1、Designation: D 2065 03Standard Test Method forDetermination of Edge Performance of Composite WoodProducts Under Surfactant Accelerated Moisture Stress1This standard is issued under the fixed designation D 2065; the number immediately following the designation indicates the year oforiginal adoption o
2、r, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method is intended to serve as a means formeasurement of swelling a
3、nd cracking of the coated oruncoated edge of a composite wood substrate that has beensubjected to wetting by a test solution containing surface activeagent.1.2 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationonly.1.3 This standard d
4、oes 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 Documents2.1 ASTM St
5、andards:D 661 Test Method for Evaluating Degree of Cracking ofExterior Paints2E 177 Practice for Use of the Terms Precision and Bias inASTM Test Methods3E 691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method33. Terminology3.1 Definitions of Terms Specific t
6、o This Standard: Descrip-tion of Terms Specific to This Standard:3.1.1 crack ratinga numerical value on a scale from 1 to10, with 10 representing no evidence of cracking of the edge(see Test Method D 661).3.1.2 composite wood productsboards or other structuralor decorative materials manufactured fro
7、m wood fibers, flakesor strands and various resin binders consolidated under heat, orpressure, or both.4. Summary of Test Method4.1 A surfactant solution is placed in a tray that contains asponge. A preweighed and calipered panel with a coated edgeis placed with the edge in contact with the surfacta
8、nt saturatedsponge for 2 h. The exposed panel is blotted dry, reweighed,recalipered, and inspected for edge cracking. Percentageweight and thickness changes are calculated and recorded.Edge cracking is rated in accordance with Test Method D 661and recorded.5. Significance and Use5.1 This test method
9、 provides a measure of the dimensionalstability and integrity of the coated edge of various compositewood products under accelerated moisture stress. It is widelyused as an indicator or predictor of the anticipated performanceof composite wood products during exterior exposure. It maybe used for dev
10、elopmental evaluation of coatings, substrates, orboth. It may also be useful for quality control or monitoring ofthe production of coated or uncoated composite wood prod-ucts.6. Apparatus6.1 Wide Flat Tray or Pan, suitable to contain the requirednumber of sponges and test boards. The sides must be h
11、ighenough to safely contain at least 6 mm (14 in.) of solution.6.2 Rack or Holder, suitable to support the required numberof test boards at the nominal 60 angle.6.3 Micrometer or Vernier Caliper, of sufficient capacity forthe board thickness to be measured and capable of 0.1 mmaccuracy.6.4 Balance,
12、with sufficient capacity (typically 400 g) and0.01 g accuracy.6.5 Suitable Saw, for cutting of samples.6.6 Common Household Cellulose Sponges, cut to suitablesize.7. Materials7.1 A sufficient supply of test solution.7.2 Appropriately identified test boards cut to proper size.1This test method is und
13、er the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.52 on Factory Coated Wood Products.Current edition approved Oct. 1, 2003. Published November 2003. Originallyapproved in 1991. Last previous edition
14、 approved in 1996 as D 2065 96.2Annual Book of ASTM Standards, Vol 06.01.3Annual Book of ASTM Standards, Vol 14.02.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.8. Hazards8.1 When using saws, wear goggles, dust mask, and useproper
15、machine safeguards to prevent injury.9. Procedure9.1 See Fig. 1.9.2 Make the required test solution.4Pour solution into thetray to saturate all sponges, and allow to reach room tempera-ture. A 6-mm (14 -in.) depth of solution in the tray works well.9.3 Cut board specimens to a suitable size. A 10.2-
16、cm (4-in.)by 12.7-cm (5-in.) size has been found to be convenient. The10.2-cm (4-in.) dimension should be the coated edge. Prepa-ration of triplicate specimens is recommended.9.4 Measure thickness of the samples along the edge to betested. Three measurements at 2.54-cm (1-in.) intervals (Fig. 2)are
17、recommended for a 10.2-cm (4-in.) specimen. Recordresults.9.5 Weigh the samples to the nearest 0.01 g and record.9.6 Place boards in the tray on sponges as noted in Fig. 1. Ifcoated edges are to be tested, note that the sponges must benarrower than the length (nominally 10.2 cm or 4 in.) of theconta
18、cting coated edges to prevent contact of the solution withthe uncoated edges of the samples. Sponges 9.0-cm (3.5-in.)wide have been used successfully. For the same reason, thecoated face of the board must rest against the sponge at a 60angle to prevent contact of the solution with the uncoated backo
19、f the board.9.7 The test duration is 2 h. After 2 h, remove the boards andblot the edges dry with paper towels.9.8 Observe and record changes as follows:9.8.1 Visually inspect the edges for cracks and record thecrack rating in accordance with Test Method D 661. Repeat theobservation 48 h later.9.8.2
20、 Remeasure the thickness of the boards at the samespots measured in 4.4. Record the percent change at each spot,9.8.3 Reweigh the boards and record the weight gain andpercent weight gain, and9.8.4 Calculate averages and standard deviations for thepercent thickness change and percent weight gain.10.
21、Precision and Bias10.1 PrecisionAn interlaboratory study of CompositeWood Product surfactant accelerated moisture stress was con-ducted in accordance with Practice E 691 in seven laboratorieswith five materials, with each laboratory obtaining six testresults for each material (see Table 1).10.1.1 Th
22、e terms repeatability limit and reproducibilitylimit in Table 1 are used as specified in Practice E 177.10.2 BiasSince there is no accepted reference material,method, or laboratory suitable for determining the bias for theprocedure in this test method, no statement on bias is beingmade.4Common test
23、solutions such as 1.0 % of an ethoxylated alkylphenol, nonionicwith hydrophile lipophile balance (HLB) of 13.5 is made using warm, (over 120F(49C), distilled, or deionized water. Historically, Triton X-100 has been used, butwith this revision Turgitol 15-S-9 was used. Refer to McCutcheons Emulsifier
24、s andDetergents, 1996, McCutcheon Publishing Co., 175 Rock Rd., Glen Rock, NJ07452.FIG. 1 Test Apparatus Side ViewFIG. 2 Specimen DimensionsD206503211. Keywords11.1 accelerated moisture stress; detergent test; wood orcomposite-woodASTM International takes no position respecting the validity of any p
25、atent rights asserted in connection 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 revisi
26、on at any time by the responsible 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 co
27、mments will receive careful consideration 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 copyrigh
28、ted 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
29、-mail); or through the ASTM website(www.astm.org).TABLE 1 Interlaboratory StudyMaterial AverageRepeatablility,StandardDeviation, SrReproducibility,StandardDeviation, SRRepeatabilityLimit, YReproducibilityLimit, RA 12.8886 2.0878 5.8050 5.8458 16.2540B 9.7200 0.6498 3.5835 1.8195 10.0338C 16.8257 2.1491 7.4174 6.0175 20.7688D 9.1943 2.0814 6.2392 5.8279 17.4696E 14.3286 2.0616 5.4152 5.7724 15.1626F 11.8229 3.7899 6.3353 10.6117 17.7389D2065033
