1、Designation: D 3620 04Standard 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 in parentheses indi
2、cates the year of last reapproval. Asuperscript epsilon (e) 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 values stated in SI units are to be rega
3、rded as thestandard. The values given in parentheses are for informationonly.1.3 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 rig
4、ht-hand digitused in expressing the specification limit, in accordance withthe rounding-off method of Practice E 29.1.4 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
5、 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 2191 Test Method f
6、or Acetaldehyde Content of VinylAcetateD 3546 Test Method for Formic Acid in Glacial Acetic AcidE 29 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 Industrial and Sp
7、e-cialty ChemicalsE 300 Practice for Sampling Industrial ChemicalsE 302 Test Methods for Monobasic Organic AcidsE 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 Paste: Packagingof33. Properties3.1
8、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 0.094. Sampling4.1 The material sh
9、all 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 Freezing PointTest Methods E 302.5.
10、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 acceptable for averaging (95 % confidence l
11、evel).5.1.5.2 Precision4The precision statements are basedupon an interlaboratory study in which one operator in eightdifferent 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-
12、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 criteria1This specification is under the jurisdiction of ASTM Committee D01 on Paintand Related Coatings, Materials, and Applica
13、tions and is the direct responsibility ofSubcommittee D01.35 on Solvents, Plasticizers, and Chemical Intermediates.Current edition approved June 1, 2004. Published June 2004. Originallyapproved in 1977. Last previous edition approved in 1998 as D 3620 98.2For referenced ASTM standards, visit the AST
14、M 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.3Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philade
15、lphia, PA 19111-5098.4Supporting data have been filed at ASTM International Headquarters and maybe obtained by requesting Research Report RR: D01-1010.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocke
16、n, PA 19428-2959, United States.should 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 more than 9.2 %relative.5.
17、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 material having an accepted
18、reference 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).5.1.6.2 PrecisionThe preci
19、sion 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 deviation was f0.0055 with 14 df,
20、 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 ofduplicates, obtained by the sam
21、e 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 % absolute.5.1.6.5 Bias ca
22、nnot be determined for this specificationbecause 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 and Package Marking6.1 Package siz
23、e 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 identified the location of selecte
24、d changes to this standard since the last issue(D 3620 98) that may impact the use of this standard.(1) Added reference to Practice E 29 in 1.3 of the Scopesection.(2) Added Practice E 29 to list of Referenced Documents in2.1.ASTM International takes no position respecting the validity of any patent
25、 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 subject to revision at
26、 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 Headquarters. Your comment
27、s 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 standard is copyrighted b
28、y 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).D3620042
