1、Designation: C 1559 04 (Reapproved 2009)Standard Test Method forDetermining Wicking of Fibrous Glass Blanket Insulation(Aircraft Type)1This standard is issued under the fixed designation C 1559; the number immediately following the designation indicates the year oforiginal adoption or, in the case o
2、f revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method covers a laboratory procedure forevaluating the tendency of, aircraft type, f
3、ibrous glass blanketinsulation to wick water.1.2 The wicking characteristics of materials may be affectedby environmental conditions such as temperature and humidity.Values obtained as a result of this test method may notadequately describe the wicking characteristics of materialssubject to conditio
4、ns other than those indicated in the testmethod. (See Specification C 800.)1.3 The values stated in inch-pound units are to be regardedas standard. The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This s
5、tandard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.
6、1 ASTM Standards:2C 168 Terminology Relating to Thermal InsulationC 390 Practice for Sampling and Acceptance of ThermalInsulation LotsC 800 Specification for Fibrous Glass Blanket Insulation(Aircraft Type)E 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Meth
7、od3. Terminology3.1 DefinitionsTerminology C 168 shall be considered asapplying to the terms used in this specification.3.1.1 wickingthe infiltration of a wetting liquid into afibrous glass blanket by capillary attraction.4. Summary of Test Method4.1 The insulation is suspended in de-ionized or dist
8、illedwater so that the bottom of the specimen is submerged to oneinch below the water surface; distance of wicking is notedevery 24 h for 96 h and then again at the end of 168 h.5. Significance and Use5.1 The tendency of the insulation toward wicking canresult in an increase in weight and a resultan
9、t potentialdegradation in the properties of the insulation.6. Apparatus6.1 As described in the Procedure section of this testmethod.6.2 Steel Rule, accurate to 6 0.05 in. (1 mm).7. Sampling, Test Specimens, and Test Units7.1 Six specimens shall be tested for each procedure, cutwith the axis parallel
10、 to the length and six cut with the axisperpendicular to the length from a representative package.(SeePractice C 390.)7.2 The specimens shall be 1- by 6-in. (25.4- by 152.4-mm)by full sample thickness.7.3 The insulation shall be tested without facing or jacket-ing.8. Conditioning8.1 As described in
11、the Procedure section of this testmethod.9. Procedure AWicking as Received9.1 Condition specimens for at least 24 h at 73 6 4F (23 62C) and 50 6 5 % relative humidity.9.2 With fine wire, fasten loosely six specimens (three cutwith the axis parallel to the length and three cut with the axisperpendicu
12、lar to the length)3to a grease-free 0.025 to 0.035 in.(0.64 to 0.89 mm) 8 by 8 mesh stainless steel wire screen.Position this assembly in an upright position so the ends of thespecimens touch the bottom of the container. The 6-in. sample1This test method is under the jurisdiction ofASTM Committee C1
13、6 on ThermalInsulation and is the direct responsibility of Subcommittee C16.33 on InsulationFinishes and Moisture.Current edition approved May 1, 2009. Published August 2009. Originallyapproved in 2003. Last previous edition approved in 2004 as C1559 04.2For referenced ASTM standards, visit the ASTM
14、 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.3An alternative attachment method would be to attach the specimens to the wiremesh using a hot melt adhesiv
15、e (at approximately12 in. below and above the waterline, and approximately12 in. from the top of the specimen).1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.dimension is in a perpendicular direction to the water surface.The specime
16、ns must not touch each other or the sides of thecontainer (Fig. 1).9.3 Pour de-ionized (or distilled) water into the container toa height of 1-in. (25-mm) (Optional: add dye4to the water1to 2 drops per liter to the water to facilitate marking the extentof wicking). The water shall be at 68 6 4F (20
17、6 2C).9.4 Position the remaining six specimens similarly in an-other container. Pour de-ionized (or distilled) water into thiscontainer to a height of 1-in. (25-mm), again adding dye.Maintain the temperature of this water at 120 6 5F (50 62C) by using a hot plate.9.5 Note distance of wicking above w
18、ater surface with steelrule every 24 h in each container for the first 96 h. Then noteagain after 168 h. Replenish the water daily to maintain waterlevel.10. Procedure BWicking after Aging10.1 Condition a sample of insulation 8- by 14-in. (203- by356-mm) in a forced air circulating oven at 160 6 5F
19、(71 63C) for two weeks or at least 336 h. The aged specimen shallbe tested according to procedure outlined in 9.2-9.5.11. Procedure CWicking after Leaching11.1 Condition a sample of insulation 8- by 14-in. (203- by356-mm) by submerging in an immersion tank of de-ionized(or distilled) water maintaine
20、d at a temperature of 80 to 85F(27 to 29C) for a period of at least 24 h. The tank shall be ofsuch a shape and size that the specimen can be submergedtherein with all surfaces of the specimen having full access tothe water. Ratio of specimen to water shall not be less than 1to 100 by weight. A conti
21、nuous flow of water shall be suppliedto the bottom of the container at the above temperature at a rateof five changes per hour. At the end of the leaching period, thespecimen shall be removed from the water, air dried to aconstant weight and weighed. The leached specimen shall betested according to
22、procedure outlined in 9.2-9.5.12. Calculation or Interpretation of Results12.1 Determine the amount of wicking by measurementwith a steel rule as described in 6.2.12.2 Wetting of the submerged portion of the wickingspecimens is permissible. Wicking is the distance of wettingabove the water surface (
23、average value of center-point mea-surements of three sides of the wicking specimen-side adjacentto screen surface should not be measured).12.3 Beads of water are not to be construed as a condition ofwetting. The formation of beads of water on the insulationsurface indicates water repellency.12.4 Sur
24、face wetting is not considered wicking, but cannotbe greater than 1 in. (25.4 mm) when measured from the waterline.13. Report13.1 The report shall include the following:13.1.1 Name and any additional identification of the mate-rial tested,13.1.2 Thickness of the material,13.1.3 Number of specimens t
25、ested, and13.1.4 The average wicking height according to each con-dition.14. Precision and Bias14.1 Inter-laboratory Test ProgramAn inter-laboratorystudy was run in which randomly selected test specimens ofone material (0.42 pcf by 1 in.) were tested for wicking in eachof five laboratories with each
26、 laboratory testing three speci-mens per configuration. Practice E 691 was followed for thedesign and analysis of the data.Asingle laboratory provided allof the test specimens. The details are given in ASTM ResearchReport RR: C16-10285.14.2 Test ResultThe precision information shown belowin units of
27、 measurement noted is for the comparison of onematerial and based on an average of 3 tests.14.3 PrecisionSee Table 1.14.4 BiasNo information can be presented on the bias ofthe procedure in Test Method C 1159 for measuring wicking,because no material having an accepted reference value isavailable.4Dy
28、e should be tested to insure that the surface tension of water is not reduced(approximately 72 dynes/ cm).5Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR: C16-1028.FIG. 1 Typical Specimen Mounting for Wicking TestTABLE 1 Water R
29、epellency Round Robin Statistical ResultsUsing Standard E 691CellAverageStandardDeviationof the CellAveragesRepeatabilityStandardDeviationReproducibilityStandardDeviationRepeatabilityLimitAReproducibilityLimitBX bar SxSrSRrR0.22 in. 0.11 0.07 0.11 0.18 0.30A95 % confidence = 2.8 SrB95 % confidence =
30、 2.8 SRC 1559 04 (2009)215. Keywords15.1 aircraft; aircraft insulation; fibrous glass insulation;wickingASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that
31、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 revised, either reapprove
32、d 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 you may attend. If you feel
33、 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 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).C 1559 04 (2009)3
