ASTM_D_3224_-_02.pdf

Designation:D 3224 02Standard Test Method forWater Solubility of Auxiliary Solvent for Wood PreservingSolutions1This standard is issued under the fixed designation D 3224;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 test method covers the determination of the watersolubility of an organic solvent used as an auxiliary orcosolvent for pentachlorophenol or other biocides in woodpreserving solutions.Conversely,the solvent solubility in thewater may also be determined.Auxiliary solvents are used toeither formulate high concentrations of penta or other biocidesfor shipment of liquid concentrate for subsequent dilution withan oil,or to boast the biocide solvency of the petroleumsolution when mixed for treating.1.2 This standard does not purport to address all of thesafety concerns,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:D 1193 Specification for Reagent Water2D 3225 Specification for Low-Boiling Hydrocarbon Sol-vent for Oil-Borne Preservatives33.Summary of Test Method3.1 Fill the 100 mL graduated cylinder with 50 mL of waterand 50 mL of the solvent.After 10 inversions,allow to standfor 30 min.Then,record the volume at the interface.4.Significance and Use4.1 Water solubility of auxiliary solvents is important inpreventing emulsions at the treating plant,and to preventprecipitation of the biocide from solution due to loss ofsolvency(see Specification D 3225).5.Apparatus5.1 Graduated Cylinder,100-mL,with glass stopper.6.Reagents6.1 Purity of WaterUnless otherwise indicated,referencesto water shall be understood to mean reagent water conformingto Specification D 1193.7.Procedure7.1 Bring the water,solvent,and glassware to temperatureequilibrium at 75 6 1F(23.9 6 0.5C).7.2 Add 50.0 mL of water to the cylinder.7.3 Add solvent to the 100-mL mark.7.4 Stopper the cylinder and invert ten times,and allow tostand 30 min.7.5 Read and record the volume at the interface between thewater and solvent layers.8.Calculation8.1 In most cases the auxiliary solvent will be lighter thanwater,will float,and will be the upper layer in this test.Ifheavier than water,reverse the definitions of calculations.8.2 If the volume at the interface is more than 50.0 mL,thesolvent is soluble in water.Calculate the percent solubility,S,as follows:S 5A 2 50.0!3 2(1)where:A=observed interface volume,mL.8.3 If the volume at the interface is less than 50.0 mL,thewater is soluble in the solvent.Calculate the percent solubility,S,as follows:S 550.0 2 A!3 2(2)9.Precision and Bias9.1 PrecisionNo information can be presented on theprecision of the procedure because no research has beenperformed to determine repeatability or reproducibility.How-ever,the results of this test should not be considered suspectunless duplicate determinations result in a difference of greater1This test method is under the jurisdiction of ASTM Committee D07 on Woodand is the direct responsibility of Subcommittee D 07.06on Treatments for WoodProducts.Current edition approved Sept.10,2002.Published November 2002.Originallypublished as D 3224 73.Last previous edition D 3224 95.2Annual Book of ASTM Standards,Vol 11.01.3Annual Book of ASTM Standards,Vol 04.10.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.than one(1)percentage point(as expressed in the result of thecalculation in Section 8).9.2 BiasNo information can be presented on the bias ofthe procedure because the results are dependent on the prop-erties of the solvent being tested.10.Keywords10.1 auxiliary solvent;preservative;water solubilityASTM 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 Internatio