ASTM_D_1133_-_13.pdf

Designation:D113313Standard Test Method forKauri-Butanol Value of Hydrocarbon Solvents1This standard is issued under the fixed designation D1133;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()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1.Scope*1.1 This test method covers the determination of the relativesolvent power of hydrocarbon solvents used in paint andlacquer formulations.This test method is suitable for use withsolvents having an initial boiling point over 40C and a drypoint under 300C when determined in accordance with theprocedures in Note 1.NOTE1Test Method D86 is used to determine the initial boiling pointand dry point for mineral spirits and similar petroleum solvents.TestMethod D1078 is used for pure compounds and narrow boiling range cuts.1.2 For purposes of determining conformance of an ob-served or a calculated value using this test method to relevantspecifications,test result(s)shall be rounded off“to the nearestunit”in the last right-hand digit used in expressing thespecification limit,in accordance with the rounding-off methodof Practice E29.1.3 For specific hazard information and guidance,consultthe suppliers Material Safety Data Sheet.1.4 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.5 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:2D86 Test Method for Distillation of Petroleum Products atAtmospheric PressureD304 Specification forn-Butyl Alcohol(Butanol)D841 Specification for Nitration Grade TolueneD1078 Test Method for Distillation Range of Volatile Or-ganic LiquidsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3.Terminology3.1 Definitions:3.1.1 kauri-butanol value,nof a solvent,the volume inmillilitres at 25C of the solvent,corrected to a definedstandard,required to produce a defined degree of turbiditywhen added to 20 g of a standard solution of kauri resin innormal butyl alcohol.3.1.1.1 DiscussionThe kauri resin solution is standardizedagainst toluene,which has an assigned value of 105,and amixture of 75%n-heptane and 25%toluene on a volumebasis,which has an assigned value of 40.4.Significance and Use4.1 The kauri-butanol value is used as a measure of solventpower of hydrocarbon solvents.High kauri-butanol valuesindicate relatively strong solvency.5.Apparatus5.1 Water Bath,capable of being maintained at 25 6 5C.Alternatively,a temperature controlled environment main-tained at 25 6 5C may be used.5.2 Volumetric Flask,200-mL capacity.5.3 Erlenmeyer Flask,250-mL capacity.5.4 Sample Dispensing Device,Buret,of at least 50-mLcapacity,or equivalent,that is capable of accurately determin-ing the volume dispensed to the nearest 0.1 mL.5.5 Print SpecimenA sheet of white paper having on itblack 10 or 12 point print,No.31 Bruce old style type.NOTE2Text in this published standard is satisfactory to use as printspecimen.6.Reagents6.1 Purity of ReagentsReagent grade chemicals shall beused in all tests unless otherwise specified.Unless otherwise1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.35 on Solvents,Plasticizers,and Chemical Intermediates.Current edition approved June 1,2013.Published July 2013.Originally approvedin 1950.Last previous edition approved in 2010 as D1133 10.DOI:10.1520/D1133-13.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 indicated,it is intended that all reagents shall conform to thespecifications of the Committee on Analytical Reagents of theAmerican Chemical Society,where such specifications areavailable.3Other grades may be used,provided it is firstascertained that the reagent is of sufficiently high purity topermit its use without lessening the accuracy of the determi-nation.6.2 Kauri-Butanol Solution4Place in a 3-L flask 400 g ofclean,pale,bold kauri resin of Grade XXXX,XXX,or XXground to pea-size or smaller.Add,while agitating vigorously,2000 g of n-butyl alcohol,(conforming to Specification D304).Shake on a mechanical sha