1、Designation:D 3400 85(Reapproved 1997)Standard Specification forLiquid Sodium Silicates1This standard is issued under the fixed designation D 3400;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
2、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 liquid sodium silicates used inthe formulation of alkaline soap and detergent compositions.1.2 This material may be hazard
3、ous if not properly man-aged.1.3 Precautionary information for the safe use,storage,anddisposal of this material should be preliminarily obtained fromsuppliers and others.1.4 In case of personal accident with this material,applyappropriate first aid,telephone the nearest Poison ControlCenter for ass
4、istance,and get medical attention immediately.2.Referenced Documents2.1 ASTM Standards:D 501 Test Methods for Sampling and Chemical Analysisof Alkaline Detergents23.Ordering Information3.1 Liquid sodium silicates shall be purchased by net weightbased on this specification and an agreement between th
5、epurchaser and the seller.In addition,specifications for specificgravity and viscosity may be imposed by agreement.4.Chemical Composition4.1 Liquid sodium silicates,as received,shall conform tothe requirements for chemical composition given in Table 1.5.General Requirements5.1 Liquid sodium silicate
6、s shall be liquids of water whitecolor having a slight turbidity and shall comprise several typesthat differ in their total alkalinity to total silica ratio.6.Sampling and Analysis6.1 The material shall be sampled and analyzed in accor-dance with Test Methods D 501.The American Society for Testing a
7、nd Materials takes no position respecting the validity of any patent rights asserted in connectionwith 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
8、 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by the responsible technical committee and must be reviewed every five years andif not revised,either reapproved or withdrawn.Your comments are invited either for revision of this standard or for additional standardsand shoul
9、d be addressed to ASTM Headquarters.Your comments will receive careful consideration at a meeting of 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 Har
10、bor Drive,West Conshohocken,PA 19428.This standard is copyrighted by ASTM,100 Barr Harbor Drive,West 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(f
11、ax),or serviceastm.org(e-mail);or through the ASTM website(http:/www.astm.org).1This specification is under the jurisdiction ofASTM Committee D-12 on Soapsand Other Detergents and is the direct responsibility of Subcommittee D 12.14 onSpecifications for Analysis of Inorganic Alkaline Detergents.Curr
12、ent edition approved May 31,1985.Published July 1985.Originallypublished as D 3400 75.Last previous edition D 3400 75(1980).2Annual Book of ASTM Standards,Vol 15.04.TABLE 1 Chemical RequirementsRatio Na2O:SiO2(average)Type I1:2.0Type II1:2.4Type III1:3.2minmaxminmaxminmaxTotal alkalinity to methyl o
13、rangeas Na2O,%14.315.113.514.38.59.3Total silica as SiO2,%28.830.032.533.728.429.61Copyright 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.
