1、Designation: D6136/D6136M 97 (Reapproved 2013)1D6136/D6136M 15Standard Test Method forKerosine Number of Unsaturated (Dry) Felt by VacuumMethod1This standard is issued under the fixed designation D6136/D6136M; the number immediately following the designation indicates theyear of original adoption or
2、, in 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.1 NOTEUnits information was editorially corrected in January 2013.1. Scope1.1 This test met
3、hod covers the determination of the relative saturating capacity of unsaturated (dry) felt papers used in roofing.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 syst
4、em shall be used independently of the other. Combining 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 establi
5、sh appropriate safety and health practices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D585 Practice for Sampling and Accepting a Single Lot of Paper, Paperboard, Fiberboard, and Related Product (Withdrawn2010)3D1298 Test Method fo
6、r Density, Relative Density, or API Gravity of Crude Petroleum and Liquid Petroleum Products byHydrometer MethodD3699 Specification for Kerosine3. Summary of Test Method3.1 The kerosine number of unsaturated (dry) felt is computed from the weight of a kerosine of known specific gravity retainedby th
7、e felt after displacement of the air from interior voids. It is the millilitres of kerosine held /100 g of felt, and thus, is a measureof the quantity of saturant that a given felt will absorb.4. Significance and Use4.1 The ability to absorb kerosine is an indication of the ability to absorb hot asp
8、halt. The kerosine number is used in calculatingsaturation efficiency.5. Apparatus5.1 Glass Vessel, approximately 1500 mL capacity, for soaking specimens of felt in kerosine, under vacuum.5.2 Vacuum Pump, capable of reaching and maintaining a vacuum of at least 700 mm Hg in the glass vessel.5.3 Ligh
9、tweight Glass or Metal Weighing Container, with tightly fitting cover, 60 by 140 mm 2.5 by 5.5 in. or larger, to containfelt strips in a horizontal position without bending or distortion.5.4 Drying Oven, with dimensions at least 300 by 300 by 300 mm 12 by 12 by 12 in.1 This test method is under the
10、jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.04 on Felts,Fabrics and Bituminous Sheet Materials.Current edition approved Jan. 1, 2013Nov. 1, 2015. Published January 2013December 2015. Originally approved in 1997. Last previous e
11、dition approved in 20042013as D6136 97 (2004).D6136/D6136M 97 (2013)1. DOI: 10.1520/D6136_D6136M-97R13E01.10.1520/D6136_D6136M-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume informati
12、on, 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 is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made t
13、o the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.Copyrig
14、ht ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States15.5 Other ApparatusDesiccator, wire hook, and if necessary, a punch to make a small hole in a corner of the specimens afterthey are cut.6. Materials6.1 Water-White Kerosine, complying to the re
15、quirements of Specification D3699 and having a specific gravity of 0.80060.025at 25C, as determined in accordance with Practice D1298.7. Sampling7.1 Obtain a sample of the felt in accordance with Practice D585.8. Test Specimen8.1 From each test unit of the sample cut two sets of six test specimen st
16、rips, each strip measuring 51 by 127 6 13 mm 2 by5 6 12 in. with the longer side parallel to the machine direction of the sheet.9. Procedure9.1 Place a set of strips in the tared weighing container and expose them, uncovered, for at least 1 but not more than 2 h in anoven, the interior of which is m
17、aintained at a temperature of 105 6 3C. Keep the felt strips flat. Do not fold, roll, or distort themin any way. Handle the six strips as a unit in all of the following operations.9.2 Remove the strips in the weighing container from the oven and place them, with the container still uncovered, in a d
18、esiccatorto cool.9.3 After cooling, rapidly close the container and weigh it with enclosed strips to the nearest 10 mg to obtain the net weightof the dry strips.9.4 Insert a wire hook in one corner of the strips and immerse them at once in a vertical position in 1000 mL of kerosine at 256 1C in the
19、glass vacuum vessel. Apply a vacuum of at least 700 mm Hg to the vessel containing the strips and hold it underthese conditions for 15 min or for 5 min after the bubbles cease to come from the felt strips, whichever period is longer. Removethe felt strips from the kerosine and let them drain in the
20、machine direction of the felt for 3 min 6 1 s, allowing the lower cornerof each strip to touch the edge of the kerosine container.9.5 Return the soaked strips to their weighing container, close the container, and determine the combined weight of the stripsand the absorbed kerosine. (WarningCare shou
21、ld be exercised in the use of kerosine because it is flammable. Do not exposethe material and its vapors to open flame or electrical spark.)10. Calculation10.1 Calculate the kerosine number as follows:Kerosine number5b/a! 21c (1)where:a = weight of dry felt in g,b = weight of dry felt plus absorbed
22、kerosine in g, andc = specific gravity of the kerosine.NOTE 1Kerosine Percent can be calculated by multiplying Kerosine number by 100 %.11. Report11.1 Report the kerosine number as the average of two determinations, to three significant figures.12. Precision and Bias12.1 The following criteria shall
23、 be used for judging the acceptability of any result (95 % confidence level):12.1.1 RepeatabilityDuplicate results by the same operator should not be considered suspect unless they differ by more than2.5 %.12.1.2 ReproducibilityReproducibility has not been determined.12.1.3 BiasThe bias of this test
24、 method has not been determined.D6136/D6136M 15213. Keywords13.1 kerosine number; unsaturated (dry) felt; unsaturated roofing feltASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard a
25、re 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 technical committee and must be reviewed every five years andif not
26、 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 consideration at a meeting of theresponsible technical committee, which yo
27、u 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 Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United
28、 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:/ 153
