ASTM D2065-2003(2011) Standard Test Method for Determination of Edge Performance of Composite Wood Products Under Surfactant Accelerated Moisture Stress《 在表面活性剂加速水分应力作用下测定复合木材产品的边.pdf

1、Designation: D2065 03 (Reapproved 2011)Standard Test Method forDetermination of Edge Performance of Composite WoodProducts Under Surfactant Accelerated Moisture Stress1This standard is issued under the fixed designation D2065; the number immediately following the designation indicates the year ofori

2、ginal adoption or, in the case of 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 is intended to serve as a means formeasuremen

3、t of swelling and 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

4、This standard 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 Docum

5、ents2.1 ASTM Standards:2D661 Test Method for Evaluating Degree of Cracking ofExterior PaintsE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test Method3. Terminology3.1 Definitions of Terms

6、Specific to This Standard: Descrip-tion of Terms Specific to This Standard:3.1.1 crack rating, na numerical value on a scale from 1to 10, with 10 representing no evidence of cracking of the edge(see Test Method D661).3.1.2 composite wood products, nboards or other struc-tural or decorative materials

7、 manufactured from wood fibers,flakes or strands and various resin binders consolidated underheat, or pressure, 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

8、with the surfactant 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 D661and recorded.5. Significance and Use5.1

9、This test method 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 ma

10、ybe used for developmental 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

11、 sides must be highenough 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 mmaccura

12、cy.6.4 Balance, 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.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applicatio

13、ns and is the direct responsibility ofSubcommittee D01.52 on Factory Coated Wood Products.Current edition approved Nov. 1, 2011. Published November 2011. Originallyapproved in 1991. Last previous edition approved in 2003 as D2065 03. DOI:10.1520/D2065-03R11.2For referenced ASTM standards, visit the

14、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.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, Un

15、ited States.7. Materials7.1 A sufficient supply of test solution.7.2 Appropriately identified test boards cut to proper size.8. Hazards8.1 When using saws, wear goggles, dust mask, and useproper machine safeguards to prevent injury.9. Procedure9.1 See Fig. 1.9.2 Make the required test solution.3Pour

16、 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.A10.2-cm (4-in.)by 12.7-cm (5-in.) size has been found to be convenient. The10.2-cm (4-in.) dimension should be t

17、he 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 recommended for a 10.2-cm (4-in.) specimen. Recordresults.9.5 Weigh the samples to the nearest 0.01 g and r

18、ecord.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 thecontacting coated edges to prevent contact of the solution withthe uncoated edges of the samples. Sponges 9.0-cm

19、(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 backof the board.9.7 The test duration is 2 h.After 2 h, remove the boards andblot the edges dry with paper towel

20、s.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 D661. Repeat theobservation 48 h later.9.8.2 Remeasure the thickness of the boards at the samespots measured in 4.4. Record the percent change at each spo

21、t,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. Precision and Bias10.1 PrecisionAn interlaboratory study of CompositeWood Product surfactant accelerated moist

22、ure stress was con-ducted in accordance with Practice E691 in seven laboratorieswith five materials, with each laboratory obtaining six testresults for each material (see Table 1).10.1.1 The terms repeatability limit and reproducibilitylimit in Table 1 are used as specified in Practice E177.3Common

23、test 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 Emuls

24、ifiers andDetergents, 1996, McCutcheon Publishing Co., 175 Rock Rd., Glen Rock, NJ07452.FIG. 1 Test Apparatus Side ViewFIG. 2 Specimen DimensionsD2065 03 (2011)210.2 BiasSince there is no accepted reference material,method, or laboratory suitable for determining the bias for theprocedure in this tes

25、t method, no statement on bias is beingmade.11. Keywords11.1 accelerated moisture stress; detergent test; wood orcomposite-woodASTM 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

26、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 re

27、vised, 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 you

28、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 S

29、tates. 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

30、be secured from the ASTM website (www.astm.org/COPYRIGHT/).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 17.7389D2065 03 (2011)3