ASTM_D_1579_-_01_2013.pdf

Designation:D157901(Reapproved 2013)Standard Test Method forFiller Content of Phenol,Resorcinol,and MelamineAdhesives1This standard is issued under the fixed designation D1579;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.as part of Federal Test Method Standard No.175a.1.Scope1.1 This test method is suitable for measuring the fillercontent of phenol,resorcinol,and melamine resin-base adhe-sives mixed with hardener or catalyst,that set at room,intermediate,and high temperatures.Results are expressed onthe basis of the nonvolatile content of the mixed,liquidadhesive.1.2 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.3 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:2D907 Terminology of AdhesivesD1582 Test Method for Nonvolatile Content of LiquidPhenol,Resorcinol,and Melamine Adhesives3.Terminology3.1 DefinitionsMany terms used in this test method aredefined in Terminology D907.4.Significance and Use4.1 It is possible to modify the properties of phenol,resorcinol,and melamine-based adhesives by adding fillers tothe adhesive and in doing so affect the way the adhesiveperforms.This test method makes possible accurate determi-nation of these filler levels for purposes of quality control andcharacterization of the adhesive.5.Apparatus5.1 Erlenmeyer Flask,or beaker,of 100-mL capacity.5.2 Analytical Balance,accurate to 0.001 g.5.3 Circulating-Air Oven,capable of maintaining a tem-perature of 105 6 1C(221 6 1.8F).5.4 Desiccator,with drying agent and tray.5.5 Sintered Glass Crucible,of coarse or medium porosity.6.Sampling6.1 Except in special cases,take a sample from eachcomponent of the adhesive.When possible,use a compositesample of each component chosen from three or more separatecontainers,chosen at random.Also take samples from contain-ers which appear to be nonrepresentative and test such samplesseparately.Place the samples immediately in clean,dry,airtightcontainers,filled to prevent excessive air space above theadhesive and transported to the testing laboratory.Take pre-cautions to reduce evaporation or drying of the adhesive to aminimum.Mix the adhesive in the can thoroughly if there is atendency for the materials to separate before a sample is taken.6.2 Test three specimens of each sample,unless otherwiserequired.7.Procedure7.1 Mix the adhesive in accordance with the instructions ofthe manufacturer.7.2 Phenol and Resorcinol BaseAccurately weigh to thenearest 1 mg approximately 2 g of the freshly mixed adhesive(cut film adhesives into small pieces approximately 13-mm(0.5-in)square before weighing)in a 100-mL beaker orErlenmeyer flask,add 50-mL of absolute methyl alcohol,andstir the mixture thoroughly for 3 min.Filter the mixturepromptly through a previously weighed,sintered glass crucibleof coarse or medium porosity and wash the contents of the1This test method is under the jurisdiction of ASTM Committee D14 onAdhesives and is the direct responsibility of Subcommittee D14.30 on WoodAdhesives.Current edition approved Oct.1,2013.Published October 2013.Originallyapproved in 1958.Last previous edition approved in 2008 as D1579 01(2008).DOI:10.1520/D1579-01R13.2For 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.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 beaker onto the filter with another 50-mL portion of methylalcohol.Wash the residue in the crucible with at least 50-mL ofboiling distilled water,dry to approximately constant weight at105 6 1C(221 6 1.8F),cool in a desiccator,and weighaccurately.7.3 Melamine BaseAccurately weigh to the nearest 1 mgapproximately 2 g of freshly mixed adhesive in a 100-mLbeaker or Erlenmeyer flask,add 50 mL of a cold solution madeof 20 parts(by volume)of glacial acetic acid,20 parts of 95%ethyl alcohol,and 60 parts of distilled water.Thoroughly stirthis mixture for 1 min and add 0.5 g of accurately weighed(tothe nearest 1 mg)acid-washed diatomaceous earth which hasbeen previously oven-dried overnight at 105 6 1C(22161.8F)and cooled in a desiccator.Continue to stir for 2 min andfilter the suspension immediately through a previously weighedsintered glass crucible of medium porosit