1、Designation: D3620 04 (Reapproved 2017)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
2、parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers glacial (99.8 %) acetic acid foruse in paint, varnish, lacquer, and related products.1.2 The following applies to all s
3、pecified 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
4、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
5、 appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 For specific hazard information and guidance, see thesuppliers Safety Data Sheet for materials listed in this speci-fication.1.6 This international standard was devel
6、oped in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Docu
7、ments2.1 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
8、Analysis and Testing of Industrial and Spe-cialty Chemicals (Withdrawn 2009)3E300 Practice for Sampling Industrial ChemicalsE302 Test Methods for Monobasic Organic Acids (Discon-tinued 2001) (Withdrawn 2001)3E394 Test Method for Iron in Trace Quantities Using the1,10-Phenanthroline Method2.2 U.S. Fe
9、deral Specification:PPP-C-2020 Chemicals, Liquid, Dry, and Paste: Packagingof43. Properties3.1 Glacial acetic acid shall conform to the followingrequirements:Acetic acid, weight %, min 99.8Freezing point, C, min 16.2Color, Pt-Co scale, max 10Water content, weight %, max 0.16Iron, ppm (mg/kg), max 0.
10、40Acetaldehyde, weight %, max 0.05Formic acid, weight %, max 0.094. 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 Metho
11、ds 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.1This specification is under the jurisdiction of ASTM Committee D01 on Pai
12、ntand Related Coatings, Materials, and Applications and is the direct responsibility ofSubcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.Current edition approved Dec. 1, 2017. Published December 2017. Originallyapproved in 1977. Last previous edition approved in 2009 as D3620
13、 04 (2009).DOI: 10.1520/D3620-04R17.2For 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 versio
14、n of this historical standard is referenced onwww.astm.org.4Available from DLA Document Services, Building 4/D, 700 Robbins Ave.,Philadelphia, PA 19111-5094, http:/quicksearch.dla.mil.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThi
15、s international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (T
16、BT) Committee.15.1.5.1 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 eightdiff
17、erent laboratories analyzed two samples of acetic acid induplicate 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. Basedupo
18、n 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 mor
19、e than 9.2 %relative.5.1.5.4 ReproducibilityTwo results, each the mean ofduplicates, obtained by operators in different laboratoriesshould be considered suspect if they differ by more than 20.6 %relative.5.1.5.5 BiasBias cannot be determined for this specifica-tion because there is no available mate
20、rial having an acceptedreference value.5.1.6 AcetaldehydeTest Method D2191, using 100 mL ofsodium bisulfite and a 25-mL specimen.5.1.6.1 ReportReport the acetaldehyde content to thenearest 0.001 %. Duplicates that agree within 0.007 % absoluteare acceptable for averaging (95 % confidence level).5.1.
21、6.2 PrecisionThe precision statements are based uponan interlaboratory study in which one operator in eight differentlaboratories analyzed two samples of acetic acid in duplicateon 2 different days. The results were treated in accordance withPractice E180. The within-laboratory standard deviation wa
22、s f0.0055 with 14 df, and the between-laboratory standard devia-tion was 0.0094 with 6 df. Based upon these standarddeviations, the following criteria should be used for judging theacceptability of results at the 95 % confidence level.5.1.6.3 RepeatabilityTwo results, each of the mean ofduplicates,
23、obtained by the same operator on different daysshould be considered suspect if they differ by more than0.017 % absolute.5.1.6.4 ReproducibilityTwo results, each the mean ofduplicates, obtained by operators in different laboratoriesshould be considered suspect if they differ by more than0.032 % absol
24、ute.5.1.6.5 BiasBias cannot be determined for this specifica-tion because there is no available material having an acceptedreference value.5.1.7 Formic AcidTest Method D3546 uses formic acid asa calibration standard. The test method measures all reducingacids as formic acid.6. Packaging and Package
25、Marking6.1 Package size shall be agreed upon between the pur-chaser and the supplier.6.2 Packaging shall conform to applicable carrier rules andregulations or when specified shall conform to Fed. Spec.PPP-C-2020.7. Keywords7.1 glacial acetic acidASTM International takes no position respecting the va
26、lidity 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 infringement of such rights, are entirely their own responsibility.This standard is su
27、bject 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 for additional standardsand should be addressed to ASTM International Headqu
28、arters. 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 known to the ASTM Committee on Standards, at the address shown below.This stand
29、ard 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 ser
30、viceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR:D01-1010. ContactASTM CustomerService at serviceastm.org.D3620 04 (2017)2
