1、(lb Designation:D 2021-65(Reapproved 1995)Standard Specification for Neutral Detergent,40 Percent Alkylbenzene Sulfonate Type This standard is issued under the fixed designation D 2021;the number immediately following the designation indicates the year of original adoption or,in the case of revision
2、,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope 1.1 This specification covers neutral detergent(approxi-mately 40 9%alkylbenzene sulfonate)commonly sold for in
3、dustrial applications.2.Referenced Documents 2.1 ASTM Standards:or powder form,as requested by the purchaser.5-Chemical Composition 5.1 Neutral detergent,40%alkylbenzene sulfonate type,shall conform to the requirements as to chemical composi-tion prescribed in Table 1,based on product as received.6.
4、Methods of Sampling D 1568 Test Methods for Sampling and Chemical 6.1 Sample the material in accordance with Test Methods of Alkylbenzene Sulfonates*D 1568.D 168 1 Test Method for Synthetic Anionic Active Ingre-dient in Detergents by Cationic Titration Procedure2 7.Keyword 7.1 neutral detergent 3.Or
5、dering Information 3.1 The material shall be purchased by net weight at the TABLE 1 Chemical Reauirementc time of packaging.ASTM Test MethodA Property Limit Sodium alkylbenzene sulfonate,38 D 1681 Combining weight of sodium alkyl-D 1681 Total matter insoluble in alcohol 61 D 1568 min,X benzene 4.Gen
6、eral Requirements shall be free flowing,readily soluble in hot or cold water,and shail foam voluminously under acid or alkaline conditions,and in hard or soft water.It may be in bead,granule,flake,4.1 Neutral detergent,40?6 alkylbenzene sulfonate type,350 r 15 calculated as NaCI,max,2 Moisture,max,W
7、 4 D 1568 Neutral oil,max,%1 D 1568 D 1568 6.0 to 9.0 as agreed upon by pH,1%colution,25OC Density This specification is under the jurisdiction of ASTM Committee D I 2 on Soaps and Other Detergents and is the direct responsibility of Subcommittee D12.22 on Specifications for Soaps and Synthetic Dete
8、rgents.Current edition approved Aug.31,1965.Published October 1965.Originally the purchaser and the supplier published as D 202 1-62.Last previous edition D 202 1-62 T.Annual Book ofASTM Siandards,Vol 15.04.A These designations refer to the test methods that appear in the Annual Book of ASTM Standar
9、ds,Vol 15.04.The American Society for Testing and Materials takes no position respecting the validity of any patent rights asserted in connection with anyitern mentioned in this standard.Users of this standard are expressly advised that determination of the validity of any such patent rights,and the
10、 risk of 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 and if not revised,either reapproved or withdrawn.Your comments are invited either for revision of
11、this standard or for additional standards and should be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of the responsible technical committee,which you may attend.If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards,1916 Race St.,Philadelphia,PA 19103.197 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.