ASTM D1488-2000(2006) Standard Test Method for Amylaceous Matter in Adhesives《胶粘剂中淀粉物质的标准试验方法》.pdf

1、Designation: D 1488 00 (Reapproved 2006)Standard Test Method forAmylaceous Matter in Adhesives1This standard is issued under the fixed designation D 1488; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A

2、 number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1. Scope1.1 This test method covers the determination of the pre

3、s-ence or absence of amylaceous (starch-like) material inphenol-, resorcinol-, and melamine-resin adhesives.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 does not purport to address all of thesafety conc

4、erns, 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 Standards:2D 907 Terminology of Adhesives3. Termin

5、ology3.1 Definitions Many terms in this test method are definedin Terminology D 907.4. Summary of Test Method4.1 A reagent solution is added to the adhesive in questionwhich causes any starch-like material to become insoluble. Theresultant material then changes color when another reagent isadded if

6、any starch-like matter is present.5. Significance and Use5.1 This test method is used to determine if a melamineresin, a phenol, or a resorcinol adhesive contains any starch-like filler, the presence of which could affect water resistanceor strength, or both.6. Reagents6.1 Iodine Test SolutionAdd 5

7、g (0.18 oz) of iodine and 5g of potassium iodide to 100 mL (3 oz) of distilled water.6.2 Acetic AcidEthyl Alcohol SolutionAdd 20 parts ofglacial acetic acid and 20 parts of 95 % ethyl alcohol to 60parts of distilled water by volume.7. Sampling7.1 Except in special cases, take a composite of the samp

8、leof the adhesive when possible, from three or more separatecontainers, chosen at random. Also, take samples from con-tainers that appear to be nonrepresentative, and test suchsamples separately. Before a sample is taken, thoroughly mixthe contents of the container if there is a tendency for themate

9、rials to separate. Place the samples immediately in airtightcontainers and transport to the testing laboratory in thesecontainers. Take precautions to reduce evaporation or drying toa minimum.8. Procedure8.1 Phenol and Resorcinol AdhesivesWeigh 0.5 g (0.018oz) of thoroughly mixed adhesive into a sma

10、ll-diameter testtube. Add 5 mL (0.15 oz) of 95 % ethyl alcohol. Shakethoroughly, allow the insoluble matter to settle, and decant thesupernatant liquid. Repeat twice more with the ethyl alcoholand three times with distilled water. After the final decantation,add one drop of the iodine solution to th

11、e residue. A darkeningof the residue denotes a positive test for the presence ofamylaceous matter.8.2 Melamine ResinsUse the same procedure as specifiedin 8.1 except substitute an acetic acid-ethyl alcohol solution.When the melamine adhesive is supplied with separate hard-ener, use ethyl alcohol for

12、 the unmixed hardener.9. Report9.1 Report the following information:9.1.1 Complete identification of the adhesive tested, includ-ing type, source, manufacturers code number, lot or batchnumber, condition, and date, and9.1.2 Positive or negative reaction to the iodine test.1This test method is under

13、the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.30 on WoodAdhesives.Current edition approved Oct. 1. 2006. Published October 2006. Originallyapproved in 1957. Last previous edition approved in 2000 as D 1488 00.2For referenced ASTM standards, v

14、isit the 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

15、-2959, United States.10. Precision and Bias10.1 No information is presented about either the precisionor bias of Test Method D 1488 for measuring the presence orabsence of amylaceous matter in adhesives since the result isnonquantitative.11. Keywords11.1 amylaceous matter; iodine test; melamine; phe

16、nol;resorcinol; starch-likeASTM 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 determination of the validity of any such patent rights, and the riskof infri

17、ngement 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 reapproved or withdrawn. Your comments are invited either for revision of this standar

18、d 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 that your comments have not received a fair hearing you shouldmake your view

19、s 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).D 1488 00 (2006)2