1、Designation: D312/D312M 16D312/D312M 16aStandard Specification forAsphalt Used in Roofing1This standard is issued under the fixed designation D312/D312M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A
2、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 four types of asphalt i
3、ntended for use in built-up roof construction, construction of some modifiedbitumen systems, construction of bituminous vapor retarder systems, and for adhering insulation boards used in various types ofroof systems. The specification is intended for general classification purposes only, and does no
4、t imply restrictions on the slopeat which an asphalt must be used.1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the other. Com
5、bining values from thetwo systems may result in non-conformance with the standard.1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and d
6、etermine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D5/D5M Test Method for Penetration of Bituminous MaterialsD36/D36M Test Method for Softening Point of Bitumen (Ring-and-Ball Apparatus)D92 Test Method for Flash and Fire Points by Cleveland Op
7、en Cup TesterD113 Test Method for Ductility of Bituminous Materials (Withdrawn 2016)3D140/D140M Practice for Sampling Asphalt MaterialsD1079 Terminology Relating to Roofing and WaterproofingD2042 Test Method for Solubility of Asphalt Materials in TrichloroethyleneD3461 Test Method for Softening Poin
8、t of Asphalt and Pitch (Mettler Cup-and-Ball Method)D4402/D4402M Test Method for Viscosity Determination of Asphalt at Elevated Temperatures Using a Rotational ViscometerD7553 Test Method for Solubility of Asphalt Materials in N-Propyl Bromide3. Materials and Manufacture3.1 The asphalts shall be pre
9、pared from crude petroleum.4. Physical Requirements4.1 Asphalts shall be homogeneous and free of water.4.2 Asphalts of each type shall conform to the physical properties prescribed in Table 1.5. Sampling and Test Methods5.1 Sample the material and determine the properties enumerated in this specific
10、ation in accordance with the following methods:5.1.1 SamplingPractice D140/D140M.1 This specification is under the jurisdiction ofASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.03 on Surfacingand Bituminous Materials for Membrane Waterproofing an
11、d Built-up Roofing.Current edition approved May 1, 2016Dec. 15, 2016. Published May 2016December 2016. Originally approved in 1929. Last previous edition approved in 20152016 asD312/D312M 15.D312/D312M 16. DOI: 10.1520/D0312_D0312M-16.10.1520/D0312_D0312M-16A.2 For referencedASTM standards, visit th
12、eASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document i
13、s not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as approp
14、riate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.1.2 Softening PointSee Test Methods D36/D36M or D3461. In cas
15、es where a disagreement exists between the purchaser andthe seller, Test Method D36/D36M shall be used as the referee method.5.1.3 Flash PointTest Method D92.5.1.4 PenetrationTest Method D5/D5M.5.1.5 DuctilityTest Method D113.5.1.6 SolubilityTest Method D2042 or D7553. In cases where a disagreement
16、exists between the purchaser and the seller, TestMethod D2042. shall be used as the referee method.5.1.7 EVTTest Method D4402/D4402M.6. Inspection6.1 Inspection of the material shall be agreed upon between the purchaser and the seller as part of the purchase contract.7. Rejection and Resubmittal7.1
17、Failure to conform to any of the requirements prescribed in this specification shall constitute grounds for rejection. In caseof rejection, the seller shall have the right to reinspect the rejected material and resubmit the lot after removal of those packagesnot conforming to the requirements.8. Pac
18、kaging and Marking8.1 Asphalt shall be suitably packaged (if not shipped in bulk) to permit acceptance by the carrier and to afford adequateprotection from the normal hazards of handling and shipment.8.2 Each container or bill of lading on bulk shipments shall be plainly marked with the name of the
19、manufacturer or seller andthe ASTM designation and type of product, maximum kettle temperature of 550F, and the lot specific equiviscous temperature(EVT) for mop and for mechanical spreader application.9. Keywords9.1 asphalt; built-up roof; roofing; softening pointAPPENDIX(Nonmandatory Information)X
20、1. APPLICATION GUIDEX1.1 For built-up membrane construction, asphalt should be applied within the EVT application range for asphalt as described inTerminology D1079.X1.2 At no time should the kettle temperature exceed 550F.TABLE 1 Physical Requirements of Asphalt in RoofingProperty Type I Type II Ty
21、pe III Type IVMin Max Min Max Min Max Min MaxSoftening point, C F 57 135 66 151 70 158 80 176 85 185 96 205 99 210 107 225Flash point, C F 302 575 . 302 575 . 302 575 . 302 575 .Penetration, units:at 0C 32F 3 . 6 . 6 . 6 .at 25C 77F 18 60 18 40 15 35 12 25at 46C 115F 90 180 . 100 . 90 . 75Ductility
22、at 25C 77F, cm 10.0 . 3.0 . 2.5 . 1.5 .Solubility in trichloroethylene, % 99 . 99 . 99 . 99 .Solubility, % 99 . 99 . 99 . 99 .EVT, C FAt 125 cPs 221 430 235 455At 75 cPs 243 470 252 485D312/D312M 16a2ASTM International takes no position respecting the validity of any patent rights asserted in connec
23、tion with 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 responsib
24、le technical 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 cons
25、ideration 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 B
26、arr Harbor 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 Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 16a3
