ASTM_D_1624_-_71_2000.pdf

Designation:D 1624 71(Reapproved 2000)Standard Specification forAcid Copper Chromate1This standard is issued under the fixed designation D 1624;the number immediately following the designation indicates the year oforiginal adoption or,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 specification covers acid copper chromate,either inthe solid granulated form,or in solution,for use in thepreservative treatment of wood.2.Referenced Documents2.1 ASTM Standards:D 1627 Test Method for Chemical Analysis of Acid CopperChromate22.2Other Standard:AWPA P5 Standards for Waterborne Preservatives33.Composition and Properties3.1 Acid copper chromate in solid form or treating solutionshall have the following composition,subject to the specifiedlimits:MinimumNominalCopper,calculated as CuO,%28.031.8Chromium,calculated as Cr2O3,%63.368.23.2 The preservative or treating solution may be made up ofwater-soluble compounds selected from the following group:Bivalent copperfor example,copper sulfate,basic copper carbonate,copper-oxideHexavalent chromiumfor example,potassium or sodium dichromate,chro-mium trioxide3.3 If dichromate is used as the principal source of chro-mium,either chromic acid or acetic acid may be used to adjustthe pH of treating solution to conform to 3.4.3.4 pHThe pH of a treating solution shall be not less than2.0 nor more than 4.2.4.Chemical Analysis4.1 The material and its solutions shall be analyzed inaccordance with Methods D 1627.5.Keywords5.1 acid copper chromateASTM 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 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by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters.Your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 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 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).1This specification is under the jurisdiction of ASTM Committee D-7 on Woodand is the direct responsibility of Subcommittee D07.06 on Treatments for WoodProducts.Current edition effective Feb.24,1971.Originally issued 1959.ReplacesD 1624 61(1968).This specification is identical in substance with the Standards for Acid CopperChromate(ACC)in Section 1 of the American Wood-Preservers AssociationStandards for Water-Borne Preservatives(P5-83).Acknowledgment is made to theAmerican Wood-Preservers Association for its development of the subject mattercovered in this specification.2Annual Book of ASTM Standards,Vol 04.10.3Available from American Wood-Preservers Associations,3246 Fall CreekHighway,Suite 190,Granbury,TX 76049.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.