、221M-00R14E01.2For 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.3The last approved version of this historical s
14、tandard is referenced onwww.astm.org.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States17. 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
15、Methods D228.7.2.2 ThicknessSee Test Methods D751.7.2.3 Load-Strain PropertiesSee 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
16、elongation at maximum load.7.2.4 Impact ResistanceSee Test Method D3746, test 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 a
17、fter 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 Calculate the mean
18、“X” using:X 5(xn(1)where:x = individual test value, andn = number of tests.8.1.2 Calculate the estimated standard deviation “s” using:s 5(x 2 X!2n 2 1!(2)8.1.3 Calculate the mean variance “ V” using:V 5s2n(3)8.1.4 Calculate the effective degrees of freedom “f” using:f 5Vb1Va!2Vb2nb111Va2na112 2 (4)w
19、here:Vband Va= the before and after heat conditioning meanvariances, andnband na= the number of specimens tested.8.1.5 Look up the percentile of the t distribution for thedegrees of freedom calculated in Table 2.8.1.6 Calculate the expected variance “u” between themeans using:u 5 t0.975=Vb1Va(5)8.1.
20、7 Reject the sample if the difference between the beforeand after heat conditioning means is more than 10 % greaterthan the expected variance.9. Inspection9.1 InspectionInspection shall be in accordance with therequirements of this specification.9.2 Inspection AlternativesAlternative inspection requ
21、ire-ments shall be determined by and as agreed upon between thepurchaser and supplier.10. Rejection and Resubmittal10.1 Failure to ConformFailure to conform to any of therequirements as stated in this specification constitutes groundsfor rejection.10.2 Rejection RedressThe supplier shall have the ri
22、ght toinspect the rejected materials. The supplier and the purchasershall agree to the quantity of rolls deemed unacceptable. Thesupplier shall then have the right to submit the same number ofnew rolls as replacement.11. Packaging and Package Marking11.1 The rolls shall be securely wrapped or banded
23、 in asubstantial grade of paper that completely encircles the face ofthe roll in a manner that will prevent slipping.11.2 No roll shall contain more than two pieces, and nomore than 3 % of the rolls in any lot shall contain two pieces.11.3 Unless otherwise specified, each package shall beplainly mar
24、ked with the manufacturers name, brand name,ASTM designation, and the appropriate application technique.12. Keywords12.1 built-up; flashing for roofing; flashing for waterproof-ing; reinforced flashingTABLE 1 Physical PropertiesProperty Type 1 Type 2Mass, kg/m2lb/100 ft2, min 3.4 70 1.7 35Thickness,
25、 mm in., min 3.3 0.130 0.6 0.025Breaking load, k N/m lbf/in., minimum at 73.4F 9.6 55 9.6 55Elongation at break, min % at 73.4F 10 3Mean tear resistance, N lbf, minimum at 73.4F 6 2Peak tear resistance, N lbf, minimum at 73.4F 8 5Flexibility, mandrel diameter, mm in., no cracks 10 0.375 16 0.625Impa
26、ct resistance, % without breaks 75 50TABLE 2 Percentile of the t Distributionft0.975ft0.9751 12.706 6 2.4472 4.303 7 2.3653 3.182 8 2.3064 2.776 9 2.2625 2.571 10 2.228D6221/D6221M 00 (2014)12ASTM International takes no position respecting the validity of any patent rights asserted in connection wit
27、h any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible techn
28、ical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful considerati
29、on at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Har
30、bor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the ASTM website (www.astm.org/COPYRIGHT/).D6221/D6221M 00 (2014)13
