ASTM_D_3620_-_04_2009.pdf

Designation:D362004(Reapproved 2009)Standard Specification forGlacial Acetic Acid1This standard is issued under the fixed designation D3620;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 specification covers glacial(99.8%)acetic acid foruse in paint,varnish,lacquer,and related products.1.2 The following applies to all specified limits in thisstandard;for purposes of determining conformance with thisstandard,an observed value or a calculated value shall berounded off“to the nearest unit”in the last right-hand digitused in expressing the specification limit,in accordance withthe rounding-off method of Practice E29.1.3 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.1.4 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.1.5 For specific hazard information and guidance,see thesuppliers Material Safety Data Sheet for materials listed in thisspecification.2.Referenced Documents2.1 ASTM Standards:2D2191 Test Method for Acetaldehyde Content of VinylAcetateD3546 Test Method for Formic Acid in Glacial Acetic AcidE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Industrial and Spe-cialty Chemicals(Withdrawn 2009)3E300 Practice for Sampling Industrial ChemicalsE302 Test Methods for Monobasic Organic Acids(Discon-tinued 2001)(Withdrawn 2001)3E394 Test Method for Iron in Trace Quantities Using the1,10-Phenanthroline Method2.2 U.S.Federal Specification:PPP-C-2020 Chemicals,Liquid,Dry,and Paste:Packagingof43.Properties3.1 Glacial acetic acid shall conform to the followingrequirements:Acetic acid,weight%,min99.8Freezing point,C,min16.2Color,Pt-Co scale,max10Water content,weight%,max0.16Iron,ppm(mg/kg),max0.40Acetaldehyde,weight%,max0.05Formic acid,weight%,max0.094.Sampling4.1 The material shall be sampled in accordance withPractice E300.5.Test Methods5.1 The properties enumerated in this specification shall bedetermined in accordance with the following ASTM testmethods:5.1.1 PurityTest Methods E302 estimates the purity fromthe freezing point.5.1.2 Freezing PointTest Methods E302.5.1.3 ColorTest Methods E302.5.1.4 WaterTest Methods E302.5.1.5 IronTest Method E394,using a 20-mL specimendiluted to 80 mL with water.5.1.5.1 ReportReport the iron content to the nearest 0.01ppm(mg/kg).Duplicates that agree within 0.07 ppm absoluteare acceptable for averaging(95%confidence level).5.1.5.2 Precision5The precision statements are basedupon an interlaboratory study in which one operator in eightdifferent laboratories analyzed two samples of acetic acid in1This specification 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 1,2009.Published June 2009.Originallyapproved in 1977.Last previous edition approved in 2004 as D3620 04.DOI:10.1520/D3620-04R09.2For 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.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.5Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D01-1010.*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 duplicate on two different days.The results were treated inaccordance with Practice E180.The within-laboratory coeffi-cient of variation was 3.05%with 14 df and the between-laboratory coefficient of variation was 6.00%with 6 df.Basedupon these coefficients of variation,the following criteriashould be used for judging the acceptability of results at the95%confidence level.5.1.5.3 RepeatabilityTwo results,each the mean ofduplicates,obtained by the same operator on different daysshould be considered suspect if they differ by more than 9.2%relative.5.1.5.4 ReproducibilityTwo results,each the mean ofduplicates,obtained by operators in different laboratoriesshould be considere