1、Designation: D 5062 09Standard Test Method forResin Solution Dilutability by Volumetric/GravimetricDetermination1This standard is issued under the fixed designation D 5062; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year o
2、f 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 anu
3、merical 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 m
4、ethod 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 as
5、standard. 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
6、applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2D 1725 Test Method for Viscosity of Resin SolutionsE1 Specification for ASTM Liquid-in-Glass Thermometers3. Terminology3.1 Definition of Term Specific to This Standard:3.1.1 resin solution dilutability,
7、nthe maximum amountof diluent tolerated to reach a defined degree of turbidity;beyond this 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 diluti
8、on 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 sol
9、vent 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
10、 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,50mL.6.3 Constant Temperature Water Bath at 25C.6.4 Thermo
11、meter, 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 o
12、r bold letters.NOTE 1The term point is derived from the American Point System.72 points=1in.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 editi
13、on approved March 1, 2009. Published April 2009. Originallyapproved in 1990. Last previous edition approved in 2001 as D 5062 96 (2001).2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume in
14、formation, refer to the standards Document Summary page onthe ASTM website.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Reagents and Materials7.1 Resin SolutionA
15、resin 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 So
16、lventThe 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 T
17、he resin solution may be prepared by either heatingthe resin/solvent combination as described in Test MethodD 1725, or dispersing using a high-speed mixer such as ablender. Please note results may vary dependent on method ofpreparation.8.1.2 The ratio of resin to solvent in the preparation shouldcor
18、respond as much as possible to the intended end use of thematerial, but should be chosen to avoid difficulty in effectingsolution at a low enough viscosity for efficient mixing duringdilution.8.1.3 The precision of weighing the resin and solvent shouldensure a maximum deviation of 61 % in the desire
19、d concen-tration. This percent solids must not be altered during resinsolution preparation by solvent loss.8.2 Determine the proper choice of beaker as follows:8.2.1 If no previous dilutability data is available for the testsample, start the test with a 150-mL glass beaker.8.2.2 If previous dilutabi
20、lity data indicates that the testsample is highly soluble, start the test with a 250-mL glassbeaker.8.3 Weigh the beaker with the magnetic stirrer bar or stirringrod. Record this tare weight as W1.8.4 Accurately weigh 10 6 0.1 g of the resin solution intothe beaker. Record this sample weight as W2.8
21、.5 Place the beaker in a 25C constant temperature bathuntil the resin solution reaches 25 6 1C as measured with thethermometer specified in 6.4.8.6 Prepare the dilution solvent by bringing it to a tempera-ture of 25 6 1C before adding it to the buret.8.7 Place the beaker over the piece of 10-point p
22、rint andbegin adding solvent slowly (5 to 6 mL/min) while stirring.Ensure that the sample temperature remains at 25 6 1C,which may require periodic return of the beaker to the waterbath. If the sample has started to form a haze it should not bereturned to the water bath.8.8 Observe the 10-point prin
23、t from the top of the beakerlooking through the solution.8.9 If the resin solution begins to cloud, add solvent slowlyone drop at a time while continuing to mix. Do not return thesample to the water bath at this point. If more than 100 g isrequired for the solution to begin to cloud, repeat the test
24、beginning at 8.4 using a 250-mL glass beaker.8.10 If the resin solution begins to cloud, add solvent slowlyone drop at a time while continuing to mix. Do not return thesample to the water bath at this point. If more than 200 g isrequired, the resin solution can be considered infinitely solubleunless
25、 otherwise specified in an agreement between the pur-chaser and supplier.8.11 The end point is reached when the 10-point printcannot be read looking through the solution from the top of thebeaker.8.12 Record the final weight of the beaker and its contents(W3).8.13 Record the sample temperature at th
26、e end point.9. Calculation9.1 Calculate the percent resin solution dilutability, D,asfollows:D 5W32 W11 W2!W23 100 (1)9.2 Calculate the percent solvent tolerance of the resin, S,(percent resin solids at cloud point) as follows:T 5W23 S/100!#W21 W32 W11 W2!#3 100 (2)where S = resin in solution, %.10.
27、 Report10.1 Report the following information:10.1.1 The identification of the resins and the solvent in thesolution as well as the dilution solvent,10.1.2 The method used to prepare the resin solution,10.1.3 The percent solids of the resin solution, and10.1.4 The percent resin dilutability value or
28、volume ofsolvent added per weight solution, and operating conditionsincluding air temperature, relative humidity, initial resin solu-tion temperature, final resin solution temperature, initial dilu-tion solvent temperature, and final dilution solvent tempera-ture.11. Precision11.1 An interlaboratory
29、 study was conducted in which oneoperator in each of eight laboratories determined the percentdilutability of two common resin solutions and two dilutionsolvents completed in duplicate on two different days. Thepooled within-laboratory standard deviation was found to be3.25 % of the value measured w
30、ith 12 df. The between-laboratory standard deviation was 7.63 % of the value mea-sured with 28 df. Based on these standard deviations, thefollowing criteria should be used for judging the acceptabilityof results at the 95 % confidence level.11.2 RepeatabilityTwo results, each the mean of duplicatede
31、terminations, obtained by the same operator should beconsidered suspect if they differ by more than 9.19 % of thevalue measured.11.3 ReproducibilityTwo results, each the mean of dupli-cate determinations obtained by operators in different labora-tories, should be considered suspect if they differ by
32、 more than23.38 % of the value measured.D506209212. Keywords12.1 dilutability value; percent dilutability; printing inkresins; resins; resin solution cloud point; resin solution di-lutability; solvent toleranceSUMMARY OF CHANGESCommittee D01.37 has identified the location of selected changes to this
33、 standard since the last issue(D 5062 - 96 (2001) that may impact the use of this standard. (Approved March 1, 2009.)(1) The procedure has been expanded to evaluate highlysoluble resins through the use of a larger (250 mL) beaker if theresin solution does not cloud after the addition of 100 g ofsolv
34、ent in a 150 mL beaker.ASTM 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 infringem
35、ent 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
36、 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 kn
37、own to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).D5062093
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