1、Designation:D 207 55(Reapproved 1995)e1Standard Specification forDry Bleached Lac1This standard is issued under the fixed designation D 207;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 parenth
2、eses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.e1NOTEKeywords were added editorially in May 1995.1.Scope1.1 This specification covers two grades of dry bleached lac,namely,regular and refined.NOTE1Dry bleached lac
3、 is also known as“bone-dry,”“bac-dry,”or“kiln-dry”bleached lac.The refined grade is bleached lac from whichpractically all the wax and insoluble matter has been removed during theprocess of manufacture.2.Referenced Documents2.1 ASTM Standards:D 29 Test Methods for Sampling and Testing Lac Resins23.P
4、roperties3.1 Dry bleached lac shall conform to the following require-ments:RegularRefinedMatter insoluble in specified hot1.00.2solvents,max,%Moisture,max,%6.06.0Wax,max,%5.50.2Matter soluble in water,max,%1.00.3Ash,max,%1.00.5RosinnonenoneCopalsnonenone4.Test Methods4.1 The material shall be sample
5、d and the properties enu-merated in this specification shall be determined in accordancewith Test Methods D 29.5.Keywords5.1 lac;lac;bleached;lac;bone dry;lac;refinedThe American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connectionwi
6、th any item mentioned in this standard.Users of this standard are expressly advised that determination of the validity of any suchpatent rights,and the risk of infringement of such rights,are entirely their own responsibility.This standard is subject to revision at any time by the responsible techni
7、cal committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of
8、 the responsibletechnical committee,which you may attend.If you feel that your comments have not received a fair hearing you should make yourviews known to the ASTM Committee on Standards,100 Barr Harbor Drive,West Conshohocken,PA 19428.This standard is copyrighted by ASTM,100 Barr Harbor Drive,West
9、 Conshohocken,PA 19428-2959,United States.Individualreprints(single or multiple copies)of this standard may be obtained by contacting ASTM at the above address or at 610-832-9585(phone),610-832-9555(fax),or serviceastm.org(e-mail);or through the ASTM website(http:/www.astm.org).1This specification i
10、s under the jurisdiction of ASTM Committee D-1 on Paintand Related Coatings,Materials,andApplications,and is the direct responsibility ofSubcommittee D01.33 on Polymers and Resins.Current edition approved Sept.12,1955.Published November 1955.Originallypublished as D 207 25.Last previous edition D 207 49.2Annual Book of ASTM Standards,Vol 06.03.1Copyright ASTM,100 Barr Harbor Drive,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superseded and replaced by a new version or discontinued.Contact ASTM International(www.astm.org)for the latest information.
