ASTM D3620-2004(2009) Standard Specification for Glacial Acetic Acid《冰乙酸的标准规范》.pdf

1、Designation: D 3620 04 (Reapporved 2009)Standard Specification forGlacial Acetic Acid1This standard is issued under the fixed designation D 3620; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A number i

2、n 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 al

3、l 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 Practi

4、ce 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 establ

5、ish 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:2D 21

6、91 Test Method for Acetaldehyde Content of VinylAcetateD 3546 Test Method for FormicAcid in GlacialAceticAcidE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE 180 Practice for Determining the Precision of ASTMMethods for Analysis and Testing of Indus

7、trial and Spe-cialty ChemicalsE 300 Practice for Sampling Industrial ChemicalsE 302 Test Methods for Monobasic Organic Acids (Discon-tinued 2001)3E 394 Test Method for Iron in Trace Quantities Using the1,10-Phenanthroline Method2.2 U.S. Federal Specification:PPP-C-2020 Chemicals, Liquid, Dry, and Pa

8、ste: 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 0.40Acetaldehyde, weight %, max 0.05Formic acid, weight %, max

9、0.094. Sampling4.1 The material shall be sampled in accordance withPractice E 300.5. Test Methods5.1 The properties enumerated in this specification shall bedetermined in accordance with the following ASTM testmethods:5.1.1 PurityTest Methods E 302 estimates the purity fromthe freezing point.5.1.2 F

10、reezing PointTest Methods E 302.5.1.3 ColorTest Methods E 302.5.1.4 WaterTest Methods E 302.5.1.5 IronTest Method E 394, 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 acceptabl

11、e for averaging (95 % confidence level).1This 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

12、June 1, 2009. Published June 2009. Originallyapproved in 1977. Last previous edition approved in 2004 as D 3620 04.2For 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 t

13、he standards Document Summary page onthe ASTM website.3Withdrawn. The last approved version of this historical standard is referencedon www.astm.org.4Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.m

14、il.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.5.1.5.2 Precision5The precision statements are basedupon an interlaboratory study in which one operator in eightdiff

15、erent laboratories analyzed two samples of acetic acid induplicate on two different days. The results were treated inaccordance with Practice E 180. 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. Basedup

16、on 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 of dupli-cates, obtained by the same operator on different days shouldbe considered suspect if they differ by

17、more 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 m

18、aterial having an acceptedreference value.5.1.6 AcetaldehydeTest Method D 2191, 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).

19、5.1.6.2 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 E 180. The within-laboratory standard deviati

20、on was f0.0055 with 14 df, and the between-laboratory standard devia-tion was 0.0094 with 6 df. Based upon these standard devia-tions, 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 ofdupli

21、cates, 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

22、% absolute.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 D 3546 uses formic acidas a calibration standard. The test method measures all reduc-ing acids as formic acid.6. Packaging an

23、d Package 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 acidSUMMARY OF CHANGESSubcommittee D01.35 has id

24、entified the location of selected changes to this standard since the last issue(D 3620 98) that may impact the use of this standard.(1) Added reference to Practice E29 in 1.2 of the Scopesection.(2) Added Practice E29to list of Referenced Documents in2.1.ASTM International takes no position respecti

25、ng 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 infringement of such rights, are entirely their own responsibility.This stand

26、ard 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 for additional standardsand should be addressed to ASTM Internation

27、al 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 known to the ASTM Committee on Standards, at the address shown below.T

28、his 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).5Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR: D01-1010.D 3620 04 (Reapporved 2009)2