ASTM_D_5062_-_09.pdf

Designation:D506209Standard Test Method forResin Solution Dilutability by Volumetric/GravimetricDetermination1This standard is issued under the fixed designation D5062;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.1.Scope*1.1 This test method covers both volumetric and gravimetricdetermination of resin solution dilutability which gives anumerical value for the overall solubility of the resin expressedas percent dilutability.1.2 This test method is applicable only if the test solution isof sufficient clarity to allow accurate visual judgement of theend point and of low enough viscosity for efficient mixing totake place.1.3 This test method is primarily for,but not limited to,resins used in the printing ink industry.1.4 The percent solvent tolerance of a resin can be deter-mined using this test method if the solvent in the resin solutionand the dilution solvent are the same.1.5 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.6 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:2D1725 Test Method for Viscosity of Resin SolutionsE1 Specification for ASTM Liquid-in-Glass Thermometers3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 resin solution dilutability,nthe maximum amount ofdiluent tolerated to reach a defined degree of turbidity;beyondthis point,resin precipitation will occur.4.Summary of Test Method4.1 Asample of resin solution is weighed into a glass beakerthat is placed over a piece of 10 point print(standardnewspaper print).4.2 The dilution solvent is added slowly from a buret untilthe newsprint can no longer be read(cloud point)when viewedfrom the top of the beaker.4.3 The solvent dilutability is calculated by weight,orvolume.5.Significance and Use5.1 This test method provides a means for resin producersand users as well as solvent and varnish manufacturers to ratevarious types of resins for solubility by assigning a numericaldilutability value.This percent dilutability value can be used todifferentiate resin types for end users and can be utilized as aquality control tool by resin manufacturers.5.2 When running a series of these tests,the same lot orbatch of dilution solvent must be used throughout to ensurereproducible results.6.Apparatus6.1 Glass Beakers,150-mL(51-mm diameter,79-mmheight)and 250-mL(65-mm diameter,90-mm height).6.2 Graduated Buret,50 mL.6.3 Constant Temperature Water Bath at 25C.6.4 Thermometer,0 to 40C range with subdivisions of0.5C conforming to Specification E1.6.5 Magnetic Stirring Bar and Stirring Plate or StirringRod.6.6 Sheet of Newsprint,with 10-point(Note 1),No.31old-style type,lower case letters 1.5-mm high with normalspacing,upper and lower case with no italicized or bold letters.NOTE1The term point is derived from the American Point System.72 points=1 in.1This test method is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings,Materials,and Applications and is the direct responsibility ofSubcommittee D01.37 on Ink Vehicles.Current edition approved March 1,2009.Published April 2009.Originallyapproved in 1990.Last previous edition approved in 2001 as D5062 96(2001).DOI:10.1520/D5062-09.2For 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 7.Reagents and Materials7.1 Resin SolutionAresin solution prepared in such a wayas to provide an accurate percent solids and to have sufficientclarity to allow accurate visual judgment of the cloud point.The solution must also have low enough viscosity at 25C toallow efficient mixing during the addition of the dilutionsolvent.7.2 Dilution SolventThe dilution solvent for this test istypically,but not limited to,a hydrocarbon.The dilutionsolvent should have minimal loss by evaporation at roomtemperature,and be agreed upon between the purchaser and thesupplier.7.3 Standard Ink Oils.8.Procedure8.1 Preparation of Resin Solution:8.1.1 The resin solution may be prepared by either heatingthe resin/solvent combination as described in Test MethodD1725,or dispersing using a high-speed mixer such as ablender.Please note results may vary dependent on method ofpreparation.8.1.2 The rat